ATX User’s Guide
Notice Enterasys reserves the right to make changes in specifications and other information contained in this document without prior notice. The reader should in all cases consult Enterasys to determine whether any such changes have been made. The hardware, firmware, or software described in this manual is subject to change without notice.
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Contents Chapter 1 Introduction Using the ATX Switch User’s Guide .......................................................................... 1-2 Related Manuals............................................................................................................ 1-2 Software Conventions .................................................................................................. 1-3 Common ATX Switch Window Fields ................................................................
Contents Viewing I/F Summary Information .................................................................. 2-23 Interface Performance Statistics/Bar Graphs ........................................... 2-25 Viewing Interface Detail .............................................................................. 2-26 Making Sense of Detail Statistics......................................................... 2-28 Enabling and Disabling Ports........................................................................
Chapter 1 Introduction How to use this guide; related guides; software conventions; getting help; ATX Switch firmware version information Welcome to the NetSight Element Manager for the ATX User’s Guide. We have designed this guide to serve as a simple reference for using NetSight Element Manager for the ATX Switch. The ATX Switch comprises a five-slot chassis along with a high-capacity Packet Processing Engine (PPE), which occupies an additional top slot.
Introduction Using the ATX Switch User’s Guide Each chapter in this guide describes one major functionality or a collection of several smaller functionalities of the ATX Switch. This guide contains information about software functions which are accessed directly from the device icon; for information about functions which are accessed via the NetSight Element Manager platform, consult the User’s Guide and Tools Guide both of which are included in this package.
Introduction NetSight Element Manager User’s Guide NetSight Element Manager Tools Guide Network Troubleshooting Guide Microsoft Corporation’s Microsoft Windows User’s Guide For more information about the capabilities of the ATX Switch, consult the appropriate hardware documentation. Software Conventions NetSight Element Manager’s device user interface contains a number of elements which are common to most windows and which operate the same regardless of which window they appear in.
Introduction Figure 1-1. Sample Window Showing Group Boxes Device Name Displays the user-defined name of the device. The device name can be changed via the System Group window; see the Generic SNMP User’s Guide for details. IP Address Displays the ATX Switch’s IP (Internet Protocol) Address; this will be the IP address used to define the ATX Switch icon. IP addresses are assigned via Local Management for the ATX Switch; they cannot be changed via NetSight Element Manager.
Introduction The command buttons, for example , call up a menu listing the windows, screens, or commands available for that topic. Any menu topic followed by ... (three dots) — for example Statistics... — calls up a window or screen associated with that topic. Getting Help This section describes two different methods of getting help for questions or concerns you may have while using NetSight Element Manager.
Introduction FTP: Login Password By BBS: Modem Setting ftp.ctron.com (134.141.197.25) anonymous your email address (603) 335-3358 8N1: 8 data bits, 1 stop bit, No parity Send your questions, comments, and suggestions regarding NetSight documentation to NetSight Technical Communications via the following e-mail address: Netsight_docs@enterasys.com To locate product specific information, refer to the Enterasys Web site at the following address: http://www.enterasys.
Chapter 2 The ATX Switch Chassis View Information displayed in the Chassis View window; the Chassis Manager window; Hub management functions The ATX Switch Chassis View window is the main screen that immediately informs you of the current condition of individual ports on boards inserted in the ATX Switch chassis via a graphical display. The Chassis View displays the ATX’s Packet Processing Engine (PPE) and all the modules installed in your ATX Switch chassis.
The ATX Switch Chassis View 2. Select Manage—>Node from the primary window menu bar, or select the Manage Node toolbar button. or 1. In any map, list, or tree view, click the right mouse button once to select the ATX Switch you wish to manage. 2. On the resulting menu, click to select Manage. 3.
The ATX Switch Chassis View TIP When you move the mouse cursor over a management “hot spot” the cursor icon will change into a “hand” ( ) to indicate that clicking in the current location will bring up a management option.
The ATX Switch Chassis View Boot Prom The revision of BOOT PROM installed in the ATX. Firmware The revision of device firmware stored in the ATX’s FLASH PROMs. NOTE The ATX Switch does not support Device Date or Time; therefore, these fields will display N/A. Menu Structure By clicking on various areas of the ATX Switch Chassis View display, you can access menus with device-, module-, and port-level options, as well as utility applications which apply to the ATX Switch.
