Cabletron Systems 9A128-01™ Management Module Guide for Microsoft® Windows™ Title Page
Notice Cabletron Systems 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 Cabletron Systems 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 This Guide .......................................................................................................... 1-1 Related Reading ............................................................................................................ 1-2 Software Conventions .................................................................................................. 1-3 Common Window Fields.............................................................................
Contents Configuring Connections ............................................................................................. 3-4 Adding a New Connection................................................................................... 3-4 Deleting a Connection ........................................................................................... 3-5 Chapter 4 FDDI Management Configuration..............................................................................................................
Chapter 1 Introduction How to use this guide; getting help; software conventions; related reading; firmware versions Welcome to the Cabletron Systems MMAC-Plus™ Remote Management for the 9A128-01™ User’s Guide. We have designed this document to serve as a simple reference guide for using MMAC-Plus Remote Management for the 9A128-01 FDDI/ATM bridge module. You should read through this guide to fully understand SPECTRUM Element Manager remote management for the 9A128-01.
Introduction Installing and Using SPECTRUM Element Manager Guide, Using MMAC+ Remote Management, User’s Guide and SPECTRUM Element Manager Tools Guide. Chapter 1, Introduction, provides a list of related documentation, describes certain software conventions, and shows you how to contact Cabletron Systems’ Global Call Center. A brief description of the 9A128-01 module is also provided.
Introduction Software Conventions The SPECTRUM Element Manager 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. A brief description of some of the most common elements appears below; note that the information provided here is not repeated in the descriptions of specific windows and/or functions.
Introduction Location Displays the user-defined location of the device. The location is entered through the System Group window; see the Generic SNMP User’s Guide for details. MAC Address Displays the manufacturer-set MAC address of the channel through which SPECTRUM Element Manager is communicating with the device. MAC addresses are factory-set and cannot be altered.
Introduction From the Help menu accessed from the Module View window menu bar, you can access on-line Help specific to the Module View window, as well as bring up the Chassis Manager window for reference. Refer to Chapter 2 for information on the Module View and Chassis Manager windows.
Introduction Firmware Versions Supported SPECTRUM Element Manager support for the 9A128-01 module has been tested against firmware versions up to 2.10.13. If you have an earlier version of firmware and experience problems, contact Cabletron Systems Global Call Center for upgrade information. NOTE 1-6 As a general rule, firmware versions for new products are liable to change rapidly; contact Cabletron Systems Global Call Center for upgrade information for the latest customer release of firmware.
Chapter 2 The 9A128-01 Module View Information displayed in the Module View window; the Chassis Manager window; hub management functions The 9A128-01 Module View window is the main screen that immediately informs you of the current configuration of your 9A128-01 via a graphical display of the two bridge ports and the FDDI A and B ports which provide connectivity to the FNB backplane. (The Module View does not currently provide a display which reflects the status of the front panel ATM ports.
The 9A128-01 Module View Viewing Module Information The 9A128-01 Module View window (Figure 2-2) provides a graphic representation of the 9A128-01, including a color-coded port display which immediately informs you of the current configuration and status of each port. FDDI Port Status: Ports 1 and 2 are the A and B port connections to the FNB FDDI backplane. Bridge Port Status: Port 1 = FDDI Backplane interface Port 2 = Front Panel ATM interface Figure 2-2.
The 9A128-01 Module View IP The Module View window title displays the device’s IP (Internet Protocol) Address; this will be the IP address you have used to create the 9A128-01 module in the Chassis Setup window, or the IP address used to create the device icon. IP addresses are assigned via Local Management, and cannot be changed via SPECTRUM Element Manager. Note that although each interface on the 9A128-01 module has its own MAC, or physical, address, only a single IP address is assigned.
The 9A128-01 Module View Time The current time, in a 24-hour hh:mm:ss format, set in the 9A128-01’s internal clock. Date The current date, in an mm/dd/yy format, set in the 9A128-01’s internal clock. NOTE You can set the date and time by using the Edit Device Date and Edit Device Time options on the Device menu; see Setting Device Date and Time, page 2-20, for details.
The 9A128-01 Module View Figure 2-3. 9A128-01 Module View Menu Structure The Device Menu From the Device Menu at the Module View window menu bar, you can access the following selections: • Device Type..., which displays a window containing a description of the device being modeled: 9A128-01, ATM/FDDI Bridge, with 1 ATM and 1 FNB connection • Edit Device Time and Edit Device Date, which allow you to set the 9A128-01’s internal clock. • System Group...
