DES-3225G DES-3225GF 24-Port Fast Ethernet Switch User’s Guide First Edition (October, 1999) 6DES3225G.
Wichtige Sicherheitshinweise 1. Bitte lesen Sie sich diese Hinweise sorgfältig durch. 2. Heben Sie diese Anleitung für den spätern Gebrauch auf. 3. Vor jedem Reinigen ist das Gerät vom Stromnetz zu trennen. Vervenden Sie keine Flüssig- oder Aerosolreiniger. Am besten dient ein angefeuchtetes Tuch zur Reinigung. 4. Um eine Beschädigung des Gerätes zu vermeiden sollten Sie nur Zubehörteile verwenden, die vom Hersteller zugelassen sind. 5. Das Gerät is vor Feuchtigkeit zu schützen. 6.
18. Zum Netzanschluß dieses Gerätes ist eine geprüfte Leitung zu verwenden, Für einen Nennstrom bis 6A und einem Gerätegewicht gr•ßer 3kg ist eine Leitung nicht leichter als H05VV-F, 3G, 0.75mm2 einzusetzen.
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This is a Class A product. In a domestic environment, this product may cause radio interference in which case the user may be required to take adequate measures.
ABOUT THIS GUIDE ................................ ................................ ............. V TERMS ................................ ................................ ................................ ..... V OVERVIEW OF THIS USER’S GUIDE ................................ ............................. V INTRODUCTION ................................ ................................ .................... 1 FAST ETHERNET TECHNOLOGY ................................ ................................
SWITCH TO END NODE ................................ ................................ ............. 20 SWITCH TO HUB OR SWITCH ................................ ................................ .....21 10BASE-T Device................................ ................................ ................ 23 100BASE-TX Device ................................ ................................ ........... 23 SWITCH MANAGEMENT CONCEPTS................................ ............... 24 LOCAL CONSOLE MANAGEMENT .........
Create/Modify User Accounts ................................ ................................ ..... 59 View/Delete User Accounts ................................ ................................ ........ 61 SETTING UP THE SWITCH ................................ ................................ ......... 62 Configuration................................ ................................ ...................... 62 Configure IP Address................................ ................................ ............
Port Mirroring ................................ ................................ .......................... 135 Switch Settings ................................ ................................ ......................... 136 Filtering and Forwarding Table ................................ ................................ . 139 Spanning Tree ................................ ................................ .......................... 147 IGMP Filtering ................................ ..........................
24-port NWay Ethernet Switch User’s Guide ABOUT THIS G UIDE This User’s guide tells you how to install your DES-3225G, how to connect it to your Ethernet network, and how to set its configuration using either the built-in console interface or Web-based management. Terms For simplicity, this documentation uses the terms “Switch” (first letter upper case) to refer to the DES-3225G 24-port NWay Ethernet Switch, and “switch” (first letter lower case) to refer to all Ethernet switches, including the DES-3225G.
24-port NWay Ethernet Switch User’s Guide ♦ Chapter 4, Connecting the Switch. Tells how you can connect the DES-3225G to your Ethernet network. ♦ Chapter 5, Switch Management. Talks about Local Console Management via the RS-232 DCE console port and other aspects about how to manage the Switch. ♦ Chapter 6, Using the Console Interface. Tells how to use the built-in console interface to change, set, and monitor Switch performance and security. ♦ Chapter 7, Web-Based Network Management.
24-port NWay Ethernet Switch User’s Guide 1 I NTRODUCTION This section describes the features of the Switch, as well as giving some background information about Ethernet/Fast Ethernet, Gigabit Ethernet, and switching technology. Fast Ethernet Technolog The growing importance of LANs and the increasing complexity of desktop computing applications are fueling the need for high performance networks.
24-port NWay Ethernet Switch User’s Guide Gigabit Ethernet Technolog Gigabit Ethernet is an extension of IEEE 802.3 Ethernet utilizing the same packet structure, format, and support for CSMA/CD protocol, full duplex, flow control, and management objects, but with a tenfold increase in theoretical throughput over 100Mbps Fast Ethernet and a one hundred-fold increase over 10Mbps Ethernet.
24-port NWay Ethernet Switch User’s Guide technology and digital signal processing that will enable Gigabit Ethernet to eventually operate over unshielded twisted-pair (UTP) cabling, outfitting your network with a powerful 1000Mbps-capable backbone/server connection creates a flexible foundation for the next generation of network technology products. Switching Technolog Another key development pushing the limits of Ethernet technology is in the field of switching technology.
24-port NWay Ethernet Switch User’s Guide to split parts of the network into di fferent collision domains, for example, making it possible to expand your Fast Ethernet network beyond the 205 meter network diameter limit for 100BASE-TX networks. Switches supporting both traditional 10Mbps Ethernet and 100Mbps Fast Ethernet are also ideal for bridging between existing 10Mbps networks and new 100Mbps networks.
24-port NWay Ethernet Switch User’s Guide ♦ All ports can auto-negotiate (NWay) between 10Mbps/ 100Mbps, half-duplex or full duplex and flow control. ♦ One rear panel slide-in module interface for a 1-port 1000BASE-SX Gigabit Ethernet module for connecting to another switch. ♦ One slide-in module interface in the front panel for 1 or 2 port 10/100M Ethernet connection. Three modules are available: 2 ports TX module, 2 ports FX MT-RJ type module, and 1 port FX SC type module.
24-port NWay Ethernet Switch User’s Guide ♦ Data forwarding rate 148,800pps per port at 100% of wire-speed for 100Mbps speed. ♦ Data filtering rate eliminates all error packets, runts, etc. at 14,880pps per port at 100% of wire-speed for 10Mbps speed. ♦ Data filtering rate eliminates all error packets, runts, etc. at 148,800pps per port at 100% of wire-speed for 100Mbps speed. ♦ 12K active MAC address entry table per device with automatic learning and aging (10 to 9999 seconds).
24-port NWay Ethernet Switch User’s Guide 2 UNPACKING AND S ETUP This chapter provides unpacking and setup information for the Switch. Unpacking Open the shipping carton of the Switch and carefully unpack its contents. The carton should contain the following items: ♦ One DES-3225G 24-port NWay Ethernet Switch ♦ One 2-port 100BASE-TX Fast Ethernet module preinstalled on front panel (DES-3225GF includes a 1port 100BASE-FX module preinstalled).
24-port NWay Ethernet Switch User’s Guide If any item is found missing or damaged, please contact your local D-Link reseller for replacement. Installation Use the following guidelines when choosing a place to install the Switch: ♦ The surface must support at least 5 kg. ♦ The power outlet should be within 1.82 meters (6 feet) of the device. ♦ Visually inspect the power cord and see that it is secured to the AC power connector.
24-port NWay Ethernet Switch User’s Guide Figure 2-1. Installing rubber feet for desktop installation Rack Installation The DES-3225G can be mounted in an EIA standard-sized, 19-inch rack, which can be placed in a wiring closet with other equipment. To install, attach the mounting brackets on the switch ’s side panels (one on each side) and secure them with the screws provided. Figure 2- 2A.
-port NWay Ethernet Switch User’s Guide Figure 2-2B. Installing the switch on an equipment rack Power on The DES-3225G switch can be used with AC power supply 100-240 VAC, 50 - 60 Hz. The power switch is located at the rear of the unit adjacent to the AC power connector and the system fan. The switch ’s power supply will adjust to the local power source automatically and may be turned on without having any or all LAN segment cables connected.
24-port NWay Ethernet Switch User’s Guide ♦ The power LED indicator will blink while the Switch loads onboard software and performs a self-test. After approximately 20 seconds, the LED will light again to indicate the switch is in a ready state. ♦ The console LED indicator will remain ON if there is a connection at the RS-232 port, otherwise this LED indicator is OFF. ♦ The 100M LED indicator may remain ON or OFF depending on the transmission speed.
24-port NWay Ethernet Switch User’s Guide 3 I DENTIFYING E XTERNAL COMPONENTS This chapter describes the front panel, rear panel, optional plug-in modules, and LED indicators of the DES-3225G. Front Panel The front panel of the Switch consists of LED indicators, an RS-232 communication port, a slide-in module slot, two uplink ports, and 22 (10/100 Mbps) Ethernet/Fast Ethernet ports. Figure 3-1. Front panel view of the Switch ♦ Comprehensive LED indicators display the status of the switch and the network.
24-port NWay Ethernet Switch User’s Guide ♦ An RS-232 DCE console port for setting up and managing the switch via a connection to a console terminal or PC using a terminal emulation program. ♦ A front-panel slide-in module slot for 10/100 Mbps Ethernet ports can accommodate a 2-port 10/100BASE-TX Fast Ethernet module, a 2-port 100BASE-FX MT-RJ type module, or a 1-port 100BASE-FX SC type module.
24-port NWay Ethernet Switch User’s Guide Figure 3-3. Rear panel view of the Switch fitted with the optional Gigabit Ethernet slide-in modul ♦ The optional Gigabit Ethernet slide-in module has a 1000BASE-SX fiber port for connecting to another switch. ♦ The AC power connector is a standard three-pronged connector that supports the power cord. Plug-in the female connector of the provided power cord into this socket, and the male side of the cord into a power outlet.
24-port NWay Ethernet Switch User’s Guide ♦ The system fans are used to dissipate heat. The sides of the system also provide heat vents to serve the same purpose. Do not block these openings, and leave at least 6 inches of space at the rear and sides of the switch for proper ventilation. Be reminded that without proper heat dissipation and air circulation, system components might overheat, which could lead to system failure.
24-port NWay Ethernet Switch User’s Guide ♦ Supports Category 5 UTP or STP cable connections of up to 100 meters. 100BASE-FX Fiber Module Figure 3-6. 100BASE-FX one-port modul ♦ Front-panel module. ♦ Connects to 100BASE-FX devices at full or half-duplex. ♦ Supports multi-mode fiber-optic cable connections of up to 412 meters in half-duplex or 2 km in full-duplex mode.