The ATX Switch Chassis View The Device Menu From the Device Menu at the Chassis View window menu bar, you can access the following selections: • Device Type..., which displays a window containing a description of the device being modeled. • System Group..., which allows you to manage the ATX Switch via SNMP MIB_II. Refer to the Generic SNMP User’s Guide for further information.
The ATX Switch Chassis View For more information on the port display options available via this menu, see Selecting a Port Status View, page 2-8. The Utilities Menu The Utilities menu provides access to the MIBTree utility, which provides direct access to the ATX’s MIB information, and to the RMON utility, a remote monitoring feature that is supported by many Cabletron and Enterasys intelligent devices.
The ATX Switch Chassis View The Module Menu There is one module menu selection: • Module Type..., which brings up a window containing a description of a module inserted in the ATX Switch; see Viewing Hardware Types, page 2-10. The PPE Port Menu The port representing the ATX’s Packet Processing Engine (PPE) has the following selections in its port menu: • Description..., which brings up a window describing the selected port; see Interface Description, page 2-11.
The ATX Switch Chassis View Selecting a Port Status View To change the status view of your ports: 1. Click on Port Status on the menu bar at the top of the Chassis View window; a menu will appear. 2. Drag down (and to the right, if necessary) to select the status information you want to display. The port text boxes will display the appropriate status information.
The ATX Switch Chassis View • ON if the port is currently forwarding packets. • OFF if the port is not currently forwarding packets. Load If you choose Load, the interface text boxes will display the percentage of network load processed by each port during the last polling interval. This percentage reflects the network load generated per polling interval by devices connected to the port compared to the theoretical maximum load (10 or 100 Mbits/sec) of an Ethernet network.
The ATX Switch Chassis View The Chassis Manager Window Like most networking devices, Enterasys and Cabletron ATX Switch management modules draw their functionality from a collection of proprietary MIBs and IETF RFCs. In addition, many Enterasys and Cabletron intelligent devices – like the ATX Switch – organize their MIB data into a series of “components.” A MIB component is a logical grouping of MIB data, and each group controls a defined set of objects.
The ATX Switch Chassis View Choosing the Device Type option on the Device menu brings up a window that tells you this is an ATX Switch. Figure 2-5. Device Type Window From the Module Menus in the Chassis View window, you can view a description of the module type. To view the module type: 1. Click on the module index. The Module menu will appear. 2. Drag down to Module Type.... A Module Type text box (Figure 2-6), will appear, displaying the appropriate Module Type. Figure 2-6.
The ATX Switch Chassis View Figure 2-7. Sample Interface Description Text Boxes Managing the Hub In addition to the performance and configuration information described in the preceding sections, the Chassis View also provides you with the tools you need to configure your ATX Chassis and keep it operating properly. Hub management functions include IPX and IP Routing configuration, port configuration, bridge configuration, locating source addresses, and enabling and disabling ports.
The ATX Switch Chassis View Figure 2-8. IPX Routing window Configuring IPX Routing on a port 1. Click on the IPX selection box to enable IPX routing on the port. 2. Enter the (hexadecimal) Novell network number of the Novell network connected to this port in the IPX Network field. The network number is a 4-byte LAN address. Each port with IPX routing enabled must have a unique network number. 3. Select a frame type for the port by choosing a frame type from the IPX Framing pull-down menu.
The ATX Switch Chassis View 2(ethernet2) Ethernet2 frames are the same as 802.3 frames, except they use the third field (the length field in 802.3) to store a value representing the type of transport packet that is encapsulated within the Ethernet packet. 3(ieee802.2) 802.2 is the default for non-Ethernet links. 802.2 frames are the same as 802.3 frames, except they have Logical Link Control (LLC) information encoded within them immediately following the 802.3 length field.
The ATX Switch Chassis View Configuring the IP Address Table The IP Address Info section of this window displays the IP Addresses and the subnet masks for each of the device’s interfaces that are configured for IP Routing. You can enter the IP Address and IP Mask for the current interface from this window. The IP Address Table located in this window displays the Interface Number, IP Address and IP Mask for each table entry.
The ATX Switch Chassis View • Bootp Relay — when enabled specifies that this port will relay BOOTP packets. BootP requests and replies are encapsulated in UDP datagrams. • IP Multicast — when enabled specifies that the internet Multicast Routing Protocol is to be used over this port. Multicast Routing enables you to address a packet to multiple destinations. 3. Click on Set to set the configuration.