The 9A128-01 Module View • NOTE ATM Connections, which launches the window that allows you to view and configure Permanent Virtual Circuits (PVCs) for the 9A128-01’s front panel ATM interfaces. For more information about configuring PVCs, see Chapter 3, ATM Configuration.
The 9A128-01 Module View NOTE • Connect will display the each FDDI port’s connection status. • LER Estimate will display the cumulative long term average of the bit error rate for each FDDI port, which represents the quality of the physical link. When you select the LER Estimate port status display, this port status display will be reflected in both the bridge and FDDI ports. The FDDI ports will display the LER Estimate while the bridge ports will display the Percent Errors.
The 9A128-01 Module View • Module Type..., which brings up a window containing a description of the 9A128-01 board; see Viewing Hardware Types, page 2-13. • Performance Graph..., which visually displays performance between all bridging ports on the 9A128-01; see Chapter 5, Bridging. • Spanning Tree...
The 9A128-01 Module View Initially, each FDDI port on the 9A128-01 will by default display its current connection status (defined below); to change this status display, select the Connect or LER Estimate option on the Port Status menu, as described in the following section.
The 9A128-01 Module View Bridge Port State If you choose the Bridge Port State mode, a bridge port is considered: • FWD (Forwarding) if the port is on-line and forwarding packets across the 9A128-01 from one network segment to another. • DIS (Disabled) if bridging at the port has been disabled by management; no traffic can be received or forwarded on this port, including configuration information for the bridged topology.
The 9A128-01 Module View FDDI port status view options are: Connection State The Connection State port display form indicates the port’s connection status: • CON (connecting): the port is trying to establish a link, but has not yet been successful. Ports which are not connected and which have not been disabled by management will display this status. • ACT (active): the port has been enabled by management and has successfully established a link.
The 9A128-01 Module View NOTE The bridge ports will display Percent Errors when the LER Estimate port status display is selected. Percent Errors are calculated by the following formula: (ErrorPkts /(ErrorPkts+ValidPkts))*100, where Error Pkts = IfInErrors + IfOutErrors + ifInDiscards + ifOutDiscards + ifInUnknownProtos and ValidPkts = ifInUcastPkts + ifOutUcastPkts + ifInNUcastPkts + ifOutNUcastPkts.
The 9A128-01 Module View The MIBs which provide the 9A128-01’s functionality — both proprietary MIBs and IETF RFCs — are listed here MIB Components are listed here; remember, there’s no one-to-one correspondence between MIBs and MIB Components Figure 2-5.
The 9A128-01 Module View Figure 2-7. Module Type Window Viewing I/F Summary Information The I/F Summary option available from the Device menu lets you view statistics (displayed both graphically and numerically) for the traffic processed by each network interface on your device. The window also provides access to a detailed statistics window that breaks down Transmit and Receive traffic for each interface. To access the I/F Summary window: 1.
The 9A128-01 Module View UpTime The UpTime field lists the amount of time, in a days, hh:mm:ss format, that the device has been running since the last start-up. Index The index value assigned to each interface on the device. Type The type of the interface, distinguished by the physical/link protocol(s) running immediately below the network layer.
The 9A128-01 Module View Bar graphs are only available when Load is the selected base unit. NOTE Raw Counts The total count of network traffic received or transmitted on the indicated interface since device counters were last reset. Raw counts are provided for the following parameters. In Octets Octets received on the interface, including framing characters. In Packets Packets (both unicast and non-unicast) received by the device interface and delivered to a higher-layer protocol.
The 9A128-01 Module View management backplane; 100 Mbps for FDDI; or 155 Mbps for ATM). Load is further defined by the following parameters. In Octets The number of bytes received by this interface, expressed as a percentage of the theoretical maximum load. Out Octets The number of bytes transmitted by this interface, expressed as a percentage of the theoretical maximum load. Rate The count for the selected statistic during the last poll interval.
The 9A128-01 Module View Three informational fields appear in the upper portion of the window: Description Displays the interface description for the currently selected port: Ctron SMB 1, Ctron SMB 10, FDDI, or ATM. Address Displays the MAC (physical) address of the selected port. Type Displays the interface type of the selected port: sdlc (for SMB 1), ethernet-csmacd (for SMB 2), fddi, or atm.
