LGB2118A LGB2124A Gigabit Smart Switch Eco Fanless Supports http and SNMP interface for switch BLACK BOX management. ® • The LGB2118A has (16) 10-/100-/1000-Mbps TP ports and (2) Gigabit SFP ports. • T he LGB2124A has (20) 10-/100-/1000-Mbps TP ports and (4) Gigabit TP/SFP dual-media ports. Customer Support Information Order toll-free in the U.S.: Call 877-877-BBOX (outside U.S.
Trademarks Used in this Manual Trademarks Used in this Manual Black Box and the Double Diamond logo are registered trademarks of BB Technologies, Inc. Intel is a registered trademark of Intel Corporation. Microsoft and Internet Explorer are registered trademarks of Microsoft Corporation. Novell and NetWare are registered trademarks of Novell, Inc. Xerox is a registered trademark of Xerox Corporation. Any other trademarks mentioned in this manual are acknowledged to be the property of the trademark owners.
FCC and IC RFI Statements Federal Communications Commission and Industry Canada Radio Frequency Interference Statements This equipment generates, uses, and can radiate radio-frequency energy, and if not installed and used properly, that is, in strict accordance with the manufacturer’s instructions, may cause interference to radio communication.
NOM Statement Instrucciones de Seguridad (Normas Oficiales Mexicanas Electrical Safety Statement) 1. T odas las instrucciones de seguridad y operación deberán ser leídas antes de que el aparato eléctrico sea operado. 2. Las instrucciones de seguridad y operación deberán ser guardadas para referencia futura. 3. Todas las advertencias en el aparato eléctrico y en sus instrucciones de operación deben ser respetadas. 4. T odas las instrucciones de operación y uso deben ser seguidas. 5.
Table of Contents Table of Contents 1. Specifications..........................................................................................................................................................................7 1.1 General...........................................................................................................................................................................7 1.2 Management Software Specifications................................................................
Table of Contents 5.4 5.3.4 Ping Status..........................................................................................................................................................68 Maintenance.................................................................................................................................................................69 5.4.1 Warm Restart.....................................................................................................
Chapter 1: Specifications 1. Specifications 1.1 General Aging — Auto-aging with programmable inter-age time Auto-Negotiation — Supports auto-negotiation for configuring speed and duplex mode Blocking Prevention — Supports Head of Line (HOL) blocking prevention Buffer Memory — Embedded 512 KB frame buffer Cable Type and Maximum Length — Twisted-Pair (TP): CAT5 UTP cable, up to 328 ft. (100 m); Fiber: 1000BASE-SX: up to 721.7/902.2/1640.4/1804.5 ft.
Chapter 1: Specifications VLAN — Supports Port-based VLAN and Tag-based (IEEE 802.
Chapter 2: Overview 2. Overview 2.1 Introduction The Gigabit Smart Switch Eco Fanless is a standard switch that meets all IEEE 802.3/u/x/z Gigabit and Fast Ethernet specifications. The LGB2118A switch has (16) 10-/100-/1000-Mbps TP ports and (2) Gigabit SFP fiber transceiver slots. The LGB2124A switch has (20) 10/100/1000Mbps TP ports and (4) Gigabit dual media TP/SFP transceiver slots. Both switches support http and SNMP interfaces for switch management.
Chapter 2: Overview • Features per-port shaping, policing, and Broadcast Storm Control. • Saves power using two proprietary power management techniques. • Includes IEEE 802.1Q-in-Q nested VLAN support. • Uses full-duplex flow control (IEEE 802.3x) and half-duplex backpressure.
Chapter 2: Overview 2.4 Hardware Description 2.4.1 18-Port Gigabit Smart Switch Eco Fanless (LGB2118A) Figures 2-1 ad 2-2 show the front and back panels of the switch. Table 2-2 describes its components. Table 2-3 describes the LEDs in detail. 5 6 8 9 7 1 2 3 4 Figure 2-1. LGB2118A front panel. 10 Figure 2-2. LGB2118A back panel. Table 2-2. LGB2118A components. Number Component Description 1 (1) Mode button Switches between what is being displayed by LEDs.
Chapter 2: Overview Table 2-3. LGB2118A LED functions. LED Color Function (1) System Power LED Green Lit when power is on. Steady green Lit when connection with remote device is good. Blinking green Blinks when any traffic is present. Green Green when TP link is on 1000 Mbps speed. Yellow Yellow when TP link is on 10/100 Mbps speed. Off Off when no link is present. 1000SX/LX Gigabit fiber port 17, 18 Green Green when SFP link is on 1000 Mbps speed.
