IRM2 User's Guide
Notice Enterasys Networks 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 Networks 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 Manual........................................................................................................ 1-1 Related Manuals............................................................................................................ 1-2 Software Conventions .................................................................................................. 1-3 Using the Mouse ....................................................................................
Contents Chapter 3 Statistics Statistics ..................................................................................................................... ..... 3-1 Accessing the Statistics Windows........................................................................ 3-2 Statistics Defined.................................................................................................... 3-3 Using the Total and Delta Radio Buttons ...........................................................
Contents Chapter 8 Redundancy (Continued) Reconfiguring a Circuit ................................................................................................ 7-9 Changing Port Status........................................................................................... 7-10 Resetting a Circuit.................................................................................................
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Chapter 1 Introduction How to use this guide; related guides; software conventions; getting help; IRM2 firmware versions Welcome to the Enterasys Systems NetSight Element Manager for the IRM2 User’s Guide. We have designed this guide to serve as a simple reference for using NetSight Element Manager for the IRM2. The IRM2 is an IEEE 802.3-compliant repeater module designed to be installed in a Cabletron Systems Multi Media Access Center (MMAC®) hub, either with or without the Flexible Network Bus (FNB™).
Introduction Chapter 2, The IRM2 Chassis View, describes the visual display of the IRM2-controlled chassis and explains how to use the mouse within the Chassis View; the operation of several chassis-level management functions — such as changing the chassis display, naming boards, enabling and disabling boards and ports, and setting device date and time — is also described here.
Introduction Software Conventions NetSight Element Manager’s 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 • Double-clicking means to position the mouse pointer over the indicated target, then press and release the mouse button two times in rapid succession. This is commonly used to activate an object’s default operation, such as opening a window from an icon. Note that there is a distinction made between “click twice” and “double-click,” since “click twice” implies a slower motion.
Introduction IP Address Displays the device’s IP (Internet Protocol) address. This will be the IP address used to define the device icon. IP addresses are assigned via Local Management for the IRM2; they cannot be changed via NetSight Element Manager. 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.
Introduction An , , or button appears in windows that have configurable values; it allows you to confirm and SET changes you have made to those values. In some windows, you may have to use this button to confirm each individual set; in other windows, you can set several values at once and confirm the sets with one click on the button. The button brings up a Help text box with information specific to the current window. For more information concerning Help buttons, see Getting Help, page 1-6.
Introduction Getting Help from the Enterasys Global Call Center If you need technical support related to NetSight Element Manager, contact the Enterasys Global Call Center via one of the following methods: By phone: (603) 332-9400 24 hours a day, 365 days a year By mail: Enterasys Networks Technical Support Rochester, NH 03866-5005 By Internet mail: support@ctron.com FTP: ftp.ctron.com (134.141.197.
Introduction 1-8 Getting Help
Chapter 2 The IRM2 Chassis View Information displayed in the Chassis View window; the physical and logical chassis views; the Chassis Manager window; Hub management functions The IRM2 Chassis View window is the main screen that immediately informs you of the current configuration of your MMAC chassis via a graphical display of the chassis front panel.
The IRM2 Chassis View Viewing Chassis Information The IRM2 Chassis View window (Figure 2-1) provides a graphic representation of the IRM2 and the hub in which it is installed, including a color-coded port display which immediately informs you of the current configuration and status of all the boards and ports installed in the MMAC chassis. Figure 2-1.
The IRM2 Chassis View NOTE Note that up to 24 ports can be displayed simultaneously on a module. If a module has a higher port density than 24 ports, Up and Down arrows will appear at the top and bottom of the port stack so that you can scroll through the remaining ports.
The IRM2 Chassis View MAC The physical layer address assigned to the IRM2 interface with which NetSight Element Manager is communicating. MAC addresses are hard-coded in the device, and are not configurable. Boot Prom The revision of BOOT PROM installed in the IRM2. Firmware The revision of device firmware stored in the IRM2’s FLASH PROMs. Time The current time, in a 24-hour hh:mm:ss format, set in the IRM2’s internal clock. Date The current date, in an mm/dd/yyyy format, set in the IRM2’s internal clock.
The IRM2 Chassis View Figure 2-2. IRM2 Chassis View Menu Structure 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 (i.e., IRM2). • Edit Device Time... and Edit Device Date..., which allow you to set the IRM2’s internal clock. • System Group..., which allows you to manage the IRM2 via SNMP MIB II.