The 9A128-01 Module View Packets Received (Received only) Displays the number of packets received by the selected interface. Transmit Queue Size (Transmit only) Displays the number of packets currently queued for transmission from this interface. The amount of device memory devoted to buffer space, and the traffic level on the target network, determine how large the output packet queue can grow before the 9A128-01 will begin to discard packets.
The 9A128-01 Module View 2. Drag to Find Source Address.... The following window will appear. Figure 2-10. Find Source Address Window 3. In the text field in the middle of the window, enter a valid MAC address in Hex format and then click . If the address is found in the 802.1d Bridge Filtering Database, the port through which the address is communicating will flash in the front panel Module View port display.
The 9A128-01 Module View Figure 2-11. New Time Window 3. Enter the new time in a 24-hour hh:mm:ss format, either by highlighting the field you wish to change and using the up and down arrow buttons, or by simply entering the new value in the appropriate field. 4. Click on to save your changes, or on to cancel. To edit the device date: 1. Click on Device on the Module View window menu bar to access the Device menu; drag down to Edit Device Date, and release. 2.
The 9A128-01 Module View networks connected to the bridge. When you enable a port, the port moves from the Disabled state through the Learning and Listening states to the Forwarding state; bridge port state color codes will change accordingly. To enable or disable a bridge port: 1. Click on the appropriate Bridge Port to display the bridge port menu. 2. Drag down to Enable to enable the selected port, or to Disable to disable the port.
Chapter 3 ATM Configuration Viewing connection data; configuring Permanent Virtual Circuits (PVCs); adding and deleting connection entries The ATM interfaces provided by the 9A128-01 module provides the connectivity that allows you to merge ATM network segments with traditional LAN technologies via the FDDI FNB backplane. Current versions of 9A128-01 firmware use 802.
ATM Configuration Due to a firmware anomaly, Connection Data will not be available in this window for the 9A128. Also, you will not be able to set any new connections or modify any existing connections from this window. Figure 3-1.
ATM Configuration Settings The Settings portion of the window contains a list box which displays information about each of the currently configured PVCs, as well as the fields used to configure new connections: NOTE I/F The device interface on which the PVC was configured. VPI Displays the Virtual Path Identifier assigned to the connection; current versions of 9A128-01firmware allow values from 0 - 3.
ATM Configuration Selecting the Add button either adds a new connection or modifies an existing one, using the parameters entered in the fields below the list box. A confirmation window will appear for both additions and modifications. Selecting the Delete button deletes the selected connection; a confirmation window requires that you confirm the deletion. Selecting Refresh refreshes the connection information displayed in the window.
ATM Configuration 4. In the Encapsulation Type field, click on the down arrow located to the right of the field, and drag down to select the desired encapsulation type. Current versions of 9A128-01 firmware use 802.3 VC-based multiplexing for bridging protocols (designated VC MUX 802.3 Bridged); future versions will add support for additional encapsulation methods.
ATM Configuration 3-6 Configuring Connections
Chapter 4 FDDI Management Configuration; connection policy; station list; and performance The FDDI menu lets you access windows to view FDDI configuration, connection policy, station list, and performance with respect to the single Station Management (SMT) entity which provides each device’s connectivity to the FDDI FNB backplane.
FDDI Management • Station List — With this window you can see the configuration of the ring on which the SMT entity resides, including number of nodes, node addresses (both Canonical and MAC), node class, and current ring topology. • Performance — This window lets you view the number of frames transmitted and received on the ring as detected by the selected SMT entity, along with error and lost frames, and the number of ring initializations. To use the FDDI menu: 1.
FDDI Management MAC State This field indicates the current state of the selected module’s MAC component. (The RMT component of SMT monitors MAC operation and takes actions necessary to aid in achieving an operational ring.) Possible states are: Configuration Not Available There is no MAC on the FDDI ring associated with the SMT entity, or the selected SMT entity is not attached to the main ring through the backplane FNB A and B ports. Ring-Op The ring is functioning normally.
FDDI Management to remove from the ring and conduct a self-test. If the ring does not recover, each subsequent upstream station will be forced to remove from the ring and conduct self-tests until the problem has been corrected. While the test is being conducted, ring management re-enters the isolated state. SMT Version Displays the version number of the Station Management (SMT) entity.
FDDI Management Concentrator M Ports This field displays the number of Master (M) ports on the device that are associated with the selected SMT entity. A Master port is a port that provides a connection for Single Attachment Station (SAS) devices to the FDDI network. The 9A128-01 does not support M ports, so this field will always display 0. Concentrator Non-M Ports This field display the number of non-Master ports (A, B, or S ports) on the device that are associated with the selected SMT entity.