The ATX Switch Chassis View To set broadcast protection: 1. In the Thresh Number field enter the maximum number of multicast packets that can be transmitted through the port during each time interval. The default number of multicast packets that can be received in the specified time interval is 600,000. 2. In the Thresh Time field enter number hours, minutes, seconds in which the maximum number of multicast packets must be transmitted in order for the threshold to be reached.
The ATX Switch Chassis View Figure 2-11. Bridge Configuration window Setting the Bridge Mode Depending on the modules installed in your ATX chassis the ATX ports can support up to three modes of bridging: Transparent, Source Routing, and Source Route Transparent. • Transparent — When the bridge port is set to Transparent mode, the bridge will only transmit transparent frames. All port types (ethernet, fast ethernet, fddi, and token ring) may be set to transparent mode.
The ATX Switch Chassis View Transmitting BPDUs You can configure whether or not this port will transmit BPDUs (Bridge Protocol Data Units). BPDUs are used in the Spanning Tree process. Bridges communicate Spanning Tree Algorithm information via BPDUs. With BPDUs, all network bridges collectively determine the current network topology and communicate with each other to ensure that the topology information is kept current. 1.
The ATX Switch Chassis View the Spanning Tree Protocol and has it enabled on this port. Manual — Enable The port will always accept and propagate STE packets, regardless of its port state. Manual — Disable The port will not accept or send STE packets; any STE packets received will be discarded. Setting the Spanning Tree Explorer Mode • To choose Auto as the Spanning Tree Explorer Mode on this port, click in the Auto selection box.
The ATX Switch Chassis View You can set the translation for the following protocols from this window: IPX Framing By selecting the option Enable IPX Translation you can specify whether, when bridging Novell IPX frames, they are to be translated to Ethernet-like frame format. When you initially select this option, the IPX Framing selection button will be empty. This button’s pull-down menu allows you to choose the type of framing to be used for IPX frames on 802.3 networks.
The ATX Switch Chassis View ARP Source Route This selection will specify what will occur when bridging ARP packets that are also source routing explorer frames. The source routing information can either be stripped or forwarded. Choose one of the following options for this field: pass-Rif (1) The ARP frame is bridged as is, with the route discovery proceeding as expected. stripRif (2) The routing information field will be stripped before it is forwarded. This allows non-source routing (e.g.
The ATX Switch Chassis View Using the Find Source Address Feature You can select the Find Source Address option to discover which switching interface a specified source MAC address is communicating through. When you select the Find Source Address option, a search is made of the 802.1d Bridge Filtering Database to discover the switch interface associated with the address that you specify. If the search is successful, the corresponding Bridge port will flash in the Chassis View window.
The ATX Switch Chassis View 2. Drag down to I/F Summary and release. The I/F Summary window, Figure 2-14, will appear. Figure 2-14. I/F Summary Window The I/F Summary window provides a variety of descriptive information about each interface on your device, as well as statistics which display each interface’s performance.
The ATX Switch Chassis View Interface Performance Statistics/Bar Graphs The statistical values (and, where available, the accompanying bar graphs) to the right of the interface description fields provide a quick summary of interface performance. You can select the statistical value you want to display and the units in which you want those values displayed by using the two menu fields directly above the interface display area, as follows: 1.
The ATX Switch Chassis View Out Packets Packets transmitted, at the request of a higher level protocol, by the device interface to a subnetwork address (both unicast and non-unicast). Out Discards Outbound packets that were discarded by the device interface even though no errors were detected that would prevent them from being transmitted. A possible reason for discard would be to free up buffer space in the device.
The ATX Switch Chassis View Figure 2-15. Interface Detail Window Three informational fields appear in the upper portion of the window: Description Displays the interface description for the currently selected interface: Ethernet. Address Displays the MAC (physical) address of the selected interface. Type Displays the interface type of the selected port: ethernet-csmacd, sdlc, or other.
The ATX Switch Chassis View Discarded Displays the number of packets which were discarded even though they contained no errors that would prevent transmission. Good packets are typically discarded to free up buffer space when the network becomes very busy; if this is occurring routinely, it usually means that network traffic is overwhelming the device. To solve this problem, you may need to re-configure your bridging parameters, or perhaps re-configure your network to add additional bridges or switches.
The ATX Switch Chassis View To calculate the percentage of inbound packets that were discarded: Received Discards /Packets Received To calculate the percentage of outbound packets that were discarded: Transmit Discards /Packets Transmitted NOTE Unlike the Interface Detail window, which this window replaces, the Interface Statistics window does not offer Disable or Test options.