The IRM2 Chassis View • I/F Summary, which displays a window showing statistics for the traffic processed by each network interface on your device. Refer to Viewing I/F Summary Information, page 2-18. • Exit, which closes the IRM2 Chassis View window. The View Menu The View menu lets you change the information displayed in the Chassis View: • Logical brings up the default display, which contains port status information and provides access to board- and port-level menus.
The IRM2 Chassis View • Find Source Address..., which allows you to locate the port through which a MAC address is communicating; see Chapter 4, Source Address Functions. • Lock/Unlock Ports..., which allows you to protect the hub from unauthorized access; see Chapter 4, Source Address Functions. • Alarm Limits..., which launches the repeater-level alarms window; see Chapter 5, Alarm Limits, for alarm configuration information. • Trap Selection...
The IRM2 Chassis View • Name..., which allows you to assign a name to the selected board; this name will be displayed in many board-level windows. See Setting a Board Name, page 2-17, for details. • Enable, which allows you to enable all ports on the selected board; see Enabling Boards, page 2-17.
The IRM2 Chassis View NOTE In NetSight Element Manager, the polling interval is set via the Tools—>Options window available from the primary window menu bar. Refer to the NetSight Element Manager User’s Guide for full information on setting device polling intervals. Port Type If you choose Port Type, each port status box will display that port’s topology status: station or trunk.
The IRM2 Chassis View NOTE Because BNC thin coax and AUI ports do not support the link feature, the displayed Admin/Link, Admin, and Link status conditions will not always follow the pattern described above. Under Admin/Link status mode, BNC ports will display as ON if there is a valid connection and the port has been enabled; OFF if the port has been disabled; and SEG if the port has experienced 33 consecutive collisions or if there is no cable attached.
The IRM2 Chassis View Select one of the Errors options to see what percentage of the total packets received by each active port during the last polling interval was of the error type you selected. This percentage reflects the number of errors generated by devices connected to that port in relation to the total number of packets processed by the port (errors ÷ [errors + packets]).
The IRM2 Chassis View Figure 2-3. The Physical Chassis View The Chassis Manager Window Like most networking devices, Enterasys’ and Cabletron’s devices draw their functionality from a collection of proprietary MIBs and IETF RFCs. The Chassis Manager window, Figure 2-4, is a read-only window that displays the MIBs and the MIB components — and, therefore, the functionality — supported by the currently monitored device. To view the Chassis Manager window: 1.
The IRM2 Chassis View MIB Components are listed here; for first generation devices like the IRM2, all MIB information is organized into a single component The MIBs which provide the IRM2’s functionality — both proprietary MIBs and IETF RFCs — are listed here Figure 2-4.
The IRM2 Chassis View 2. Drag down to Module Type.... A Module Type text box, similar to the examples shown in Figure 2-6, will appear describing the board type. If Module Type is not supported by the selected board, “Unknown” will appear in the text box. Figure 2-6.
The IRM2 Chassis View 2. 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. 3. Click on to save your changes, or on to cancel. To edit the device date: 1. Click on Device on the Chassis View window menu bar to access the Device menu; drag down to Edit Device Date..., and release. The following change window, Figure 2-8, will appear. Figure 2-8.
The IRM2 Chassis View To do so: 1. Select Repeater from the Chassis View menu; drag down to Restart... and release. The IRM2 will be restarted as if it had just been powered up. Configuring the Front Panel Repeater Port Association Using the Port Association option for the IRM2, you can set which of the IRM2’s front panel ports will act as a repeater interface for a connected network segment. ! CAUTION Before selecting this option, be sure that you will not disrupt network activity.
The IRM2 Chassis View 3. Click on . The selected port association will take effect; one port will become the active repeater interface and the other will be administratively disabled. The Chassis View display for the IRM2 module will update to reflect the change. Setting a Board Name From the Board menus on the Chassis View window, you can change the names of the manageable boards installed in your MMAC. To name a board: 1. Click on the appropriate Board number to access the board menu. 2.
The IRM2 Chassis View Enabling and Disabling Ports From the Port menus on the IRM2 Chassis View window, you can enable and disable any individual ports. To enable or disable a port: 1. Click on the desired Port button. The Port menu will appear. 2. Click on Enable to enable the port, or Disable to disable the port. Your port will now be enabled or disabled as desired.