24-port NWay Ethernet Switch User’s Guide 100BASE-FX Fiber (MTRJ Type) Module Figure 3-7. 100BASE-FX two-port modul ♦ Front-panel module. ♦ Connects to 100BASE-FX devices at full or half-duplex. ♦ Supports multi-mode fiber-optic cable connections of up to 412 meters in half-duplex or 2 km in full-duplex mode. 1000BASE-SX Gigabit Module Figure 3-8. 1000BASE-SX gigabit one-port modul ♦ Rear-panel module. ♦ Connects to 1000BASE-SX devices at full duplex only.
24-port NWay Ethernet Switch User’s Guide LED Indicators The LED indicators of the Switch include Power, Console, Slot, Giga, Speed, and Link/Act. The following shows the LED indicators for the Switch along with an explanation of each indicator. Figure 3-9. The LED indicators ♦ Power This indicator on the front panel should be colored amber during the Power-On Self Test (POST). It will light green approximately 2 seconds after the switch is powered on to indicate the ready state of the device.
24-port NWay Ethernet Switch User’s Guide ♦ Giga This indicator is lit green when a link is established. It blinks green when the Gigabit port is active. ♦ 100M These indicators are illuminated green when a 100 Mbps device is connected to any of the 24 ports or uplink port. If a 10 Mbps device is connected to any of the 24 ports or uplink port, these LEDs remain dark. ♦ Link/Act. These indicators are lit when there is a secure connection (or link) to a device at any of the ports.
24-port NWay Ethernet Switch User’s Guide 4 CONNECTING THE S WITCH This chapter describes how to connect the DES-3225G to your Fast Ethernet network. Switch to End Node End nodes include PCs outfitted with a 10, 100 or 10/100 Mbps RJ-45 Ethernet/Fast Ethernet Network Interface Card (NIC) and most routers. The RJ-45 UTP ports on NICs and most routers are MDI-II. When using a normal straight-through cable, an MDI-II port must connect to an MDI-X port.
24-port NWay Ethernet Switch User’s Guide 1X must remain vacant; if the bottom Uplink port is in use, Port 2X cannot be used. Figure 4-1. Switch connected to an End Nod The LED indicators for the port the end node is connected to are lit according to the capabilities of the NIC. If LED indicators are not illuminated after making a proper connection, check the PC’s LAN card, the cable, switch conditions, and connections.
24-port NWay Ethernet Switch User’s Guide crossover cable, the connection must be made from Uplink to Uplink, or from a crossed port to another crossed port. ♦ A 10BASE-T hub or switch can be connected to the Switch via a two-pair Category 3, 4 or 5 UTP/STP straight cable. ♦ A 100BASE-TX hub or switch can be connected to the Switch via a two-pair Category 5 UTP/STP straight cable.
24-port NWay Ethernet Switch User’s Guide 10BASE-T Device For a 10BASE-T device, the Switch’s LED indicators should display the following: ♦ 100M LED speed indicator is OFF. ♦ Link/Act indicator is ON. 100BASE-TX Device For a 100BASE-TX device, the Switch’s LED indicators should display the following: ♦ 100M LED speed indicator is ON. ♦ Link/Act is ON.
24-port NWay Ethernet Switch User’s Guide 5 S WITCH MANAGEMENT CONCEPTS This chapter discusses many of the features used to manage the switch, and explains many concepts and important points regarding these features. Configuring the switch to implement these concepts is discussed in detail in the next chapters. Local Console Management Local console management involves the administration of the DES-3225G Switch via a direct connection to the RS232 DCE console port.
24-port NWay Ethernet Switch User’s Guide Hardware components in the Switch allow it to be an active part of a manageable network. These components include a CPU, memory for data storage, other related hardware, and SNMP agent firmware. Activities on the Switch can be monitored with these components, while the Switch can be manipulated to carry out specific tasks.
24-port NWay Ethernet Switch User’s Guide IP Addresses and SNMP Community Names Each Switch has its own IP Address, which is used for communication with an SNMP network manager or other TCP/IP application (for example BOOTP, TFTP). You can change the default Switch IP Address to meet the specification of your networking address scheme. In addition, you can also set an IP Address for a gateway router.
24-port NWay Ethernet Switch User’s Guide ◊ System resets ◊ Errors ◊ Status changes ◊ Topology changes ◊ Operation You can also specify which network managers may receive traps from the Switch by setting a list of IP Addresses of the authorized network managers. Trap managers are special users of the network who are given certain rights and access in overseeing the maintenance of the network.
24-port NWay Ethernet Switch User’s Guide ♦ New Root This trap indicates that the Switch has become the new root of the Spanning Tree, the trap is sent by a bridge soon after its election as the new root. This implies that upon expiration of the Topology Change Timer the new root trap is sent out immediately after the Switch’s selection as a new root.
24-port NWay Ethernet Switch User’s Guide Base module. Consequently, values for MIB objects can be retrieved from any SNMP-based network manager software. In addition to the standard MIB-II, the Switch also supports its own proprietary enterprise MIB as an extended Management Information Base. These MIBs may also be retrieved by specifying the MIB’s Object-Identity (OID) at the network manager. MIB values can be either read-only or read-write.
24-port NWay Ethernet Switch User’s Guide Packet Forwarding The Switch learns the network configuration and uses this information to forward packets. This reduces the traffic congestion on the network, because packets, instead of being transmitted to all segments, are transmitted to the destination only. Example: if Port 1 receives a packet destined for a station on Port 2, the Switch transmits that packet through Port 2 only, and transmits nothing through the other ports.
24-port NWay Ethernet Switch User’s Guide Filtering Database A switch uses a filtering database to segment the network and control communications between segments. It also filters packets off the network for intrusion control (MAC Address filtering). For port filtering, each port on the switch is a unique collision domain and the switch filters (discards) packets whose destination lies on the same port as where it originated.
24-port NWay Ethernet Switch User’s Guide Spanning Tree Algorithm The Spanning Tree Algorithm (STA) in the Switch allows you to create alternative paths (with multiple switches or other types of bridges) in your network. These backup paths are idle until the Switch determines that a problem has developed in the primary paths. When a primary path is lost, the switch providing the alternative path will automatically go into service with no operator intervention.
24-port NWay Ethernet Switch User’s Guide the Designated Bridges. On the port level, STA sets the Root Port and Designated Ports. Details are as follows: On the Bridge Level ♦ Root Bridge The switch with the lowest Bridge Identifier is the Root Bridge. Naturally, you will want the Root Bridge to be the best switch among the switches in the loop to ensure the highest network performance and reliability.
24-port NWay Ethernet Switch User’s Guide the better the chance the Switch will be selected as the Root Bridge. On the Port Level ♦ Root Port Each switch has a Root Port. This is the port that has the lowest Path Cost to the Root Bridge. In case there are several such ports, then the one with the lowest Port Identifier is the Root Port. ♦ Designated Port This is the port on each Designated Bridge that is attached to the LAN segment for which the switch is the Designated Bridge.
24-port NWay Ethernet Switch User’s Guide ♦ Bridge Hello Time The Hello Time can be from 1 to 10 seconds. This is the interval between two transmissions of BPDU packets sent by the Root Bridge to tell all other Switches that it is indeed the Root Bridge. If you set a Hello Time for your Switch, and it is not the Root Bridge, the set Hello Time will be used if and when your Switch becomes the Root Bridge. Note: The Hello Time cannot be longer than the Max. Age. Otherwise, a configuration error will occur.
24-port NWay Ethernet Switch User’s Guide Illustration of STA A simple illustration of three Bridges (or the Switch) connected in a loop is depicted in Figure 5-1. In this example, you can anticipate some major network problems if the STA assistance is not applied. For instance, if Bridge 1 broadcasts a packet to Bridge 2, Bridge 2 will broadcast it to Bridge 3, and Bridge 3 will broadcast it to Bridge 1...and so on.
24-port NWay Ethernet Switch User’s Guide Figure 5-1. Before Applying the STA Rule Figure 5-2.
24-port NWay Ethernet Switch User’s Guide Hello Time 1 - 10 sec. No effect, if not Root Bridge Never set greater than Max. Age Time Max. Age Time 6 - 40 sec. Compete for Root Avoid low number for Bridge, if BPDU is unnecessary reset of not received Root Bridge Forward Delay 4 - 30 sec. High # delays the change in state Max. Age ≤ 2 x (Forward Delay - 1) Max.
24-port NWay Ethernet Switch User’s Guide trunk group which consists of the 2 ports of the Slot 1, 100BASE-TX or 100BASE-FX front-panel module. The master port for the first group is preset as port 7, the master port for the second group is port 15 and the master port for the third group is the first port (1x) on the 2-port module. The switch treats all ports in a trunk group as a single port. As such, trunk ports will not be blocked by Spanning Tree.
24-port NWay Ethernet Switch User’s Guide data streams over a single trunk port. Switches that use a load-balancing scheme that sends the packets of a host-tohost data stream over multiple trunk ports cannot have a trunk connection with the DES-3225G switch. VLAN VLANs are a collection of users or ports grouped together in a secure, autonomous broadcast and multicast domain . Membership to a VLAN is not restricted by a physical location and can be defined across multiple LAN switches.
24-port NWay Ethernet Switch User’s Guide VLANs can also provide a level of security to your network. MAC-based VLANs will only deliver packets between stations that are members of the VLAN. Port-based VLANs allow you to configure ports to not accept packets from outside of the VLAN. The untagging feature of IEEE 802.1Q VLANs allow VLANs to work with legacy switches that don ’t recognize VLAN tags in packet headers. The tagging feature allows VLANs to span multiple 802.