FDDI Management Connection Policy The SMT Connection Policy determines which types of connections are allowed among the four FDDI port types: A, B, M (Master), and S (Slave). FDDI protocol forbids Master—>Master connections; all other connection types are legal, although some are considered to be undesirable. The Connection Policy window, Figure 4-3, lists potential connection types in a “Reject X-Y” format, where X represents the FDDI port on the selected module, and Y represents the attaching node.
FDDI Management Each device has its own connection policy; however, when two devices attempt to connect, their combined established connection policies dictate the connections that will be allowed. In an attempted connection between two nodes, the most lenient policy will determine whether the connection (as long as it is legal) can be made.
FDDI Management Station List The Station List illustrates the configuration of the ring associated with the currently selected SMT entity, including number of nodes on the ring, node addresses (both Canonical and MAC), node class, and ring topology. Figure 4-4.
FDDI Management Stations Panel The Stations Panel displays a list of the stations on the ring to which the selected SMT is connected, in ring sequence from the MAC, along with each station’s node class and current topology. Note that the information displayed in the Station List is static once the window is opened; for updated information, click on the Refresh button.
FDDI Management Performance The Performance window, Figure 4-5, provides graphical and numeric performance statistics for the selected SMT entity, including: • • • • • Transmit Frames Receive Frames Frame Errors Lost Frames Ring Ops Figure 4-5. Performance Window Statistics are displayed in three ways: • By count (i.e., the number detected of each for the selected interval). • By rate (i.e., the number of each per second, as averaged over the selected interval).
FDDI Management Available statistics are: Transmit Frames The number of frames transmitted by the MAC associated with the SMT during the chosen interval. Receive Frames The number of frames received by the MAC associated with the SMT during the chosen interval. Frame Errors The number of error frames detected by the MAC associated with the SMT during the chosen interval that had not been detected previously by other stations.
FDDI Management 4-12 Performance
Chapter 5 Bridging Bridge management overview; the Bridge Status window; enabling and disabling bridging; Bridge Performance Graphs; bridge detail breakdown; the Bridge Spanning Tree window; changing bridge Spanning Tree parameters; the Filtering Database window; configuring the filtering database With SPECTRUM Element Manager’s Bridge Status window, you can view and manage each bridging interface supported by the 9A128-01.
Bridging NOTE By default, the 9A128-01 perform traditional switching (or bridging). Firmware version 2.10.13 and earlier do not support the ability to select SecureFast switching; if you have a later version of firmware, check your hardware manuals to see if your version of firmware supports this feature. The toggle from traditional bridging to SecureFast switching is performed via Local Management; see your Local Management documentation for details.
Bridging Up Time At the top of the Bridge Status window, you can see the time period (in a days, hh:mm:ss format) that has elapsed since the selected module was last reset or initialized. Bridge State on Interface Indicates the state of bridging over the port interface. Note that this state (and its corresponding color-code) will also be reflected on the bridge port display in the Module View window.
Bridging • A Module Type window that contains a description of the 9A128-01 module, see Viewing Hardware Types in Chapter 2 for more information. • A Bridge Performance Graph that displays statistics for traffic across the entire bridge (see Bridge Statistics, page 5-6). A Performance Graph window is also available for each individual interface, by clicking on a port index button to display the port level management options (see Bridge Statistics, page 5-6).
Bridging Figure 5-2. The Duplex Modes Window The main portion of the Duplex Modes window consists of a list of the interfaces available on the 9A128-01 module and their current Full Duplex state: ON indicates that Full Duplex mode has been enabled for the selected interface; OFF indicates that it has not; N/A indicates that Full Duplex is not available. To configure the Duplex Mode for any standard Ethernet or FDDI interface: 1.
Bridging To enable or disable bridging at all ports from the Bridge Status window: 1. Click on to display the bridge menu. 2. Drag down to Enable Bridge to restart bridging across all interfaces, or Disable Bridge to halt bridging across all interfaces. You can also disable bridging across all ports or for an individual bridge port on from the Module View window; see Enabling and Disabling Ports in Chapter 2 for details.
Bridging 2. Drag down to Performance Graph..., and release. The Bridge Performance Graph window, Figure 5-3, will appear. (The individual port Bridge Performance Graph windows are similar, except that they display a graph applicable to the selected interface.) Figure 5-3. Bridge Performance Graph To access the port-level Bridge Performance Graph windows: 1. From the Bridge Status window, click on the appropriate port button ( display the port menu.