The IRM2 Chassis View 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 following descriptive information is provided for each interface: 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.
The IRM2 Chassis View After you select a new display mode, the statistics (and graphs, where applicable) will refresh to reflect the current choice, as described below. 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.
The IRM2 Chassis View Out Octets The number of bytes transmitted by this interface, expressed as a percentage of the theoretical maximum load. When you select this option, a Bar Graph field will be added to the interface display area; this field is only available when Load is the selected base unit. Rate The count for the selected statistic during the last poll interval. The available parameters are the same as those provided for Raw Counts.
The IRM2 Chassis View TIP You can also access this information via the I/F Statistics option available on the individual port menus; see Chapter 3 Statistics, for more information. 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.
The IRM2 Chassis View Unknown Protocol (Received only) Displays the number of packets received which were discarded because they were created under an unknown or unsupported protocol. 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 IRM2 Chassis View Testing and Disabling the Current Interface With the Test button you can test the current interface (e.g., by performing a loopback or some other transmission test). With the Test and Disable buttons, you can test or disable the current interface. The operational states of these two options are: TIP Test The interface will be in some test mode and no operational packets can be passed. Disable The interface will be in a closed state.
Chapter 3 Statistics Accessing the Statistics, Timer Statistics, Summary Statistics, and Performance Graph windows; statistics defined; using the Total and Delta radio buttons; setting the Timer Statistics time interval; configuring the performance graphs The statistical information collected and stored by your IRM2 provides you with detailed information about how much traffic your network (or a segment thereof) is experiencing, including the sizes and types of packets that make up that traffic, and how m
Statistics NOTE The Active Users and Broadcasts selections are not available for early generation IRM2s equipped with pre-version 2.00 release firmware. • • Transmit Collisions Receive Collisions • • Out-of-Window (OOW) Collisions Giant Packets • • • Alignment Errors CRC Errors Runts The pie chart to the right of the statistics lets you graphically view your statistics.
Statistics To open the board-level Statistics window: 1. Click on the appropriate Board number to display the board menu. 2. Drag down to Statistics... and release. The board-level Statistics window will appear. To access the port-level Statistics window: 1. Click on the appropriate Port to display the port menu. 2. Drag down to Statistics... and release. The port-level Statistics window will appear.
Statistics Collisions Transmit Receive Hard Errors OOW Collisions Giants Soft Errors Alignment Errors Displays the number of transmit collisions detected by the device, board, or port. Transmit collisions are those the IRM2 detects while transmitting a packet, which means the IRM2 has transmitted one of the colliding packets. Displays the number of receive collisions detected by the device, board, or port. Receive collisions are those detected by the IRM2 while it is receiving a transmission.
Statistics To choose Total or Delta: 1. Click on the Total radio button; after the completion of the current polling cycle plus one complete polling cycle, the screen will display the total count of statistics processed since the most recent start-up of the IRM2. 2. Click on the Delta radio button; after the completion of the current polling cycle plus two more polling cycles, the screen will display the count of statistics processed during the last poll interval.
Statistics 1. Click on Repeater on the Chassis View menu bar to display the repeater menu. 2. Drag down to Timer Statistics... and release. The Repeater Timer Statistics window, Figure 3-2, will appear. Figure 3-2. Timer Statistics Window To open the board-level Timer Statistics window: 1. Click on the appropriate Board number to display the board menu. 2. Drag down to Timer Statistics... and release. The board-level Statistics window will appear. To access the port-level Timer Statistics window: 1.
Statistics Bytes Displays the elapsed, average, or peak number of bytes processed by the device, board, or port during the user-defined time interval. Setting the Timer Statistics Interval To set the Timer Statistics time interval: 1. Click on the clock symbol ( ) next to the Interval text box. The New Timer Interval text box, Figure 3-3, will appear. Figure 3-3. New Timer Interval Text Box 2. Using the mouse, click to highlight the hour field in the New Timer Interval text box. 3.
Statistics • Percent Errors –– errors detected, as a percentage of total packets • Percent Collisions –– collisions detected, as a percentage of total packets The dynamic bar graphs allow you to immediately observe the amount of activity experienced by each board or port; the scale displayed at the top right of the window indicates the percentage of activity represented by the bar. Accessing the Summary Statistics Windows To access the device-level Summary Statistics window: 1.