24-port NWay Ethernet Switch User’s Guide Setting up MAC-based VLANs is a relatively straightforward process. Simply create the VLAN by assigning it a name (description) and add MAC addresses for the stations that will be members. Port-based VLANs The DES-3225G supports up to 96 port-based VLANs. Portbased VLANs limit traffic that flows into and out of switch ports.
24-port NWay Ethernet Switch User’s Guide transmit and receive VLAN traffic, and the difference between them provides network segmentation, while still allowing resources to be shared across more than one VLAN. VLAN Segmentation Take for example a packet that is transmitted by a machine on Port 1 that is a member of VLAN 2 and has the Port VLAN ID number 2 (PVID=2).
24-port NWay Ethernet Switch User’s Guide VL AN 3 VL AN 2 VL A N 1 1 2 3 4 Port VIDs = 1 5 6 7 8 9 10 11 12 Port VIDs = 2 Port PVID = 3 G ra p h ics W o rksta tio n s N e tw o rk S e rve r W o rks ta tio n s In the above example, there are three different VLANs and each port can transmit packets on one of them according to their Port VLAN ID (PVID) number. However, a port can receive packets on all VLANs (VID ) that it belongs to.
24-port NWay Ethernet Switch User’s Guide packets to it to be printed. Ports 1, 2 and 3 send these packets on VLAN 1 (their PVID=1), and Ports 11 and 12 send these packets on VLAN 2 (PVID=2). The third VLAN (PVID=3) is used by the server to transmit files that had been requested on VLAN 1 or 2 back to the computers. All computers that use the server will receive transmissions from it since they are all located on ports which are members of VLAN 3 (VID=3).
24-port NWay Ethernet Switch User’s Guide Ingress port - A port on a switch where packets are flowing into the switch and VLAN decisions must be made. Basically, the switch examines VLAN information in the packet header (if present) and decides whether to forward the packet.
24-port NWay Ethernet Switch User’s Guide When switches maintaining the same VLANs are 802.1Qcompliant, it is possible to use tagging. Tagging puts 802.1Q VLAN information into each packet header, enabling other 802.1Q-compliant switches that receive the packet to know how to treat it. Upon receiving a tagged packet, an 802.1Q-compliant switch can use the information in the packet header to maintain the integrity of VLANs, carry out priority forwarding, etc.
24-port NWay Ethernet Switch User’s Guide In the above example, step 4 is the key element. Because the packet has 802.1Q VLAN data encoded in it ’s header, the ingress port can make VLAN-based decisions about its delivery – whether server #2 is attached to a port that is a member of VLAN 2 and thus should the packet be delivered, the queuing priority to give to the packet, etc.
24-port NWay Ethernet Switch User’s Guide packets, it would tag its own PVID onto the packet and use this information to make forwarding decisions. Thus, the packets coming from the non-compliant device would automatically be placed on the ingress ports VLAN and could only communicate with other ports that are members of this VLAN. Broadcast Storms Broadcast storms are a common problem on today’s networks.
24-port NWay Ethernet Switch User’s Guide than routers. Also, many switches, including the DES3225G, have broadcast sensors and filters built into each port to further control broadcast storms. Segmenting Broadcast Domains VLANs can be used to segment broadcast domains. They do this by forwarding packets only to ports in the same VLAN. Thus, broadcast packets will only be forwarded to ports that are members of the same VLAN. Other parts of the network are effectively shielded.
24-port NWay Ethernet Switch User’s Guide threshold is set to 250pps. The thresholds and actions can easily be defined by using a normal SNMP management program or through the console interface.
24-port NWay Ethernet Switch User’s Guide 6 USING THE CONSOLE I NTERFACE Your 24-port NWay Ethernet Switch supports a console management interface that allows you to set up and control your Switch, either with an ordinary terminal (or terminal emulator), or over the network using the TCP/IP TELNET protocol. You can use this facility to perform many basic network management functions.
24-port NWay Ethernet Switch User’s Guide ♦ VT-100/ANSI compatible ♦ 9,600 baud ♦ 8 data bits ♦ No parity ♦ One stop bit ♦ No flow control You can also access the same functions over a TELNET interface. Once you have set an IP address for your Switch, you can use a TELNET program (in VT-100 compatible terminal mode) to access and control the Switch. All of the screens are for the most part identical, whether accessed from the console port or from a TELNET interface.
24-port NWay Ethernet Switch User’s Guide that you use the tab key and backspace key for moving around console. 4. Items in UPPERCASE are commands. Moving the selection to a command and pressing Enter will execute that command, e.g. APPLY, etc. Please note that the command APPLY only applies for the current session. Use Save Changes from the main menu for permanent changes. An asterisk “*” indicates a change has been made but won’t take effect until the Switch has been rebooted.
24-port NWay Ethernet Switch User’s Guide Figure 6-1. Initial screen, first time connecting to the Switch Note: There is no initial username or password. Leave the username and password fields blank. Press or Return> in the Username and Password fields.
24-port NWay Ethernet Switch User’s Guide Figure 6-2. Main Menu The first user automatically gets Administrator privileges (See Table 6-1). It is recommended to create at least one Administrator-level user for the Switch. User Accounts Management From the screen above, move the cursor to the User Accounts Management menu and press Enter, then the Users Accounts Management menu appears. 1.
24-port NWay Ethernet Switch User’s Guide Users. The main menus shown are the menus for the two types of users: The following table summarizes Administrator and Normal User privileges: Menu Administrat or Normal User Privilege Configuration Yes Yes, view only. Network Monitoring Yes Yes, view only. Trap Yes Yes, view only.
24-port NWay Ethernet Switch User’s Guide the settings will be immediately applied to the switching software in RAM, and will immediately take effect. Some settings, though, require you to restart the switch before they will take effect. Restarting the switch will erase all settings in RAM and reload them from the NV-RAM. Thus, it is necessary to save all settings to the NV-RAM before restarting the switch.
24-port NWay Ethernet Switch User’s Guide Logging Onto The Switch Console By Registered Users To log in once you have created a registered user, 1. Type in your username and press Enter. 2. Type in your password and press Enter. 3. The main menu screen will be displayed based on your Administrator or Normal User access level or privilege. Create/Modify User Accounts To add or change your user password: Choose Users Accounts Management from the main menu.
24-port NWay Ethernet Switch User’s Guide Figure 6-4. User Accounts Management menu 1. Choose Create/Modify User Accounts. The following screen appears: Figure 6-5. Add/Modify User Account screen 2. Type in your Username and press Enter. 3. If you are a new user, type in the Old Password and press Enter. 4. Type in the New Password you have chosen, and press Enter. Type in the same new password in the following field to verify that you have not mistyped it. 5.
24-port NWay Ethernet Switch User’s Guide This method can also be used by an Administrator-level user to change another user’s password. View/Delete User Accounts Access to the console, whether using the console port or via TELNET, is controlled using a user name and password. Up to three of these user names can be defined. The console interface will not let you delete the current loggedin user, however, in order to prevent accidentally deleting all of the users with Administrator privilege.
24-port NWay Ethernet Switch User’s Guide To delete your user password: 1. Toggle the Delete field of the user you wish to remove to Yes. 2. Press APPLY to let the user deletion take effect. Setting Up The Switch This section will help prepare the Switch user by describing the Configuration, Update Firmware and Configuration Files, Save Changes, and System Utilities menus and their respective sub-menus. Configuration Choose Configuration to access the first item on the DES3225G main menu.
24-port NWay Ethernet Switch User’s Guide Figure 6-7. Configuration menu You will need to change some settings to allow you to be able to manage the Switch from an SNMP-based Network Management System such as SNMP v1 or to be able to access the Switch using the TELNET protocol. See the next chapter for Web-based network management information. Configure IP Address The Switch needs to have an IP address assigned to it so that an In-Band network management system or TELNET client can find it on the network.
24-port NWay Ethernet Switch User’s Guide Figure 6-8. IP Configuration screen The fields listed under the Current Settings heading are those that are currently being used by the switch. Those fields listed under the Restart Settings heading are those which will be used after the switch has been Reset. Fields that can be set include: ♦ BOOTP Determines whether the Switch should send out a BOOTP broadcast request when it is powered up.
24-port NWay Ethernet Switch User’s Guide ♦ Default Gateway IP address that determines where frames with a destination outside the current subnet should be sent. This is usually the address of a router or a host acting as an IP gateway. If your network is not part of an internetwork, or you do not want the Switch to be accessible outside your local network, you can leave this field unchanged.
24-port NWay Ethernet Switch User’s Guide Settings on Restart: ♦ Console Timeout This setting for the restart of the console is 15 mins, 30 mins, 45 mins, 60 mins, or Never. ♦ Serial Port Determines whether the serial port should be used for out-of-band (SLIP) management or for console management, starting from the next time the Switch is restarted. In this field, you can toggle between SLIP or console port type settings.
24-port NWay Ethernet Switch User’s Guide Figure 6-10. Switch Configuration screen The fields you can set are: ♦ System Name Corresponds to the SNMP MIB II variable system.sysName , and is used to give a name to the Switch for administrative purposes. The Switch’s fully qualified domain name is often used, provided a name has been assigned. ♦ System Location Corresponds to the SNMP MIB II variable system.sysLocation , and is used to indicate the physical location of the Switch for administrative purposes.
24-port NWay Ethernet Switch User’s Guide Advanced Settings The Configure Advanced Switch Features screen allows you to set an expiration time for MAC address entries and enable or disable auto-partitioning on all ports. Click on ADVANCED SETTINGS on the Switch Configuration window to access the Configure Advanced Switch Features screen: Figure 6-11.