Chapter 2: Overview Table 2-4. LGB2124A components. Number Component Description 1 (1) Mode button Switches between what is being displayed by LEDs. 2 (24) TP port status LEDs For details, see Table 2-5. 3 (24) TP port speed LEDs For details, see Table 2-5. 4 (4) SFP port status LEDs For details, see Table 2-5. 5 Link/Act LED Lit to show switch is in Link/Act mode. 6 System LED Lit to show switch is in System mode. 7 Speed LED Lit to show switch is in Speed mode.
Chapter 2: Overview Optional Modules for LGB2118A and LGB2124A On the LGB2118A switch, Ports 17–18 are SFP fiber module ports. On the LGB2124A, Ports 21–24 include two types of media— TP and SFP Fiber (with LC connectors); they support 10-/100-/1000-Mbps TP or 1000-Mbps SFP Fiber with auto-detect function. Use a 1000-Mbps SFP Fiber transceiver for high-speed connection expansion; choose from four optional SFP types listed in Table 2-6. Table 2-6. Optional modules for LGB2124A.
Chapter 3: Installation 3. Installation 3.1 Starting Up the Switch This section will give users a quick start for: • Hardware and cable installation. • Management station installation. • Software booting and configuration. 3.1.1 Hardware and Cable Installation CAUTION: Wear a grounding device to avoid damage from electrostatic discharge. Make sure that power switch is OFF before you insert the power cord into the power source.
Chapter 3: Installation Connect CAT5 grade RJ-45 TP cable to a TP port of the switch and connect the other end to a network-aware device such as a workstation or a server. Repeat the above steps, as needed, to connect each RJ-45 port to a Gigabit 10/100/1000 TP device. The switch is ready to operate. Power On The switch supports a 100–240 VAC, 50–60 Hz power supply. The power supply will automatically convert the local AC power source to DC power.
Chapter 3: Installation Table 3-1. Fiber supported by the switch. Fiber cable type Multimode Fiber Cable and Modal Bandwidth Multimode 62.5-/125-µm IEEE 802.3z Gigabit Ethernet 1000BASE-SX, 850 nm Multimode 50-/125-µm Modal Bandwidth Distance Modal Bandwidth Distance 160 MHz-km 721.7 ft. (220 m) 400 MHz-km 1640.4 ft. (500 m) 200 MHz-km 902.2 ft. (275 m) 500 MHz-km 1804.5 ft. (550 m) Single-mode fiber 9/125 m 1000BASE-LX/LHX/ZX Single-mode transceiver 1310 nm, 6.2 mi. (10 km), or 18.6 mi.
Chapter 3: Installation Typical Network Topology in Deployment A hierarchical network with minimum levels of switches may reduce the timing delay between the server and the client station. This approach will minimize the number of switches in any one path, lower the possibility of network loops, and improve network efficiency. If more than two switches are connected in the same network, select one switch as the Level 1 switch and connect all other switches to it at Level 2.
Chapter 3: Installation 3. The switch manager has to assign different names for each VLAN group at one switch. Case 2b: Port-based VLAN (See Figure 3-4). VLAN 1 VLAN 2 VLAN 3 VLAN 4 Figure 3-4. Port-based VLAN diagram. 1. VLAN1 members cannot access VLAN2, VLAN3, and VLAN4 members. 2. VLAN2 members cannot access VLAN1 and VLAN3 members, but they could access VLAN4 members. 3. VLAN3 members cannot access VLAN1, VLAN2, and VLAN4. 4.
Chapter 3: Installation 3.1.3 Configuring the Management Agent of the Gigabit Smart Switch Eco Fanless Via the Web, the switch can set up the management function. Use any one of them to monitor and configure the switch. Configuring the Management Agent of the Gigabit Smart Switch Eco Fanless through the Ethernet Port There are two ways to configure and monitor the switch through the switch’s Ethernet port. They are Web browser and SNMP manager.
Chapter 3: Installation Figure 3-7. The Login screen for the Web. 3.1.4 Address Assignment For IP address configuration, there are four parameters that need to be filled in. They are IP address, Subnet Mask, Default Gateway, and DNS. IP address: The address of the network device in the network is used for internetworking communication. Its address structure is shown in Figure 3-8. It is split into predefined address classes or categories.