Bridging Filtered (Magenta) Filtered The total number of frames filtered by the bridge, at the device or port level. Nothing The Filtered scale is not currently measuring the number of packets filtered by the bridge. Total Errors (Red) Total Errors The total number of errors experienced by all bridging interfaces on the selected module, or by an individual bridge interface. Nothing The Errors scale is currently not measuring error packets coming through the device as a whole or a single port.
Bridging Figure 5-4. The Bridge Detail Breakdown Window The following information is available for the network segments connected to each of the bridge ports on the 9A128-01. The information is expressed both numerically and in pie charts. Each port’s network segment has a corresponding color for its statistics or pie chart segments (LAN 1 = red, LAN 2 = light green, LAN 3 = yellow, LAN 4 = blue). The values given in these fields are cumulative totals read from the 9A128-01.
Bridging Figure 5-5. The Bridge Port Detail Breakdown Window The following information is available for each bridge interface on the 9A128-01; the information is expressed both numerically and in pie charts: Forwarded to The number of frames forwarded by the selected bridge interface to each other interface on the bridge. Forwarded from The total number of frames received by the selected bridge interface from each of the other bridge interfaces.
Bridging Figure 5-6. Interface Statistics Window Three informational fields appear in the upper portion of the window: Description Displays the interface description for the currently selected port. Address Displays the MAC (physical) address of the selected port. Type Displays the interface type of the selected port. The lower portion of the window provides the following transmit and receive statistics; note that the first four statistics are also graphically displayed in the pie charts.
Bridging 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.
Bridging Figure 5-7. The Port Source Addresses Window TIP You can also open the Port Source Addresses window from the Module View by clicking on the bridge interface of interest and selecting the Source Addressing option.
Bridging 2. Type in the new Ageing Time (allowable range is 10 to 1,000,000 seconds; the default is 300 seconds). 3. Click to accept the new Ageing Time, or click window without making changes. NOTE to exit the Note that the Source Addresses Ageing Time is the same as the Ageing Time displayed (and configured) via the Filtering Database window; setting the Ageing Time in the Source Addresses window also changes the time in the Filtering Database window, and vice versa.
Bridging Figure 5-9. Bridge Spanning Tree Window Configuring the Bridge Spanning Tree Window The Bridge Spanning Tree window displays STA parameters and allows you to alter parameters for the selected bridge as a whole, and for each individual bridging interface. The currently selected bridging interface is highlighted in the lower right quadrant of the window. To alter the parameters of another interface, click on the appropriate Port X name listed in the quadrant.
Bridging TIP Part of a bridge’s Identifier is based on its MAC address. In most network installations, the difference between bridge performance may be negligible. You may, however, find your data bottle-necked in installations where both a low-performance bridge and a high-performance bridge are attached to the same LAN segment and the two (or more) bridges have the same Priority component set (e.g., at the default 8000 Hex).
Bridging Hello Time This parameter indicates, in seconds, the length of time the Root Bridge (or bridge attempting to become the Root) waits before resending Configuration BPDUs. The range for this field is 1 to 10 seconds, with a default value of 2 seconds. The Root Bridge sets the Hello Time. Max Age This parameter displays the bridge’s BPDU ageing timer. This controls the maximum time a BPDU can be retained by the bridge before it is discarded.
Bridging Path Cost Displays the cost that this port will contribute to the calculation of the overall Root path cost in a Configuration BPDU transmitted by this bridge port. You can lower a port’s Path Cost to make the port more competitive in the selection of the Designated Port – for example, you may want to assign a lower path cost to a port on a higher performance bridge. The allowable range is 1 to 65535.
Bridging NOTE Any values you set at the bridge will cause a Topology Change flag to be issued in the next Configuration BPDUs it transmits. This will cause the bridged network to immediately recalculate Spanning Tree and change topology accordingly. Changing Bridge Priority To change the part of the bridge address that contains the identifier used in the Spanning Tree Algorithm for priority comparisons: 1. Highlight the Bridge Priority field. 2.
Bridging Changing Max Age Time If the selected module is the Root Bridge or attempting to become the Root, and you want to change the maximum time that bridge protocol information will be kept before it is discarded: 1. Highlight the Max Age field, and type in a new value. 2. Click on Set. The IEEE 802.1d specification recommends that Max Age = 20 seconds; the allowable range is 6 to 40 seconds.