24-port NWay Ethernet Switch User’s Guide Line blocking occurs when a packet originating on Port 1, for instance, needs to be forwarded to Ports 2 and 3. If Port 2 is occupied (causing the packet to be held in memory until the port is free), the packet destined for Port 3 will also be delayed, even though the port may be free. Cumulatively, these delays can have a noticeable effect on overall network performance.
24-port NWay Ethernet Switch User’s Guide Items in the above window are defined as follows: ♦ Port Specifies the port (1-22,all) that will be configured. When all is chosen, the settings you configure will be applied to all UTP ports. ♦ State Enables or Disables the port. This amounts to turning the port on or off. ♦ Speed/Duplex Selects the desired Speed and Duplex fort the port. Possible settings include: Auto, 100M/Full, 100M/Half, 10M/Full, or 10M/Half.
24-port NWay Ethernet Switch User’s Guide latency can produce distorted sounds and images. Packets in the low priority queue will not be processed unless the High priority queue is empty. Setting the port priority to high will deliver all packets arriving at the port to the high priority queue, a low setting will send them all to the low priority queue. The Normal settings causes the port to examine the packet for an IEEE 802.1p/Q priority tag.
24-port NWay Ethernet Switch User’s Guide ♦ Broadcast Storm Rising Threshold This setting defines a ceiling for the number of broadcast packets per second on this port. Once met, the Broadcast Storm Rising Action (above) will be triggered. The assigned number should be high enough to allow normal broadcast packets (which comprise significant traffic) to be let through, while being low enough so that broadcast storms can be detected early.
24-port NWay Ethernet Switch User’s Guide traffic) to be let through as early as possible, while being low enough so that broadcast storms are completely eliminated. Press CTRL+S to let the changes take effect. If you wish these changes to be the default for the switch, return to the main menu and choose Save Changes. STP Port State (whether the Spanning Tree Protocol is enabled or disabled on this port) and Status reflect the current conditions of the port. They are read-only fields and cannot be changed.
24-port NWay Ethernet Switch User’s Guide Figure 6-13. Slot1-Port Configuration screen ♦ Port field specifies either Slot1-TP1, the Port 1x port or Slot1-TP2, the Port 2x port on the module. For single-port modules, only Slot1-TP1 will be available. ♦ State Enables or Disables this port. ♦ Speed/Duplex Selects the desired Speed and Duplex fort the port. Possible settings include: Auto, 100M/Full, 100M/Half, 10M/Full, or 10M/Half. Choosing Auto enables NWay auto-configuration on the port.
24-port NWay Ethernet Switch User’s Guide ♦ Port Lock When locked, automatic learning for all stations connected to this port will stop and entries in the Forwarding Table for all devices residing on this port will age out. The only traffic this port will allow is traffic from machines whose MAC address is manually entered in the Static Forwarding Table.
24-port NWay Ethernet Switch User’s Guide STP Port State and Status reflect the current conditions of the port. They are read-only fields and cannot be changed. Configure Slot2 Module This screen allows you to change the port state of the optional 1000BASE-SX module in slot 2. This is useful in the case when you would like to partition a port due to excessive collision, or for observation, device repair, or security reasons.
24-port NWay Ethernet Switch User’s Guide ♦ Speed/Duplex This field is read-only since the Gigabit Ethernet module must always be set to 1000Mbps, full-duplex. ♦ Flow Control Enables or disables IEEE 802.1x fullduplex (only) flow control on this port. See Flow Control in the Configure Ports section above for a more detailed explanation. ♦ Priority selects Normal, High or Low. See Priority in the Configure Ports section above for a more detailed explanation.
24-port NWay Ethernet Switch User’s Guide configured to Do Nothing, Forward or Forward and Trap. See Broadcast Storm Falling Action in the Configure Ports section of this manual for a more detailed explanation. ♦ Broadcast Storm Falling Threshold This setting defines the number of broadcast packets per second on this port which will trigger the Broadcast Storm Falling Action (above). See Broadcast Storm Falling Threshold in the Configure Ports section of this manual for a more detailed explanation.
24-port NWay Ethernet Switch User’s Guide Figure 6-15. Configure Port Mirroring screen To configure a mirror port, select the port from where you want to copy frames in the Source Port field. Then select the port which receives the copies from the source port in the Target Port field. The target port is where you will connect a monitoring/troubleshooting device such as a sniffer or an RMON probe. Note: You cannot mirror a fast port onto a slower port.
24-port NWay Ethernet Switch User’s Guide Parameters allow you to change the behind the scene parameters of the Spanning Tree Algorithm at the bridge level. The parameters for this section have been fully explained in Chapter 5’s Switch Management, see STA Operation Levels: On the Bridge level, and User-Changeable Parameters. It is recommended that you read these sections, as well as the introductory section in the same chapter entitled Spanning Tree Algorithm before changing any of the parameters.
24-port NWay Ethernet Switch User’s Guide Figure 6-17. STP Parameters Setting screen The information on the screen is described as follows: ♦ Spanning Tree Protocol Enables or disables the Spanning Tree Protocol. ♦ Time Since Topology Changes (sec) Read-only object displays the last time changes were made to the network topology. These changes usually occur when backup paths are activated due to primary path failures.
24-port NWay Ethernet Switch User’s Guide ♦ Root Cost Read-only object displays the cost for the path between the switch and the root bridge. If the switch is the root bridge, then the root cost is zero. ♦ Root port Read-only object identifies the port (on the bridge) that offers the least path cost from the bridge to the root bridge. In the event of a network loop, data packets will pass through the root port.
24-port NWay Ethernet Switch User’s Guide ♦ Max Age (6-40 sec) Maximum Age is a read-write object that can be set from 6 to 40 seconds. At the end of the Maximum Age, if a BPDU has still not been received from the Root ridge, your Switch will start sending its own BPDU to all other switches for permission to become the Root Bridge. If it turns out that your Switch has the lowest Bridge Identifier, it will become the Root Bridge.
24-port NWay Ethernet Switch User’s Guide STP Port Contro To change the parameters on individual ports: 1. Choose Configure Spanning Tree Protocol from the Configuration menu. 2. Choose STP Port Control from the Configure Spanning Tree Protocol menu. The following screen appears: Figure 6-18. Spanning Tree Protocol Custom Settings screen Items in the above window are described as follows: ♦ STP State Enables or disables the Spanning Tree Protocol on a particular port.
24-port NWay Ethernet Switch User’s Guide more chance the bridge has of becoming the root port. Zero is the highest priority. Configure Filtering and Forwarding Table When a packet hits the Switch, it looks in the filtering and forwarding table to decide what to do with the packet; either to filter it off the network, or to forward it through the port on which its destination lies. Dynamic Filtering and Static Filtering are among the two important features of the Custom Filtering Table.
24-port NWay Ethernet Switch User’s Guide Figure 6-19. Configure Filtering and Forwarding table screen The following fields at the top of the screen can be set: ♦ Lock Address Table (Stops Auto-Learning) Mostly used for security purposes, when the forwarding table is locked the Switch will no longer learn the MAC addresses for new hosts.
24-port NWay Ethernet Switch User’s Guide ♦ MAC Address Aging Enter the desired MAC address age-out time in this field (10 to 9999 seconds). Please refer to the Packet Forwarding section of the Switch Management Concepts chapter of this manual for more detailed information. Configure Static Forwarding Table The Static Forwarding Table displays a list of manually defined static MAC address entries.
24-port NWay Ethernet Switch User’s Guide device through a specific port, even after long periods of network inactivity or during times of network congestion. ♦ Action Choose to Add or Remove an entry from the table. ♦ MAC Address a total of ten destination addresses per page will be seen. The Switch can hold up to 256 entries. This is the MAC address of the device that you are creating a permanent forwarding address for.
24-port NWay Ethernet Switch User’s Guide Figure 6-21. Static Filtering Table screen To make a change to the Custom Filtering Table, choose Add or Remove in the Action field. Then enter the MAC Address and press APPLY. Configure Static Multicast Filtering Multicast filtering allows you to block or forward traffic over each port for one multicast group. To access the Custom Multicast Filtering Table, select Configure Filtering and Forwarding Table from the Configuration menu.
24-port NWay Ethernet Switch User’s Guide Figure 6-22. Static Multicast Filtering Tabl screen To make a change to the Static Filtering Table, choose Add or Remove in the Action field. Then enter the MAC Address, and press for the corresponding Port number in one of the five fields: 1-6, 7-14, 15-22, S1, and S2. Press APPLY to put the change into effect. Configure IGMP Filtering Internet Group Management Protocol (IGMP) allows Multicasting on your network.
24-port NWay Ethernet Switch User’s Guide must also define which 802.1Q VLANs (if present) can send and receive IGMP and Multicast packets. To access the IGMP Configuration screen, choose Configure IGMP Filtering from the Configuration menu. The follow screen appears: Figure 6-23.
24-port NWay Ethernet Switch User’s Guide IGMP Snooping, which enables the switch to read IGMP packets being forwarded through the switch in order to obtain forwarding information from them (learn which ports contain Multicast members). ♦ Configure 802.1Q IGMP The window which opens after this option is chosen allows IGMP to operate in conjunction with IEEE 802.1Q VLANs .
24-port NWay Ethernet Switch User’s Guide The above window is used to specify an agent to interface between IGMP and VLAN. The agents are assigned to a VLAN and allow IGMP query and report packets to be present on the given VLAN. Only 12 agents can exist on the switch at any one time. Items in the above window are described below: ♦ Action Adds/Removes an entry (agent) from the table. ♦ VID The VLAN number that you wish to create an agent for. ♦ Apply Adds the agent to the table.
24-port NWay Ethernet Switch User’s Guide Items in the above window are defined as follows: ♦ VLAN ID This is the VID number for the VLAN that has an agent attached to it which enables IGMP packets to be sent and received. ♦ Age-out Timer If no IGMP query packet has arrived at the switch before this timer has expired, the switch will become the IGMP host for this VLAN. ♦ IGMP Status Activates/deactivates the agent on this VLAN.