Chapter 3: Installation Class B: A Class B IP address ranges between 128.0.0.0 and 191.255.255.255. Each class B network has a 16-bit network prefix followed by a 16-bit host address. There are 16,384 (214)/16 networks able to be defined with a maximum of 65534 (216 –2) hosts per network. Figure 3-10. Class B IP address. Class C: A Class C IP address ranges between 192.0.0.0 and 223.255.255.255. Each class C network has a 24-bit network prefix followed by an 8-bit host address.
Chapter 3: Installation Figure 3-12. Subnet mask. In this diagram, the subnet mask is 25 bits long, 255.255.255.128, and contains 126 members in the subnetted network. The length of the network prefix equals the number of the bit with 1s in that subnet mask. This enables the switch to count the number of IP addresses matched. The following table shows the results. Table 3-3. Number of IP addresses matched. Prefix Length No. of IP matched No.
Chapter 3: Installation For different network applications, the subnet mask may be 255.255.255.240. It is a small network that accommodates a maximum of 15 nodes in the network. Default gateway: For the routed packet, if the destination is not in the routing table, all the traffic is put into the device with the designated IP address, known as the default router. Basically, it is a routing policy.
Chapter 3: Installation Gigabit Smart Switch Eco Fanless (LGB2124A) Rack-based media converter system Gigabit Smart Switch Eco Fanless (LGB2124A) Copper cables RJ-45 SFP Fiber cable Copper cables RJ-45 SFP Gigabit Smart Switch Eco Fanless (LGB2124A) Copper cables RJ-45 Copper cable RJ-45 Media Converter Copper cable RJ-45 Media Converter Fiber cables Fiber cable Fiber cable Gigabit Smart Switch Eco Fanless (LGB2124A) Fiber cable SFP Copper cables RJ-45 Figure 3-14.
Chapter 3: Installation Fig. 3-14 is a system-wide basic reference connection diagram. This diagram demonstrates how the switch connects with other network devices and hosts. Gigabit Smart Switch Eco Fanless (LGB2124A) Copper cables RJ-45 Copper cables RJ-45 Financial MIS Figure 3-15. Peer-to-peer network connection.
Chapter 4: Basic Concepts and Management 4. Basic Concepts and Management This chapter describes the features used to manage this switch and how they work. 4.1 Ethernet Ethernet originated and was implemented at Xerox® in Palo Alto, CA in 1973 and was successfully commercialized by Digital Equipment Corporation (DEC), Intel® and Xerox (DIX) in 1980.
Chapter 4: Basic Concepts and Management Figure 4-2. MAC sub layer in physical layer in OSI model. This diagram shows the Ethernet architecture, LLC sub-layer and MAC sub-layer, which operate at the Data Link layer, and transceivers, which work at the Physical layer in the OSI model. In this section, we describe the MAC sub-layer. 4.2 Logical Link Control (LLC) The data link layer consists of both the sub-layers of MAC and MAC-client. The MAC client may be logical link control or the bridge relay entity.
Chapter 4: Basic Concepts and Management Table 4-2. SSAP address field options. OxAAAA SNAP 0xE0E0 Novell® IPX 0x F0F0 NetBios 0xFEFE IOS network layer PDU 0xFFFF Novell IPX 802.3 RAW packet 0x4242 STP BPDU 0x0606 IP 0x9898 ARP LLC type 1 is a connectionless service, LLC type 2 is a connection-oriented service, and LLC type 3 acknowledges a connectionless service and has three types of LLC frames for all classes of service. Figure 4-3 shows the format of the Service Access Point (SAP).
Chapter 4: Basic Concepts and Management The first three bytes are Organizational Unique Identifier (OUI) codes assigned by IEEE. The last three bytes are the serial number assigned by the vendor of the network device. All six bytes are stored in non-volatile memory in the device. Their format is shown in Table 4-3. It is normally written as aa-bb-cc-dd-ee-ff, 12 hexadecimal digits separated by hyphens, in which the aa-bb-cc is the OUI code and the dd-ee-ff is the serial number assigned by manufacturer.
Chapter 4: Basic Concepts and Management • L ength/Type — This field indicates either the number of the data bytes contained in the data field of the frame, or the Ethernet type of data. If the value of first two bytes is less than or equal to 1500 in decimal notation, the number of bytes in the data field is equal to the Length/Type value, that is, this field acts as a Length indicator at this moment. When this field acts as Length, the frame has optional fields for 802.3/802.2 SNAP encapsulation, 802.