The ATX Switch Chassis View 2-30 Managing the Hub
Chapter 3 Using ATX Trunking The Trunking Table window; enabling and disabling trunking Trunking, an extension of the 802.1D Spanning Tree protocol, allows you to increase aggregate bandwidth when two or more switches are connected. A single 10BASE-T connection between switches yields 10 or 100 Mbps of bandwidth, depending on the speed of the ports used for the connection.
Using ATX Trunking Trunking Table Port Selection Area Figure 3-1. The Trunking Table Window The Port Trunking Window The Port Trunking window features the trunking table (in the upper portion of the window), which displays the following information about each interface for which trunking is enabled: Index Displays the port’s strunkIfIndex identifier. State Indicates the port’s trunking condition (strunkState).
Using ATX Trunking • helddown — trunking is enabled, but the trunk connection has been rejected. Indicates that an error has been detected and the link is being held out of service until the error condition clears. After a short time-out period, another attempt will be automatically initiated to establish a good trunk connection. • broken — the port has been configured for trunking, but is physically nonoperational. Rmt Bridge Id Displays the MAC address portion of the remote bridge’s bridge ID.
Using ATX Trunking • (9) self-connect — this port is connected to another port on the same device. This port cannot be used until the condition clears. • (10) port-moved — a different port has been connected at the far end. The trunking protocol will restart. • (11) multiple-lan-types — several LAN types have been connected on the same device. Link Ordinal Displays the position of the port’s link within its trunk group. Link Count Displays the number of links within the port’s trunk group.
Using ATX Trunking 802.1D Spanning Tree takes about 30 seconds to resolve which ATX ports in a trunk group are to become forwarding ports. As ports within a trunk group become forwarding ports, traffic within the trunk group will be momentarily halted to guarantee the first-in, first-out ordering of Ethernet packets. NOTE Connections between ATX switches must be point-to-point; there cannot be any other devices on those segments. The ATX ports used for trunking can be in any order.
Using ATX Trunking 3-6 The Port Trunking Window
Chapter 4 Using ATX Port Filtering Port filter table information; adding filters; viewing statistics The ATX lets you create custom filters to screen data packets, and discard or forward traffic based on the specified filter criteria. You may have several reasons for creating filters — for example, to monitor traffic patterns as an aid to optimizing your network design, or to evaluate your network security.
Using ATX Port Filtering • Port filters use the physical index number of a bridge port to determine whether traffic is to be screened at the port. These filters are useful for screening packets from being forwarded onto a port’s attached segment. When you use Port filters in combination with Bridge Address Table entries, you can create highly specific filtering conditions to allow certain packets to be forwarded onto a port’s attached segment, or be filtered from it.
Using ATX Port Filtering Port Filters Table Information The scrolling window at the top displays the filters defined for each port and provides the following information about them: Id (Identifier) An identifier assigned to each filter entry in the Port Filters table. This identifier is used to keep track of the number of entries in the Port Filters table, and is incremented or decremented as necessary when filters are added to or removed from the table.
Using ATX Port Filtering Destination Indicates the starting address of a filter based on a range of destination MAC addresses. MAC Addresses must be entered into this window in Canonical (Ethernet) format. NOTE Offset Indicates the hexadecimal offset of a data field filter designed to screen packets based on a portion of the data field. Operator The Boolean operator in effect for this filter.
Using ATX Port Filtering ! CAUTION Remember that the ATX’s performance may be adversely affected if you define a large number of Port filters. Because the ATX has to decode packet data further than it would if no filters were established, the forwarding rate of traffic may be slowed as packets are buffered and decoded.
Using ATX Port Filtering flow as an aid in determining your network design or usage policies before actually reconfiguring the network. • NO (the default) indicates that you want to create an actual filter. 4. You can use Boolean AND/OR operators to logically link a series of filters together for packets received on the defined port. Port filters are maintained in a table. Each filter that you define is assigned an index number in the table — incrementing the previous index number by one.
Using ATX Port Filtering 2.) Click to de-activate (gray-out) the Not In Range check box if you want to filter on source address values within the specified range. This is the default. c. Click in the Mask: text box and type in an address mask value that you want to apply to the source address range. (The default is all FF’s. An F in the mask indicates that you want to match the corresponding bit within the address range; a 0 in the mask indicates a “don’t care” bit.