24-port NWay Ethernet Switch User’s Guide a particular VLAN mode - either port-based 802.1Q or MACbased, or to disable VLANs on the switch. Please note that the switch can only support either port-based VLANs or MAC-based VLANs at any given time; it cannot support both types of VLANs at the same time. You can also access two additional screens, Configure MAC-Base VLAN and Configure 802.1Q VLAN. Choose Configure VLAN on the Configuration menu to access the VLAN Configuration menu: Figure 6-24.
24-port NWay Ethernet Switch User’s Guide the switch will implement the type of VLANs chosen here. ♦ Management VID This is the VLAN that will be used for management packets. Make sure the switch port that the network management station is connected to is a member of this 802.1Q VLAN (VID). This should be the first VLAN you create, otherwise, you may not be able to communicate with the switch.
24-port NWay Ethernet Switch User’s Guide Figure 6-26. Create/Remove a MAC-based VLAN screen The fields you can set are: ♦ Action Adds or Removes a MAC-based VLAN. ♦ VLAN Description Enter the name or number of the VLAN. This will be the identifier for this VLAN. Press APPLY to create/remove the designated MAC-Based VLAN. Current MAC-based VLAN and Number of MAC address members reflect the current conditions. They are read-only fields and cannot be changed.
24-port NWay Ethernet Switch User’s Guide Figure 6-27. Configure a MAC-based VLAN screen To configure a VLAN, highlight the desired entry on the screen above and press ENTER. The following MAC-Based VLAN---MAC Assignment screen appears: Figure 6-28.
24-port NWay Ethernet Switch User’s Guide The fields you can set are: ♦ Action Select the desired action by toggling between Add and Remove. ♦ MAC Address The MAC address of the VLAN member being added or removed. Please note that the Status field for the MAC address you have entered may read Not-Apply. Once the switch is restarted in MAC-based VLAN mode, the MAC-addresses will be applied, meaning that the VLAN is active.
24-port NWay Ethernet Switch User’s Guide 2. Define which ports will be active members of the VLAN. A port can transmit packets onto only one VLAN. It can receive packets (be a passive member) on many VLANs. Active VLANs are designations are defined by assigning Port VLAN ID numbers (PVIDs) in the Configure Port VLAN ID screen. 3. Define the VLAN itself and which ports will be members (able to receive packets from a port that has this PVID number).
24-port NWay Ethernet Switch User’s Guide Figure 6-30. Ingress Filtering screen This screen allows you Enable/disable Ingress filtering for each port. When a packet arrives at the port and Ingress filtering is enabled, the port will check the VLAN ID number of the packet, and it’s own VID’s. If there is a match, the port will receive the packet. If the packet doesn’t have a VLAN tag or the port is not a member of the VLAN for which the packet is tagged, the packet will be discarded.
24-port NWay Ethernet Switch User’s Guide Figure 6-31. Port VLAN assignment screen This screen allows you to set a Port VLAN ID number (PVID) for each port. Press CTRL+S to let the changes take effect. Choose Configure Static VLAN Entry to access the third item on the 802.1Q VLAN Configuration menu. The following 802.
24-port NWay Ethernet Switch User’s Guide Figure 6-32. 802.1Q Static VLAN Settings screen The fields you can set are: ♦ VID Enter a VLAN ID from 2 to 2048. This is the VLAN that will be defined on this screen. ♦ VLAN Name Description of the VLAN. ♦ Tag/Untag Toggle between “T” for tag and “U” for untag for each port. ♦ Egress Position the cursor over the dash ““ representing the appropriate port number and press to select “E” for Egress, or leave the dash “-“.
24-port NWay Ethernet Switch User’s Guide VLAN Name, and Tag/Untag, Egress (membership) status for all ports. Configure Trunk Ports on the switch can be grouped together in a single logical port called a trunk. This is discussed in detail in the Port Trunking section of the Switch Management Concepts chapter of this manual. To setup a trunk group, choose Configure Trunk in the Configuration menu. The following screen appears: Figure 6-33.
24-port NWay Ethernet Switch User’s Guide ♦ Width Select between 2 to 8 ports in the first two entries for this field. The number of ports defined here start from the master port and count up. Thus, in the example pictured above containing a width of 5 ports in the first trunk, the ports in the trunk group will include ports 7 (master), 8, 9, 10 and 11. The third entry (used for 2-port front-panel modules) has a permanent setting of 2 ports. ♦ Group name Enter the desired group name.
24-port NWay Ethernet Switch User’s Guide Figure 6-34. Update Firmware and Configuration Files screen After making your changes in the fields above, press RESET SWITCH TO START UPDATE to initiate the update sequence. The fields you can set are: ♦ TFTP Server Address The IP address of the TFTP server where the runtime (switching software) or configuration file is located. This entry is used only if the Firmware Update is set to Enabled.
24-port NWay Ethernet Switch User’s Guide is reset (rebooted). The configuration file is explained in detail in the Sample Configuration File Appendix. ♦ Config File Name The complete path and filename on the TFTP server for configuration file to be used. System Utilities The Utilities menu offers three system utility options, Ping Test, Save settings to TFTP Server, and Save Switch History to TFTP Server. The following window will be opened: Figure 6-35.
24-port NWay Ethernet Switch User’s Guide Figure 6-36. Ping Test screen After filling in the fields above, press START to initiate the Ping test. The fields you can set are: ♦ Destination IP Address The IP address of the device to be Pinged. ♦ Repetitions Amount of times the Switch should send the Ping (1-255). If zero is chosen, the Switch will continue Pinging indefinitely. In the lower part of the Ping Test screen, you can view the Ping status, including Result, Reply, Time out, and Unreachable.
24-port NWay Ethernet Switch User’s Guide Save Settings to TFTP Server Choose Save Settings to TFTP Server from the Utilities menu (under System Utilities on the main menu) to access the following screen: Figure 6-37. Upload Configuration File screen The fields you can set are: ♦ Server IP Address The IP address of the TFTP server where you wish to save the settings for the switch. ♦ File Name The complete path and filename for the file. Press START to begin the saving procedure.
24-port NWay Ethernet Switch User’s Guide Save Switch History to TFTP Server Choose Save Switch History to TFTP Server from the Utilities menu (under System Utilities on the main menu) to access the following screen: Figure 6-38. Upload Switch History File screen The fields you can set are: ♦ Server IP Address The IP address of the TFTP server where the switch history file will be located. ♦ File Name The complete path and filename on the TFTP server for the file. Press START to begin the file save.
24-port NWay Ethernet Switch User’s Guide SNMP Manager Configuration The Switch sends out SNMP traps to network management stations whenever certain exceptional events occur, such as when the Switch is turned on or when a system reset occurs. The Switch allows traps to be routed to up to four different network management hosts. For a detail list of Trap Types used for this Switch, see Chapter 5, Switch Management Concepts, Traps section.
24-port NWay Ethernet Switch User’s Guide Figure 6-39. SNMP Manager Configuration screen The following SNMP Manager and Configuration parameters can be set: Trap Manager ♦ SNMP Community String The community string that will be included on SNMP packets sent to and from the switch. Any station not privy to this community will not receive the packet.
24-port NWay Ethernet Switch User’s Guide Switch Monitoring The switch uses an SNMP agent which monitors different aspects of network traffic. The SNMP agent keeps counters and statistics on the operation of the switch itself, and on each port on the switch. The statistics obtained can be used to monitor the conditions and general efficiency of the Switch. Network Monitoring The Network Monitoring menu offers four items, Traffic Statistics, Browse Address Table, Browse IGMP Status, and Switch History.
24-port NWay Ethernet Switch User’s Guide The first item on this menu permits you to access four different tables that observe the condition of each individual port. Traffic Statistics To display the Traffic Statistics menu, choose the first item on the Network Monitoring menu. The following menu appears: Figure 6-41. Traffic Statistics menu Statistics Overvie To access the first item on the Traffic Statistics menu, choose Statistics Overview.
24-port NWay Ethernet Switch User’s Guide Figure 6-42. Statistics Overview screen Select the desired increment setting in the Update Interval field: 2 sec, 5 sec, 15 sec, 30 sec, 1 min, or Suspend. The statistic counters displayed are defined as follows: ♦ TX/sec The number of good bytes sent from the respective port per second. ♦ RX/sec The number of good bytes received per second. This also includes local and dropped packets. ♦ %Util.
24-port NWay Ethernet Switch User’s Guide Port Traffic Statistics To access the second item on the Traffic Statistics menu, choose Port Traffic Statistics. The following table appears: Figure 6-43. Port Traffic Statistics screen Select the desired setting in the Ports field: 1 to 4, 5 to 8, 9 to 12 , 13 to 16 , 17 to 20 , 21-S1P2, or Slot 2 and the desired increment setting in the Update Interval field: 2 sec, 5 sec, 15 sec, 30 sec, 1 min, or Suspend.
24-port NWay Ethernet Switch User’s Guide ♦ Bytes Recv. The number of good bytes received. This also includes local and dropped packets. ♦ Bytes Sent The number of good bytes sent from the respective port. ♦ Frames Recv. The number of good frames received. This also includes local and dropped packets. ♦ Frames Sent The number of good frames sent from the respective port. ♦ Total Bytes Recv. The number of bytes received, good and bad. ♦ Total Frames Recv. good and bad.
24-port NWay Ethernet Switch User’s Guide Figure 6-44. Port Packet Error Statistics tabl Select the desired setting in the Ports field: 1 to 4, 5 to 8, 9 to 12 , 13 to 16 , 17 to 20 , 21-S1P2, or Slot 2 and the desired increment setting in the Polling Interval field: 2 sec, 5 sec, 15 sec, 30 sec, 1 min, or Suspend. The statistic counters displayed are defined as follows: ♦ Speed If the link is up, the speed and duplex status will be displayed; if the link is down “-” will be displayed.