Chapter 4: Basic Concepts and Management 4. D uring the transmission, the MAC keeps monitoring the status of the medium. If no collision happens until the end of the frame, it transmits successfully. If there is a collision, the MAC will send the patterned jamming bit to guarantee the collision event is propagated to all involved network devices, then wait for a random period of time, called back off time. When backoff time expires, the MAC goes back to the beginning state and attempts to transmit again.
Chapter 4: Basic Concepts and Management Table 4-5. Ethernet parameters for half-duplex mode. Parameter Value/LAN 10BASE 100BASE 1000BASE Max. collision domain DTE to DTE 328 feet (100 m) 328 feet (100 m) for UTP 328 feet (100 m) for UTP 1351.7 feet (412 m) for fiber 1043.3 feet (316 m) for fiber Max. collision domain with repeater 8202.1 feet (2500 m) 672.6 feet (205 m) 646.1 feet (200 m) Slot time 512 bit times 512 bit times 512 bit times Interframe gap 9.6 µs 0.96 µs 0.
Chapter 4: Basic Concepts and Management Inter-frame Gap time After the end of a transmission, if a network node is ready to transmit data out and if there is no carrier signal on the medium at that time, the device will wait for a period of time known as an inter-frame gap time to clear and stabilize the medium, as well as to have the jobs ready, such as adjusting buffer counter, updating counter, and so on, in the receiver site.
Chapter 4: Basic Concepts and Management What if VLAN tagging is applied? VLAN tagging is a 4-byte long data immediately following the MAC source address. When tagged VLAN is applied, the Ethernet frame structure will change slightly. Collision domain 2 Collision domain 1 Collision domain 3 Collision domain 4 Collision domain 5 Figure 4-6. Only two fields, VLAN ID and Tag control information, are different when compared to the basic Ethernet frame. The rest of the fields are the same.
Chapter 4: Basic Concepts and Management When MAC parses the received frame and finds a reserved special value 0x8100 at the location of the Length/Type field of the normal non-VLAN frame, it will interpret the received frame as a tagged VLAN frame. If this happens in a switch, the MAC will forward it, according to its priority and egress rule, to all the ports associated with that VID.
Chapter 4: Basic Concepts and Management 4.5 How Does a Switch Work? The LGB2118A switch is a layer 2 Ethernet Switch equipped with (16) TP Gigabit Ethernet ports and (2) slots for optional SFP fiber modules. The LGB2124A switch has (20) TP ports and (4) slots for optional TP/SFP combo modules.
Chapter 4: Basic Concepts and Management How does a switch operate? A Layer 2 switch uses some features of the Data Link layer in the OSI model to forward the packet to the destination port(s). Here we introduce some important features of switches and how they work.
Chapter 4: Basic Concepts and Management Mini frame Mini computer Ethernet switch BACKBONE Ethernet switch Ethernet switch Ethernet switch Printer Workstations Printer Figure 4-8. In the figure above, all stations are within the same broadcast domain. For these stations, the traffic is getting congested when adding more stations to the broadcast domain. With more and more users joining the LAN, broadcast traffic will rapidly decrease the performance of the network.
Chapter 4: Basic Concepts and Management Router 1a 2a Ethernet switch Ethernet switch BACKBONE Ethernet switch Ethernet switch Figure 4-9. Virtual LAN. By applying VLAN technology, you can configure the system shown in Figure 4-9. You can partition the users into the different logical networks that have their own broadcast domain. The traffic will not disturb these logical networks. The users 1x (x denotes a – d) are members of VLAN 1. Any traffic within VLAN 1 does not flow to VLAN 2 and others.
Chapter 4: Basic Concepts and Management Figure 4-10. Tag format. VLAN Protocol ID: 8100 is reserved for VLAN-tagged frame. User Priority: 3 bits long. User priority is defined from 7–0. 0 is the lowest priority. CFI: Canonical Format Indicator is 1 bit long. It encapsulates a token ring packet so it can travel across the Ethernet. Usually, it is set to 0. VLAN ID: 12 bits long. 0 means no VLAN ID is present. 1 means default VLAN, 4095 is reserved.