Using ATX Port Filtering TIP If you want to filter on a single source or destination address, make sure the address is entered in both the Begin and End text boxes. You can use both the source and destination address fields to filter data based on equipment vendor, since the first three bytes of a MAC address are unique to a specific vendor. For example, Sun workstations have a MAC address with the first three bytes 08:00:20.
Using ATX Port Filtering 4.) Select FRAME if you want the field offset value relative to the end of the Ethernet frame type (regardless of whether or not the frame type is SNAP encapsulated). For example, for IP packets, a field offset of 0 indicates the start of the IP header. e. If you want to use a data mask, click in the Mask: text box and type in an eight octet hexadecimal mask that will be applied to the eight octets within the packet before they are compared to the specified field value.
Using ATX Port Filtering b. NOTE Click in the Threshold: text box, and enter the number of packets matching this filter that must be detected within the given interval for the trap to be generated. If you are monitoring the ATX, you must set the configAlarmDynamic MIB OID (1.3.6.1.4.1.97.3.3.1.12) to 1 (True) for the ATX to generate the trap. 10. Once you have finished specifying the parameters for the filter, click on Add. The filter and its parameters will be displayed in the Port Filters list.
Chapter 5 Workgroup Configuration Workgroups explained; adding and deleting workgroups from this window The virtual workgroups feature of the ATX allows you to restrict multicast or broadcast traffic from being propagated through every bridge port on your device. This optimizes bandwidth by limiting the subnet broadcast traffic — such as IP ARPs, or IPX Get Nearest Server Requests and Service Advertisement Protocol packets — to only those ports that require the traffic.
Workgroup Configuration - If the ATX determines that the port does not belong to any workgroup configured for the received packet’s type, the packet will again be sent out through all other ports on the bridge that are in a Spanning Tree Forwarding state. - If the ATX determines that the port is a member of a single workgroup configured for the received packet’s type, the packet will only be forwarded to the other ports that are members of that same workgroup.
Workgroup Configuration NOTE If the received packet has a class D IP address indicating a multicast group address (224.0.0.0 through 239.255.255.255), the workgroups will not be used and the normal IP forwarding rules apply. If the workgroups are configured for an IPX network: 1. If the destination IPX network of the packet is zero, then all IPX workgroups for the receiving port are combined. 2.
Workgroup Configuration You can both view existing workgroups and configure new workgroups from this window. The Workgroup Table at the top of the window lists each existing workgroup along with its configuration information. The lower section of this window allows you to set-up the parameters of your workgroup, including Name, Type, and IP or IPX network identifier and contains a Port Selection box in which you can choose the ports that will be included in the workgroup.
Workgroup Configuration b. • IP Address — you must enter a network IP address for the member ports’ subnetwork. If the subnet identifier of the received packet’s destination IP address matches the set workgroup IP address (when compared to any set IP Mask), the packet will only be forwarded to the other member ports of the workgroup.
Workgroup Configuration 5-6 Configuring a Workgroup
Chapter 6 ATX Port Mirroring Using Port MIrroring; configuring port mirroring locally; configuring port mirroring remotely The Port Mirroring utility allows you to capture network traffic appearing on one or more of the ATX’s ports, and to reproduce that traffic on a designated “diagnostic” port for monitoring purposes. The diagnostic port may be another of the ATX’s ports (Ethernet, Token Ring, or FDDI), or a remote port on another ATX in your network.
ATX Port Mirroring Oversized packets might be produced when mirrored traffic is sent from an 802.5 interface to an 802.3 interface (i.e., an 802.5 frame, when mirrored to an 802.3 interface, must have its MAC address reversed and a length field must be added; the translation process may increase the frame size so that it exceeds the size of the maximum transport unit (MTU) of the diagnostic port).
ATX Port Mirroring Figure 6-1. The ATX Port Mirroring Window The Port Mirroring window features a port selection area (at the right side of the window), with selection buttons for each of the ATX’s managed ports. NOTE The local management port (i.e., port 1) is not available for mirroring, and is therefore grayed out. The left side of this window features fields which allow you to select the mirror type (local, remote, or off), and specify a diagnostic port.
ATX Port Mirroring If the port(s) being mirrored and the diagnostics port are both local 1. In the mirrored ports selection area, click on the selection button(s) for each port that you wish to mirror. 2. In the Mirror Type field, click on the menu button to display the Port Type selection menu. Select Local from the menu. To halt mirroring for the selected ports, select Off. 3.