24-port NWay Ethernet Switch User’s Guide ♦ Jabber The number of frames with length more than 1518 bytes and with CRC error or misalignment (bad framing). ♦ Late Collision The number of collisions that occur at th or after the 64 byte (octet) in the frame. ♦ Mac Rx Error The number of frames with received MAC Errors. ♦ Dropped Frames The number of frames which are dropped by this port since the last Switch reboot.
24-port NWay Ethernet Switch User’s Guide Figure 6-45. Packet Analysis Statistics tabl Select the desired setting in the Ports field: 1 to 4, 5 to 8, 9 to 12 , 13 to 16 , 17 to 20 , 21-S1P2, or Slot 2 and the desired increment setting in the Update Interval field: 2 sec, 5 sec, 15 sec, 30 sec, 1 min, or Suspend. Press CLEAR to reset the counters.
24-port NWay Ethernet Switch User’s Guide ♦ TX Octets The number of good bytes sent from the respective port. ♦ RX Octets The number of good bytes received. This also includes local and dropped packets. ♦ Total RX The number of bytes received, good and bad. ♦ Unicast RX/Unicast TX The number of good unicast frames received and sent. This includes dropped unicast packets. ♦ Multicast RX/Multicast TX The number of good multicast frames received and sent. This includes local and dropped multicast packets.
24-port NWay Ethernet Switch User’s Guide Figure 6-46. Browse Address Tabl To browse by MAC address, select MAC address in the Search by field, enter the desired MAC address in the next field, and then press FIND. To browse by port number, select Port in the Search by field, enter the desired port in the next field, and then press FIND. The lower part of the screen is a read-only Browse Address Table that contains Port, MAC Address and Learned status of each entry.
24-port NWay Ethernet Switch User’s Guide specific devices based on the IGMP messages sent from the device to the router or vice versa. To display the IP Multicast Information screen, choose Network Monitoring from the main menu and then choose Browse IGMP Status. The following screen appears: Figure 6-47. IP Multicast Information screen This screen displays the number of IGMP queries and reports for each active IP multicast group detected by the Switch.
24-port NWay Ethernet Switch User’s Guide ♦ Multicast Group The Multicast IP address of the Multicast group being displayed. ♦ MAC Address The Multicast MAC address of the multicast group being displayed. ♦ Queries(TX) The number of IGMP requests sent by the switch. ♦ Queries(RX) The number of IGMP requests that have arrived at a switch port. ♦ Reports The number of notifications sent from each station to the IGMP host, signifying that the station is still (or wants to be) part of a multicast group.
24-port NWay Ethernet Switch User’s Guide Figure 6-48. Switch History screen The switch history entries are listed sequentially from the last time the Switch was rebooted. Use the following keys to move around the screen above: N – Page down, P – Page up, B – Begin, E – End, and C – Clear Log. CTRL+R will refresh the screen.
24-port NWay Ethernet Switch User’s Guide Restart System To perform a system reset, choose Restart System from the main menu. Please note there is no confirmation query before the system is rebooted. Figure 6-49. Restart System screen Factory Reset Before performing a factory reset, be absolutely certain that this is what you want to do.
24-port NWay Ethernet Switch User’s Guide these three procedures are performed, your factory reset is complete. Choose Factory Reset from the main menu. The following screen appears: Figure 6-50. Factory Reset Logout To exit the console program, choose Logout from the main menu. Make sure you have performed a Save Changes if you have made changes to the settings and wish them to become defaults for the switch. After logging out, you will be returned to the opening login screen.
24-port NWay Ethernet Switch User’s Guide 7 WEB -BASED NETWORK MANAGEMENT Introduction The DES-3225G offers an embedded Web-based (HTML) interface allowing users to manage the switch from anywhere on the network through a standard browser such as Netscape Navigator/Communicator or Microsoft Internet Explorer. The Web browser acts as a universal access tool and can communicate directly with the Switch using the HTTP protocol. Your browser screen may vary with the screen shots (pictures) in this guide.
24-port NWay Ethernet Switch User’s Guide Getting Started The first step in getting started in using web -based management for your Switch is to secure a browser. A Web browser is a program which allows a person to read hypertext, for example, Netscape Navigator or Microsoft Internet Explorer. Follow the installation instructions for the browser. The second and last step is to configure the IP interface of the Switch.
24-port NWay Ethernet Switch User’s Guide The top of the main page has a button labeled Click Here to Load Panel: Clicking on this button causes an interactive view of the Switch’s front panel to be shown in the top portion of the window. Clicking on one of the Ports opens a configuration window for that particular port. The main page contains a list of buttons along the top of it labeled: Configure Switch, Configure Management, Monitor, Reset and Update, Save Changes, and Help.
24-port NWay Ethernet Switch User’s Guide IP Settings You can change the IP Address, Subnet Mask, and Default Gateway on the Switch. If you are not using BootP, enter the IP Address, Subnet Mask, and Default Gateway of the Switch. If you enable BOOTP, you do not need to configure any IP parameters because a BOOTP server automatically assigns IP configuration parameters to the switch. Click Apply to activate the new settings.
24-port NWay Ethernet Switch User’s Guide ♦ MAC Address The Ethernet address for the device. Also known as the physical address ♦ IP Address The host address for the device on the TCP/IP network. ♦ Subnet Mask The address mask that controls subnetting on your TCP/IP network. ♦ Default Gateway The IP address of the device, usually a router, that handles connections to other subnets and/or other TCP/IP networks.
24-port NWay Ethernet Switch User’s Guide 1. Enable or disable the port. If you choose Disabled, devices connected to that port cannot use the Switch, and the Switch purges their addresses from its address table after the MAC address aging time elapses. The Switch won't purge addresses if you define them as permanent entries in the MAC Forwarding Table. 2. Configure the Speed/Duplex setting for the port.
24-port NWay Ethernet Switch User’s Guide 4. Configure the Priority Queues setting for packets passing through this port, using IEEE 802.1 tagging. Select Low, High or Default. If the network is congested, the switch handles packets with a higher priority before those with lower priority. 5. Configure the Port Lock setting to prevent the port from learning MAC addresses of new hosts.
24-port NWay Ethernet Switch User’s Guide Port Mirroring The Switch allows you to copy frames transmitted and received on a port and redirect the copies to another port. You can attach a monitoring device to the mirrored port, such as a sniffer or an RMON probe, to view details about the packets passing through the first port. To configure a mirror port, select Enabled from the Port mirroring in pull-down list. In the next field, select the Source Port from where you want to copy frames.
24-port NWay Ethernet Switch User’s Guide can cause throughput problems. The port you are copying frames from should always support an equal or lower speed than the port to which you are sending the copies. Also, the target port for the mirroring cannot be a member of a trunk group.
24-port NWay Ethernet Switch User’s Guide ♦ Switch Name A user-assigned name for the Switch. ♦ Location A user-assigned description for the physical location of the Switch. ♦ Contact Name of the person to contact should there be any problems or questions with the system. You may also want to include a phone number or extension. ♦ Description A description of the Switch type. ♦ MAC Address The Ethernet address for the device. ♦ PROM version Version number for the firmware chip.
24-port NWay Ethernet Switch User’s Guide Advanced The first setting allows you to enable or disable port autopartitioning by the Port Auto-Partition Capability on All ports function. If you enable auto-partitioning on all ports, when more than 16 collisions occur while a port is transmitting data, the port automatically stops transmissions.
24-port NWay Ethernet Switch User’s Guide ♦ Head of Line (HOL) Blocking Prevention This option prevents forwarding a packet to a port where an excess of packets are queued up. Note that when a multicast packet or a packet with an unknown destination address needs to be forwarded to several ports, and if some of them are “blocking,” the packet will not be discarded, rather it will be forwarded only to the ports that are not “blocking.
24-port NWay Ethernet Switch User’s Guide This window allows you to stop or start address learning, use an address look-up mode, and select an age-out time of the MAC address in the selected address table. Click Apply to let your changes take effect. The following fields above can be set: ♦ Lock Address Table (Stops learning new address) Mostly used for security purposes, when the forwarding table is locked the Switch will no longer learn the MAC addresses for new hosts.
24-port NWay Ethernet Switch User’s Guide Permanent Address Table MAC forwarding allows the Switch to permanently forward outbound traffic to specific destination MAC addresses over a specified port. You can also use this feature to restrict inbound traffic based on source MAC addresses.
24-port NWay Ethernet Switch User’s Guide To use the MAC forwarding function, check either the Add/Modify to the table option button or the Delete from the table option button, enter the MAC address of the device to which the specified port permanently forwards traffic in the Destination MAC Address field, and enter the port number that permanently forwards traffic from the specified device in the Destination Port Number field. Then click Apply.
24-port NWay Ethernet Switch User’s Guide device, regardless of the device's network activity or current network congestion. Permanent Multicast Filtering Permanent multicast filtering allows the Switch to decide which ports should receive multicast traffic from a specific multicast MAC address.
24-port NWay Ethernet Switch User’s Guide To use the permanent multicast filtering function, check either the Add to the table option button or the Delete from the table option button, enter the MAC address of the device allowed to send traffic in the MAC Address field, and then click Apply. The information above is described as follows: ♦ Add to the table/Delete from the table Choose one of the desired options to add or delete an entry from the Permanent Multicast Filtering Table.
24-port NWay Ethernet Switch User’s Guide Multicast Forwarding Table Multicast filtering blocks or forwards traffic over each port for one multicast group. You can configure each port on the Switch to forward traffic for the specified multicast group.