Chapter 4: Basic Concepts and Management 2. If the VID is not a null VID (VID is not equal to 0), then use the value to classify the VLAN group. Egress Rule: An egress list is used to make the tagging and forwarding decision on an outgoing port. It specifies the VLANs whose packets can be transmitted out and specifies if the packet should be tagged or not. It can be configured for the port’s VLAN membership, and tagged or untagged for a transmitted packet.
Chapter 4: Basic Concepts and Management Next, the switch assigns an IP address to each VLAN. Usually, we use 10.x.x.x as the internal IP block. Because there are a total of four VLANs in the network, we must assign four IP blocks to each of them. Table 4-8. Network address assigned to each VLAN. Name VID Network Address Marketing 2 10.1.2.0/24 Service 3 10.1.3.0/24 Sales 4 10.1.4.0/24 Administration 1 10.1.1.0/24 Here we apply the subnet mask 255.255.
Chapter 4: Basic Concepts and Management There are also some constraints when applying LACP: 1. LACP does not support inter-switch bandwidth aggregation. 2. The ports aggregated must operate in full-duplex mode. 3. T he ports in the same Link Aggregation Group must operate at the same speed, for example, all 100 Mbps or all 1000 Mbps. You cannot aggregate a 1000 Mbps port and two 100 Mbps ports for a 1.2 Gbps trunk port.
Chapter 5: Operation of Web-based Management 5. Operation of Web-based Management This chapter explains how to manage your Gigabit Smart Switch Eco Fanless and how to configure the 10-/100-/1000-Mbps TP Ports and Gigabit SFP Fiber ports on the switch via Web user interfaces. The LGB2118A provides (16) fixed Gigabit Ethernet TP ports and (2) optional SFP ports. The LGB2124A provides (20) fixed Gigabit Ethernet ports and (4) TP/SFP dual-media ports.
Chapter 5: Operation of Web-based Management Page Layout Information The top part of the information page, shows the front panel of the switch. Linked ports will be displayed in green, and linked-off ports will be in black. For the optional modules, the slots with no module will only show covered plates, the other slots with installed modules would show modules. The images of modules depend on the ones you insert. Vice versa, if ports are disconnected, they will show in black.
Chapter 5: Operation of Web-based Management 5.2 Configuration Configuration includes the following functions: System Configuration, Ports Configuration, VLAN Mode Configuration, VLAN Group Configuration, VLAN Isolation, Aggregation, IGMP Snooping, Mirroring, Loop Detection, Broadcast Storm Protection, and QoS. Figure 5-3. Configuration menu function tree. 5.2.1 System Information System configuration is one of the most important functions.
Chapter 5: Operation of Web-based Management Figure 5-4. System Configuration menu. Function name: System Configuration Function description: Show system description, firmware version, hardware version, MAC address, serial number, active IP address, active subnet mask, active gateway, DHCP server, and lease time left. Set device name, DHCP enabled, fallback IP address, fallback subnet mask, fallback gateway, management VLAN, password, and inactivity timeout.
Chapter 5: Operation of Web-based Management DHCP Server: Shows the IP address of the DHCP server. The default is 0.0.0.0. Lease Time Left: Shows the lease time left for the DHCP client. Device Name: Set a special name for this switch. Up to 16 characters are allowed in this parameter. Any alphanumeric characters and the null character are acceptable. Default: Giga Switch DHCP Enabled: Enable DHCP snooping, Just tick the check box √ to enable it. The default is disable.
Chapter 5: Operation of Web-based Management Figure 5-6. Port Configuration menu. Parameter description: Enable Jumbo Frames: This function supports jumbo frames of up to 9600 bytes. Just tick the check box to enable it. The default is disable. Power Saving Mode: This function supports power saving. Select Full/ Link-up/Link-down/Disable using the drop-down menu. Default: disable Link: Show link status of this port. Mode: Set the speed and duplex of the port.
Chapter 5: Operation of Web-based Management Table 5-2. Media supported. Media Type Auto-negotiation Speed Duplex 1000M TP ON/OFF 10/100/1000M Full for all, Half for 10/100 1000M Fiber ON/OFF 1000M Full In Auto Speed mode, there is no default value. In Forced mode, the default value depends on your setting. Flow Control: You can tick the check box to enable flow control.
Chapter 5: Operation of Web-based Management Figure 5-8. tag-VLAN Mode. Figure 5-9. Per port configuration. Parameter description: VID: VLAN identifier. Each tag-based VLAN group has a unique VID. It appears only in tag-based mode. Member: In the modify function, this is used to enable or disable if a port is a member of the new added VLAN. “Enable” means it is a member of the VLAN. Just tick the check box beside Port x to enable it. Port: Port number.