ATX Port Mirroring 5. Using the Port Filtering window, establish any mirror filters that you wish to apply to the mirrored traffic. See Chapter 3, Using ATX Port Filtering, for details on setting up your mirror filters. 6. Click on Set to apply your port mirroring configuration. Your configuration will be reflected in the window. From the device where the diagnostic port is located 1. Make certain that there are no port buttons selected in the port selection area. 2.
ATX Port Mirroring 6-6 The Port Mirroring Window
Chapter 7 IPX Routing Tables IPX Statistics defined The IPX Routing Tables window displays statistics containing information about IPX Routing on your ATX. The ATX’s ports can be configured to route IPX (Internetwork Packet Exchange) packets, see the IPX Routing section in Chapter 2, for more information.
IPX Routing Tables Figure 7-1. IPX Routing Tables window IPX Statistics The window consists of three separate tables: IPX Interface, IPX Route, and IPX SAP. Each section contains a different table of IPX routing information. IPX Interface This section displays the ATX’s IPX routing attributes on a per interface basis. Each entry defines the IPX routing information used by the interface. An entry is displayed for each interface non-dependent of whether or not the interfaces are configured for IPX routing.
IPX Routing Tables Framing Displays the link-level framing to be used for this interface: • ethernet 802.3 — the default for ethernet links. This framing will use an 802.3 length followed by the IPX header and data. • ethernet 2 —the same framing as 802.3, except the third field (the length field in 802.3) is used to store a value representing the type of transport packet that is encapsulated within the Ethernet packet. • ieee802.2 — the default for non-ethernet links. 802.
IPX Routing Tables Port# Displays the interface index of the port on your ATX through which the next hop of the route should be reached. Hop Count Displays the secondary routing metric for this route, which is the number of routers that must be traversed to reach the destination. Next Hop Displays the IPX node address of the next hop of this route, if indirect. If direct this field displays the address of the local interface. Age Displays the number of seconds since the route was last updated.
IPX Routing Tables NodeID Displays the IPX node address of the server. When you are running Netware 2.x this corresponds with a physical MAC address and is displayed in canonical bit order. If you are using Netware 3.x the node address is typically 000000000001. Socket Displays the socket number to which service requests should be addressed. Hop Count Displays the number of routers (hops) that must be traversed in order to reach this server.
IPX Routing Tables 7-6 IPX Statistics
Index A F Admin 2-8 Admin/Link 2-8 Age 7-4 all 5-4 ARP Source Route 2-22 ARP Translate 2-21 Field Offset 4-8 Filter Statistics 4-10 Firmware, revision 2-4 Framing 7-3 B Boolean operator 4-4, 4-6 Boot Prom, revision 2-4 Bridge 2-8 Bridge Configuration 2-17 Bridge Number 2-19 Bridge status mode 2-8 Broadcast Protection 2-16 buffer space 2-28 C Cancel button 1-4 Clear button 3-4 color codes 2-9 color-coded port display 2-2 command buttons 1-5 Connection Status 2-3 D destination address 7-3 Device Menu 2
Index L Last Change 3-4 Last Error 3-3 Link Count 3-4 Link Ordinal Displays the position 3-4 link-level framing 7-3 Load 2-26 Local 6-4 Local Switching 2-17 Location 1-4 Logical Status 2-24 M MAC address 1-4, 2-3 menu structure 2-4 MIB components 2-10 MIM type 2-11 Mirror Entry 4-3 Mirror Exit 4-3 Mirror filter 4-3 mirror filters 6-1 Mirror Type 6-4 Multicast (Non-Unicast) 2-27 N Netbios Source Route 2-22 network address 7-4 Next Hop 7-4 NodeId 7-5 Non-Unicast (Multicast) 2-27 O OFF 2-8 OK button 1-4 ON
Index T technical support 1-5 Thresh Number 2-17 Thresh Time 2-17 Tick Count 7-4 to change the status view of your ports 2-8 Translation 2-20 Translation button 2-20 Transmit BPDUs 2-19 Transmit Queue Size 2-28 Troubleshooting 2-28 Truncate Oversized Packets 6-4, 6-5 Trunking 3-1 trunking table 3-2 type of service 7-4 U Unicast 2-27 Unknown Protocol 2-28 Up Time 2-24 UpTime 2-3 Uptime 1-4 Utilities Menu 2-6 W work group type 5-4 Work Groups 5-3 Index-3
Index Index-4