24-port NWay Ethernet Switch User’s Guide To Add/Modify to the table or Delete from the table, check the desired option button, enter the MAC address in the MAC Address field, select Forward or Block for each port, deciding whether that port transmits or blocks traffic for the specified multicast group. Click Apply to let the changes take effect.
24-port NWay Ethernet Switch User’s Guide Spanning Tree The Switch supports 801.2d Spanning Tree Protocol, which allows you to create alternative paths (with multiple switches or other types of bridges) in your network. See the Spanning Tree Algorithm section of the “Switch Management” chapter for a detailed explanation.
24-port NWay Ethernet Switch User’s Guide ♦ Spanning Tree Protocol Status Spanning Tree Protocol setting. Displays the current ♦ Time Since Last Topology Change Displays the last time changes were made to the network topology. These changes usually occur when backup paths are activated due to primary path failures. ♦ Topology Change Count Displays the number of times (since the current management session with the device was started) changes were made to the network topology.
24-port NWay Ethernet Switch User’s Guide ♦ Switch Priority This is a read-only object that containing values from 0 to 65535. This value can be set in the Bridge Priority field and is the priority number of the bridge. The value is used in conjunction with the bridge MAC address to set the bridge ID, which in turn is used when determining the root bridge of a multibridged network. The root bridge is responsible for processing data packets when network loops occur.
24-port NWay Ethernet Switch User’s Guide STP Parameter & Port Settings To configure Spanning Tree Protocol functions for the Switch or individual ports, enter the desired information in the fields on this screen (see the descriptions below for assistance) and then click Apply. The information on the screen is described as follows: ♦ Spanning Tree Protocol (STP) for all ports is This option offers Disabled or Enabled to implement the Spanning Tree Protocol. ♦ Bridge Priority: (0 ..
24-port NWay Ethernet Switch User’s Guide Bridge to tell all other switches that it is indeed the Root Bridge. If you set a Hello Time for your Switch, and it is not the Root Bridge, the set Hello Time will be used if and when your Switch becomes the Root Bridge. ♦ Forward Delay: (4 . . 30 sec) The Forward Delay can be from 4 to 30 seconds. This is the time any port on the Switch spends in the listening state while moving from the blocking state to the forwarding state. ♦ Maximum Age: (6 . .
24-port NWay Ethernet Switch User’s Guide IGMP Filtering IGMP Settings Internet Group Management Protocol (IGMP) snooping allows the Switch to recognize IGMP queries and reports sent between network stations or devices and an IGMP host. When enabled for IGMP snooping, the Switch can open or close a port to a specific device based on IGMP messages passing through the switch.
24-port NWay Ethernet Switch User’s Guide ♦ IP Multicast Filtering Age-out Timer When this timer elapses, the switch itself will try to become the IGMP host. ♦ IP Multicast Filtering (IGMP Snooping) This setting allows the switch to learn the IGMP spanning tree and intelligently forward packets (as opposed to broadcasting all packets). IGMP snooping is automatically enabled/disabled with this setting. Configure 802.
24-port NWay Ethernet Switch User’s Guide To Add/Modify to the table or Delete from the table, check the desired option button, enter a value from 1 to 2047 in the VLAN ID field, enter a value between 30 and 999 in the Age-out Timer field, enable or disable the IGMP Status control, and then click Apply. The information above is described as follows: ♦ Add/Modify to the table Allows you to create or edit an entry for the table. ♦ Delete from the table Allows you to delete an IGMP entry from the table.
24-port NWay Ethernet Switch User’s Guide VLAN VLAN mode allows you to construct a port group as well as to reduce traffic. Broadcast and multicast packets are limited to members of the VLAN. Configure VLAN Mode To use the VLAN mode, select MAC Base or 802.1Q under Restart VLAN Mode--otherwise, leave the setting at Disabled. Then specify the VLAN ID number in the SNMP VLAN (1.. 2047) field and click Apply.
24-port NWay Ethernet Switch User’s Guide Configure MAC-Based VLA Click the pointer icon on the right hand side to access the Add/Delete MAC-Based VLAN window: 156 Web-Based Network Management
24-port NWay Ethernet Switch User’s Guide To add or delete a MAC-based VLAN table entry, check the desired option in the first two lines of the window above, enter the Current MAC-based VLAN in the field offered, and click Apply. The MAC-based VLAN description must be the same as that used in the port member group to enable the VLAN function.
24-port NWay Ethernet Switch User’s Guide Configure 802.1Q VLA Use this window to assign a default VLAN ID for each desired port. Click Apply to let the settings take effect.
24-port NWay Ethernet Switch User’s Guide Use this window to enable or disable the ingress filtering check for each desired port. Ingress filtering means that a receiving port will check to see if it is a member of the VLAN ID in the packet before forwarding the packet. Click Apply to let the settings take effect.
24-port NWay Ethernet Switch User’s Guide Click the pointer icon on the right hand side to access the Configure 802.
24-port NWay Ethernet Switch User’s Guide To configure an 802.1Q VLAN entry, check the desired option in the first two lines of the screen above and enter a VID number and Description. Next, check Tag option for each member port you wish to be a Tagging port. In the bottom two lines, None should be checked if you don’t want a port to belong to the VLAN. Otherwise, check Egress to statically set a port to belong to a VLAN. Click Apply to let the changes take effect.
24-port NWay Ethernet Switch User’s Guide ♦ Trunk Ports The continuous number of ports that will be members of the trunk group. ♦ Master The Master port for the trunk group. All configuration settings changes made to the master port will automatically be made to the other ports in the trunk. ♦ Status Enables/disables the trunk group. Configure Management This second category includes: Traps and Community Strings, User Accounts, and Console Port Settings.
24-port NWay Ethernet Switch User’s Guide Strings and Trap Receiving Stations sections--you may enter up to four entries in each section. A trap receiving station is a device that constantly runs a network management application to receive and store traps. Then click Apply to put the settings into effect. The Community Strings information is described as follows: ♦ SNMP Community String A user-defined SNMP community name.
24-port NWay Ethernet Switch User’s Guide User Accounts Click the pointer icon on the right hand side to access the main User Accounts window: 164 Web-Based Network Management
24-port NWay Ethernet Switch User’s Guide To add or delete a User Account, fill in the appropriate information in the User Name, Old Password, New Password, and Confirm New Password fields. Then select the desired access, Normal User or Administrator in the Access Level control and click Apply. Console Port Settings This window allows you to select the protocol for communicating through the console port, Console or SLIP, in the Port Setting field. Use SLIP for out-ofband management.
24-port NWay Ethernet Switch User’s Guide The default serial port settings are: Baud Rate=9600 Data Bits=8 Flow Control=X on/X off Parity=None Stop Bits=1 The information is described as follows: ♦ Port Settings The options for the current console port setting are Console or SLIP. ♦ Console Time Out Choose Never, 15 minutes, 30 minutes, 45 minutes, or 60 minutes for the desired refresh setting. ♦ Baud Rate Determines the serial port bit rate that will be used the next time the Switch is restarted.
24-port NWay Ethernet Switch User’s Guide Switch Overview The information is described as follows: ♦ Update Interval Choose the desired setting: 2 seconds, 5 seconds, 15 seconds, 30 seconds, 60 seconds or Suspend. ♦ Port The selected port to be monitored. ♦ TX frames/sec Counts the total number of frames transmitted from a selected port per second since the Switch was last rebooted. ♦ RX frames/sec Counts all valid frames received on the port per second since the Switch was last rebooted.
24-port NWay Ethernet Switch User’s Guide For example, when a 10 Mbps port is relaying packets at 5 Mbps, the utilization is 50%. Port Statistics The port statistics shown by default are those for the port you last configured. Once in the Port Statistics screens, you can click any port on the switch graphic to show statistics for that port. Click the Reset Counter button at the bottom of the screen to clear the counters.
24-port NWay Ethernet Switch User’s Guide ♦ Utilization Current utilization for the port, as a percentage of total available bandwidth. ♦ Last Screen MAC recent screen. The MAC address of the most Traffic in Bytes: ♦ Bytes Sent Counts the number of bytes successfully sent from the port. ♦ Bytes Received Counts the total number of bytes (octets) included in valid (readable) frames. ♦ Total Bytes Received Counts the total number of bytes received on the port, whether in valid or invalid frames.
24-port NWay Ethernet Switch User’s Guide Errors The information is described as follows: ♦ Update Interval Choose the desired setting: 2 seconds, 5 seconds, 15 seconds, 30 seconds, 60 seconds or Suspend. ♦ Link (Speed/Duplex/Flow Control) current link status. Indicates the Other errors: ♦ CRC Error Counts otherwise valid frames that did not end on a byte (octet) boundary.
24-port NWay Ethernet Switch User’s Guide ♦ Fragments The number of packets less than 64 bytes with either bad framing or an invalid CRC. These are normally the result of collisions. ♦ Jabber The number of frames with length more than 1518 bytes and with CRC error or misalignment (bad framing). ♦ Late Collision Counts collisions that occur at or th after the 64 byte (octet) in the frame.
24-port NWay Ethernet Switch User’s Guide Packet Analysis The information is described as follows: ♦ Update Interval Choose the desired setting: 2 seconds, 5 seconds, 15 seconds, 30 seconds, 60 seconds or Suspend. ♦ 64 The total number of packets (including bad packets) r eceived that were 64 octets in length (excluding framing bits but including FCS octets).
24-port NWay Ethernet Switch User’s Guide 255 octets in length inclusive (excluding framing bits but including FCS octets). ♦ 256-511 The total number of packets (including bad packets) received that were between 256 and 511 octets in length inclusive (excluding framing bits but including FCS octets). ♦ 512-1023 The total number of packets (including bad packets) received that were between 512 and 1023 octets in length inclusive (excluding framing bits but including FCS octets).