Chapter 5: Operation of Web-based Management Packet Type: All: Forward all tagged and untagged packets. Tagged Only: Forward tagged packets only and discard untagged packets. PVID: This PVID range will be 1–4094. Before you set a number x as PVID, you have to create a Tag-based VLAN with VID x. For example, if port x receives an untagged packet, the switch will apply the PVID (assume as VID y) of port x to tag this packet, the packet then will be forwarded as the tagged packet with VID.
Chapter 5: Operation of Web-based Management Figure 5-11. Add or Remove VLAN Member. Parameter description: ID (Group ID): When you want to edit a VLAN group, you must select the Group ID field. Then, you will enter the Tag Base VLAN Group Setting or Port Base VLAN Group Setting page, depending on which VLAN mode you select. Member: In modify function, this is used to enable or disable if a port is a member of the newly added VLAN. “Enable” means it is a member of the VLAN.
Chapter 5: Operation of Web-based Management Figure 5-12. Port Isolation configuration. Parameter description: Port Members: A check box is provided for each port of a private VLAN. When checked, port isolation is enabled on that port. When unchecked, port isolation is disabled on that port. By default, port isolation is disabled on all ports. 5.2.6 Aggregation (LGB2118A Only) The Aggregation (Port Trunking) Configuration is used to configure the settings of Link Aggregation.
Chapter 5: Operation of Web-based Management 5.2.7 IGMP Snooping Function name: IGMP Snooping Configuration Function description: IGMP Snooping lets administrators configure a switch to constrain multicast traffic by listening to Internet Group Management Protocol (IGMP). After finishing the settings, click on the “Apply” button to start up the function. Figure 5-14. IGMP Configuration. Parameter description: IGMP Enabled: Just tick the check box to enable this function. The default is disable.
Chapter 5: Operation of Web-based Management Figure 5-15. Mirror ports configuration. 5.2.9 SNMP Any Network Management System (NMS) running the Simple Network Management Protocol (SNMP) can manage the managed devices equipped with an SNMP agent, provided that the Management Information Base (MIB) is installed correctly on the managed devices.
Chapter 5: Operation of Web-based Management Figure 5-16. SNMP Configuration. Parameters description: SNMP enable: The term SNMP enable here is used for the activation or deactivation of SNMP. The default is “Disable.” Get/Set/Trap Community: Community name is used as password for authenticating if the requesting network management unit belongs to the same community group. If they both don’t have the same community name, they don’t belong to the same group.
Chapter 5: Operation of Web-based Management 5.2.10 Loop Detection Function name: Loop Detection Configuration Function description: The loop detection is used to detect the presence of traffic. When a packet’s looping detection frame is received by the switch and has a MAC address the same as its own from a port, loop detection occurs. The port will be locked when it receives the looping detection frames.
Chapter 5: Operation of Web-based Management State: Show the status on the port. Protocol Enabled: Controls whether Loop Detection is enabled on this switch port. When a port number is chosen and Loop detection is enabled, the port detects the loop and the port will be locked. If no Loop occurred, the port remains unlocked. Unlock port: When ticking the port, the locked port will be opened and become unlocked. If the port is not checked √, it remains locked. 5.2.
Chapter 5: Operation of Web-based Management Figure 5-18. Rate Limit Configuration. Parameter description: Mode: Controls whether Broadcast Strom Protection is enabled (as a whole). Packet Per Second: When the broadcast packet traffic in a second is higher than the threshold configured, Broadcast Storm Protection is enabled. Unlock Time: The period (in seconds) for which a port will be kept disabled if a loop is detected (and the port action is to shut down the port). Port: Port number.
Chapter 5: Operation of Web-based Management Unlock port: Tick the checkbox next to the locked port and it will be opened and changed to unlocked. If you don’t tick the port checkbox, it remains locked. 5.2.12 Quality of Service (QoS) Configuration The QoS function supports VLAN-tagged priority that can set eight priorities, and DSCP (Differentiated Services Code Point) on Layer 3 of the network framework. Figure 5-19. QoS Configuration.
Chapter 5: Operation of Web-based Management Figure 5-20. 802.1p Setting. Function name: DSCP QoS Mode Function description: In the late 1990s, the IETF redefined the meaning of the 8-bit Service Type field to accommodate a set of differentiated services (DS). Under the differentiated services interpretation, the first six bits are a codepoint, which is sometimes abbreviated DSCP, and the last two bits are left unused.