Bridging Changing Path Cost To change the Path Cost: 1. If necessary, select the desired port by clicking the mouse to highlight the port in the lower right quadrant of the window. The lower left quadrant of the window will now allow you to edit parameters for the selected port. 2. Highlight the Path Cost field, and type in a new value from 1 to 65535 decimal (default is 100 decimal). 3. Click on Set. The new path cost will be applied to the port.
Bridging • Permanent entries are addresses that you add to the Static Database (via the Filtering Database window) that are stored in the selected module’s battery-backed RAM. Since they remain in the module on shutdown or restart, they are considered “Permanent.” • Static entries are addresses that you add to the Static Database (via the Filtering Database window). These entries remain in the selected module’s memory until it is shut down.
Bridging Figure 5-10. The Filtering Database Window A scrollable Address Entry panel allows you to: • View the address entries in the Filtering Database. • Alter an entry’s type (e.g., from Learned to Permanent, Dynamic, or Static). • View and configure the bridging action taking place on the packets entering each of the bridging ports.
Bridging The following fields are listed in the top portion of the Filtering Database window: List The List checkboxes indicate whether the associated entry type (Permanent, Static, Dynamic, or Learned) will be displayed in the scrollable table of address entries. A check next to the entry type indicates that it will be displayed. Type Indicates the type of entry in the database. Number Displays the current number of Permanent, Static, Dynamic, and Learned Address entries.
Bridging Receive Port Indicates the number of the port on which a frame must be received in order for the entry’s Port Filtering information to apply. An asterisk (*) indicates that the receive port is promiscuous, and applies to all ports of the bridge (assuming no conflicting entry applies). You can change the receive port, as described in the following section. Port Filtering Indicates the action that will take place at each bridge port when it receives frames from the selected address entry.
Bridging Altering the Ageing Time To alter the Ageing Time for Dynamic and Learned entries: 1. Highlight the Ageing Time field with the cursor. 2. Type in the new Ageing Time (allowable range is 10 to 1,000,000 seconds). Changing the Type of Entry You can change any entry type from its current type (Learned, Self, Permanent, Static, or Dynamic) to either a Permanent, Static, or Dynamic entry. To do so: 1. Click on the shadowed Type button.
Bridging 2. In the Filter Address field, type in the address (Hex format) for which you desire bridging. Be sure to add “-” as a separator between each byte in the address. 3. In the Receive Port field, type in the port at which the address must be detected for bridging to take place. If you enter a value of 0 in this field, the Receive Port is considered promiscuous (i.e., any port), and will be designated by an * in the Address Entry panel. 4. Click on OK. 5.
Bridging 5-28 Filtering Database
Index A Absolute 4-10 ACT (active) 2-11 Address Mode 4-8 Ageing Time (bridging) 5-22, 5-24 ATM 3-1 B BLK (Blocking) 2-10 Blocking 5-3, 5-5 Board Menus 2-7 Boot Prom, revision 2-3 bridge port state 5-3 Bridge Priority 5-15 Bridge Protocol Data Units (BPDUs) 5-14 bridging interface status 5-2 BRK 2-10 Broken 5-3 buffer space 2-18, 5-12 C Cabletron Systems Global Call Center 1-5 Cancel button 1-4 channel trunking 3-3 claim token process 4-4 CMT 4-1, 4-5 color codes 2-12 color-coded port display 2-2 command
Index H Hello Time 5-17 Help button 1-4 Help Menu 2-7 Hold Time 5-17 Not Available 4-3 Number of MACs 4-5 Number of Nodes 4-8 O OK button 1-4 I I/F Summary interface performance statistics 2-15 I/F Summary window 2-14 Interface Group window 2-17 interface type (bridging) 5-3 IP address 1-3, 2-3 Isolated 4-3 L L.
Index Spanning Tree Algorithm 5-14 Static Database 5-21 Static entries 5-22 Station List 4-8 Switched Virtual Circuits (SVCs) 3-1 T technical support 1-5 T-Neg. 4-4 Topology 4-9 Topology Change 5-18 Trace 4-3 Transmit Frames 4-11 Transmit Queue Size 2-19, 5-12 transparent bridges 5-21 T-Req. 4-4 twisted ring 4-6 U Unicast 2-18, 5-11 Unknown Protocol 2-18, 5-12 Up Time 2-15, 5-3 Upstream Neighbor 4-9 UpTime 2-3 Utilities Menu 2-7 V VC MUX 802.
Index Index-4