24-port NWay Ethernet Switch User’s Guide address. Note that this does not include dropped unicast packets ♦ Multicast Rx/Tx The total number of good packets that were received by and directed to a multicast address. Note that this number does not include packets directed to the broadcast address ♦ Broadcast Rx/Tx The total number of good packets that were received by and directed to a broadcast address. Note that this does not i nclude multicast packets.
24-port NWay Ethernet Switch User’s Guide Browse Address Table The Switch allows you to display a table containing MAC addresses, ports, and respective learned statuses. Clicking the Next Page hyperlink at the bottom of the screen will allow you to display the complete MAC Address Table.
24-port NWay Ethernet Switch User’s Guide Browse IGMP Status This window allows you to display Multicast Group, MAC Address, Queries (TX), Queries (RX), Reports, and Ports for IGMP Snooping in a table format.
24-port NWay Ethernet Switch User’s Guide Switch History The Switch can send event information to its own logs, to designated SNMP trap receiving stations, and to the PC connected to the console manager. Clicking the Next Page hyperlink at the bottom of the screen will allow you to display the complete Switch Traps Log. The information is described as follows: ♦ Sequence Order in which each log entry was received. ♦ Time The time the log entry was received.
24-port NWay Ethernet Switch User’s Guide Reset and Update The fourth category includes: Reboot Switch, Reset to Factory Default, Update Firmware, Change Configuration File, Upload Configure File, and Upload Log File. Reboot Switch To perform a reboot of the Switch, which resets the system, click the Reboot Now button.
24-port NWay Ethernet Switch User’s Guide Reset to Factory Default Doing a remote reset is equivalent to turning the Switch off and on again. All parameters are returned to the values stored in EEPROM. Click the Reset to Factory Default to reset the Switch.
24-port NWay Ethernet Switch User’s Guide Update Firmware To update firmware, fill in the requested information above and then click the Apply button. The information is described as follows: ♦ Software Update Mode is Set to either Network or SLIP. Determines whether the new firmware code should be obtained through the Ethernet network or through the console port. ♦ TFTP Server Address The IP address of the TFTP server where the new firmware code is.
24-port NWay Ethernet Switch User’s Guide Change Configuration File To change a configuration file, fill the fields in above and then click Apply. The information is described as follows: ♦ Software Update Mode is Set to either Network or SLIP. Determines whether the configuration file should be obtained through the Ethernet network or through the console port. ♦ TFTP Server Address is The IP address of the TFTP server where the configuration file is.
24-port NWay Ethernet Switch User’s Guide Save Settings to TFTP Server To save settings to a file on your TFTP server, fill the fields in above and then click Upload now. The information is described as follows: ♦ TFTP Server Address is The IP address of the TFTP server where the setting file will be saved. ♦ File Name The path and file name for the settings file on the TFTP server. ♦ Last Upload Status Read-only field displays the most recent upload activity.
24-port NWay Ethernet Switch User’s Guide Upload Log File To save a log file to your TFTP server, fill the fields in above and then click Upload now. The information is described as follows: ♦ TFTP Server Address is The IP address of the TFTP server where the log file will be saved. ♦ File Name The path and file name for the file to be saved on the TFTP server. ♦ Last Upload Status Read-only field displays the most recent upload activity.
24-port NWay Ethernet Switch User’s Guide Save Changes To save all the changes made in the current session to the Switch’s flash memory, click the Save Changes Now button. Help Click this button to access the online help files for the Switch.
24-port NWay Ethernet Switch User’s Guide A TECHNICAL S PECIFICATIONS General Standards: IEEE 802.3 10BASE-T Ethernet IEEE 802.3u 100BASE-TX Fast Ethernet IEEE 802.3z 1000BASE-SX Gigabit Ethernet IEEE 802.1 P/Q VLAN IEEE 802.
24-port NWay Ethernet Switch User’s Guide General Network Cables: 10BASE-T: 2-pair UTP Cat. 3,4,5 (100 m) EIA/TIA- 568 100-ohm STP (100 m) 100BASE-TX: 2-pair UTP Cat. 5 (100 m) EIA/TIA-568 100-ohm STP (100 m) 100BASE-TX: 2-pair UTP Cat. 5 (100 m) Fiber Optic: IEC 793-2:1992 Type A1a - 50/125um multimod Type A1b - 62.
24-port NWay Ethernet Switch User’s Guide Physical and Environmental : mount width Weight: 5 kg EMI: FCC Class A, CE Class A, VCCI Class A, BSMI Class A, C-Tick Class A Safety: UL, CSA, CE Mark, TUV/GS Performance Transmission Method: Store-and-forward RAM Buffer: 12 MB per device Filtering Address Table: 12K MAC address per device Packet Filtering/ Forwarding Rate: Full-wire speed for all connections. 148,800pps per port (for 100Mbps) MAC Address Learning: Automatic update.
24-port NWay Ethernet Switch User’s Guide B RJ-45 P IN S PECIFICATION When connecting the DES-3225G Switch to another switch, a bridge or a hub, a modified crossover cable is necessary. Please review these products for matching cable pin assignment. The following diagram and table show the standard RJ45 receptacle/connector and their pin assignments for the switch-to-network adapter card connection, and the straight/ crossover cable for the Switch-toswitch/hub/bridge connection. Figure B-1.
24-port NWay Ethernet Switch User’s Guide RJ-45 Connector pin assignment Contact Media Direct Interface Signal 1 2 3 4 5 6 7 8 Tx + (transmit) Tx - (transmit) Rx + (receive) Not used Not used Rx - (receive) Not used Not used Table B-1. The standard Category 3 cable, RJ-45 pin assignment The following shows straight cable and crossover cable connection: Figure B-2. Straight cable for Switch (uplink MDI-II port) to switch/Hub or other devices connection Figure B-3.
24-port NWay Ethernet Switch User’s Guide C S AMPLE CONFIGURATION FILE This Appendix provides a sample configuration file that can be used with the Update Firmware and Configuration Files screen in the console program. The configuration file is a simple text file that you create. It has two functions: to point to the location of a file on a TFTP server, and to set the IP address, subnet mask and default gateway for the switch.
24-port NWay Ethernet Switch User’s Guide Code_types are PROM , RUNTIME , or CONFIG . This should always be the first setting. ♦ • PROM – PROM update file. • RUNTIME – Switching software update file. • CONFIG – Image file of switch settings created by the settings backup procedure. Image_file – this command tells the switch the complete path and filename for the file to be loaded into the switch. For example, “e:\3225\3225prom.tfp ”. Make sure double-quotes are used as in the example file below.
24-port NWay Ethernet Switch User’s Guide remain in the file so that the syntax will not be forgotten. Notes about the Configuration File: This configuration file can only contain 4 settings: Code_type, Ip_addr, Subnet_mask and Default_gateway . Each command can only appear once in the configuration file. If both the Firmware Update and Use Configuration file options are enabled, the Firmware Update command will take precedence and only the firmware file will be uploaded to the switch.
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24-port NWay Ethernet Switch User’s Guide I NDEX % % Utilization ......................... 113 %Util................................. ....112 1 1000BASE-SX Gigabit Module ................................ ............. 17 100BASE-FX Fiber (MTRJ Type) Module................................ .17 100BASE-FX Fiber Module ....16 100BASE-TX Device .............. 23 100BASE-TX Module ............. 15 100M................................ .......19 100Mbps Fast Ethernet............. 1 1024-1518 Octs .................
24-port NWay Ethernet Switch User’s Guide Bridge Max. Age ..................... 34 Bridge MIB (RFC 1268) ........... 6 Bridge Priorit ............. 33, 34, 37 broadcast domains ................... 39 Broadcast Rx (Broadcast Frames Received)............................ 117 Broadcast Storm Falling Action ................................ ............. 70 Broadcast Storm Falling Threshold ............................. 70 Broadcast Storm Rising Action 69 Broadcast Storm Rising Threshold ........................
24-port NWay Ethernet Switch User’s Guide D Data filtering ............................ 6 Data filtering rate ..................... 5 Data forwarding ....................... 5 Data forwarding rate................. 5 data packet .............................. 79 Default Gatewa ...................... 62 Designated Bridge ................... 33 Designated Port ....................... 33 Destination IP Address .......... 105 Diagnostic por ......................... 5 Dimensions ...........................
24-port NWay Ethernet Switch User’s Guide Illustration of STA .................. 35 Ingress Filtering ...................... 97 Ingress port ............................. 45 Internet Group Management Protocol (IGMP) ................... 88 IP address........................ 62, 109 IP Address............................... 26 IP Addresses and SNMP Community Names............... 26 IP Configuration...................... 61 IP Multicast Filtering (IGMP Snooping).............................
24-port NWay Ethernet Switch User’s Guide NV-RAM ........................ 55, 122 NWay................................ ....... 4 Operating Temperature.......... 181 Out-of-band management and console settings .................... 63 Out-of-Band/Console Setting menu ................................ ....63 Oversize Frames .................... 114 port-based VLANs.................. 39 Port-based VLANs.................. 41 ports ................................ ......... 4 Ports .............................
24-port NWay Ethernet Switch User’s Guide S Save Changes .......................... 52 Save Settings to TFTP Serve 105 Save Switch History to TFTP Server................................ .106 Saving Changes....................... 55 securit ........................ 26, 40, 41 Segmenting Broadcast Domains ................................ ............. 48 Segments, Network................... 3 Serial Port ............................... 64 Server IP Address.................. 106 Setting Up The Switch ........
24-port NWay Ethernet Switch User’s Guide Third-party vendors’ SNMP software................................ 29 Total Bytes Recv.................... 113 Total Bytes Rx (Total Bytes Received)............................ 117 Total errors............................ 115 Total Frames Recv................. 113 Total RX ............................... 117 Traffic Statistics .................... 110 Transmission Methods........... 182 Trap managers ........................ 27 Trap Recipient...................
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