Chapter 5: Operation of Web-based Management Figure 5-21. DSCP Setting. 5.3 Monitoring There are four functions contained in the monitoring function. Figure 5-22. Monitoring menu tree. 5.3.1 Statistics Overview Function name: Statistics Overview for all ports Function description: The section describes the Port statistics information and provides an overview of general traffic statistics for all switch ports. Page 64 724-746-5500 | blackbox.
Chapter 5: Operation of Web-based Management Figure 5-23. Statistics Overview for all ports. Parameter description: Tx/Rx Bytes: The number of received and transmitted bytes per port. Tx/Rx Frames: The number of received and transmitted frames per port. Tx/Rx Errors: The number of frames received in error and the number of incomplete transmissions per port. 5.3.2 Detailed Statistics Function name: Detailed Statistics Function description: Display the detailed counting number of each port’s traffic.
Chapter 5: Operation of Web-based Management Rx High Priority Packets: Number of Rx packets classified as high priority. Rx Low Priority Packets: Number of Rx packets classified as low priority. Rx Broadcast: Show the counting number of the received broadcast packet. Rx Multicast: Show the counting number of the received multicast packet. Rx Broadcast and Multicast: Show the counting number of the received broadcast with multicast packet.
Chapter 5: Operation of Web-based Management 5.3.3 IGMP Status Function name: IGMP Status Function description: Display IGMP status. In Fig. 5-26, the window shows the VLAN ID for each multicast group. Figure 5-25. IGMP Status. Parameter description: VLAN ID: Show VLAN ID for each multicast group. Querier: Show the group membership queries status. Queries transmitted: Count the group membership queries transmitted. Queries received: Count the group membership queries received.
Chapter 5: Operation of Web-based Management 5.3.4 Ping Status Function name: Ping Status Function description: Set up a target IP address for ping function and display ping status. In Fig. 5-27, the window shows the ping information. Figure 5-26. Ping. Parameter description: Ping Parameters: Target IP address: Set up a Target IP address to ping. Count: Use the drop-down menu to set number of echo requests to send. Choose from four numbers: 1, 5, 10, and 20.
Chapter 5: Operation of Web-based Management 5.4 Maintenance There are five functions contained in the maintenance function. Figure 5-27. Maintenance menu tree. 5.4.1 Warm Restart You can reboot the switch in three ways: power up, hardware reset, and software reset. Press the “Reset” button on the front panel of your switch to reset the device and to retrieve default settings. After upgrading software, you have to reboot the device to have the new configuration take effect. This is a software reset.
Chapter 5: Operation of Web-based Management 5.4.2 Factory Default Function name: Factory Default Function description: Factory Default provides the function to retrieve default settings and replace the current configuration. Except for the IP address setting, all settings will be restored to the factory default values when the “Factory Default” function is performed.
Chapter 5: Operation of Web-based Management 5.4.5 Logout In addition to the auto logout function we just mentioned in the system configuration section, the switch also allows administrators to logout manually using the Logout function. Function name: Logout Function description: The switch allows you to logout from the system to prevent other users from accessing the system without permission. If you do not logout and exit the browser, the switch will automatically log you out.
Chapter 6: Troubleshooting 6. Troubleshooting 6.1 Resolving a No Link Condition There are four possible causes for a no-link LED status: • The attached device is not powered on. • The cable may not be the correct type or is faulty. • The installed building premise cable is faulty. • The port may be faulty. 6.2 Questions and Answers 1. Computer A can connect to Computer B, but cannot connect to Computer C through the Gigabit Smart Switch Eco Fanless. • T he network device of Computer C may fail to work.
Appendix: MIB Specifications Appendix: MIB Specifications A brief description of the MIB II Enterprise MIB brief appears next. For technical support or the latest version of MIB download, contact Black Box Technical Support at 724-746-5500 or info@blackbox.com.
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Black Box Tech Support: FREE! Live. 24/7. Tech support the way it should be. Great tech support is just 60 seconds away at 724-746-5500 or blackbox.com. About Black Box Black Box provides an extensive range of networking and infrastructure products. You’ll find everything from cabinets and racks and power and surge protection products to media converters and Ethernet switches all supported by free, live 24/7 Tech support available in 60 seconds or less. © Copyright 2014. Black Box Corporation.