Statistics 2. Drag down to Summary Statistics... and release. The Board Summary Statistics window, Figure 3-5, will appear. Figure 3-5. Board-level Summary Statistics Window The board-level Summary Statistics window also has three fields: NOTE • The index number assigned to each port. • The current status of the port: ON, OFF, SEG, or NLK. These status conditions and their associated colors are described in detail in Chapter 2 of this manual.
Statistics 2. Drag to select the desired mode: Percent Load, Percent Errors, or Percent Collisions. The button label will change to reflect the new mode, and the bar graph will refresh to display the current value. Performance Graph With the Repeater Performance Graphs, you can use real-time statistics reporting to see at a glance the amount of traffic going through your IRM2 at the repeater, board, or port level.
Statistics To open the board-level Performance Graph window: 1. Click on the appropriate Board number to display the board menu. 2. Drag down to Performance Graph... and release. The board-level Performance Graph window will appear. To access the port-level Performance Graph window: 1. Click on the appropriate Port to display the port menu. 2. Drag down to Performance Graph... and release. The port-level Performance Graph window will appear.
Statistics transmitting without first listening for carrier sense (and beginning its illegal transmission more than 51.2 µs after the first station began transmitting). Nothing Packets Packets The Errors scale is not currently measuring any type of error packets. The total number of good packets detected by the device, board, or port. Remember, this packet count does not include error packets.
Chapter 4 Source Address Functions Using the Find Source Address window; locking and unlocking ports; viewing the source address table; setting the Device Ageing Time Each Cabletron repeater device maintains a Source Address List, or Table (SAT), for each port. This table contains the MAC address for each device that is communicating through that port on the IRM2-controlled hub.
Source Address Functions Figure 4-1. Find Source Address Window 3. Enter the Ethernet address you wish to find in a hex XX-XX-XX-XX-XX-XX format in the text box. 4. Click ; if you entered the MAC address incorrectly, a window will appear indicating that you entered an invalid address. Enterasys’ management application will check the device’s database of source addresses; if the address is found, the port associated with the address will begin to flash.
Source Address Functions There are two ways to determine whether a port’s topology status is currently station or trunk: 1. Bring up that port’s Statistics window, and check the Active Users field. If Active Users is zero or one, the port is in station status; if it is two or more, the port is in trunk status. or Step 1. Bring up that port’s Source Addressing window; if zero or one source addresses appear, the port is in station status; if two or more appear, the port is in trunk status.
Source Address Functions NOTE You must have superuser (SU) privileges to lock or unlock ports; i.e., the community name entered in the device’s Describe window must provide SU access to the device. When port locking is enabled, the Locked icon ( ) will display in the Chassis View window. When Port Locking is disabled, the Unlocked icon ( ) will display in the Chassis View window.
Source Address Functions Figure 4-3. Port Source Addresses Window The source address list window displays the MAC addresses of all devices that have transmitted packets through the selected port within a time period less than the SAT’s defined ageing time (addresses that have not transmitted a packet during one complete cycle of the ageing timer are purged). The Ageing Time is user-configurable; see Setting the Device Ageing Time, page 4-5.
Source Address Functions Figure 4-4. Device Ageing Time Window 2. Enter the new Ageing Time in minutes. Allowable times are 1 to 1440. 3. Click to accept the new Ageing Time, or click Cancel to exit the window without making any changes.
Chapter 5 Alarm Limits Accessing the repeater, board, and port Alarm Limits windows; setting alarm limits based on percentage of collisions, packet count, broadcast packet count, or percentage of errors; setting the alarm limits time interval; using the Disable Board/Disable Port on Alarm option Using the Alarm Limits windows, you can configure alarm limits for the IRM2 at the repeater, board, and port levels; these alarms will notify you — via traps sent to your Enterasys management application’s alarm l
Alarm Limits Figure 5-1. Repeater Alarm Limits Window To access the board-level Alarm Limits window: 1. Click once on the appropriate Board number in the Chassis View to display the board menu will appear. 2. Drag down to Alarm Limits... and release. The Board Alarm Limits window, Figure 5-2, will appear.
Alarm Limits Figure 5-2. Board Alarm Limits Window To access the port-level Alarm Limits window: 1. Click once on the appropriate Port to display the port menu. 2. Drag down to Alarm Limits... and release. The Port Alarm Limits window, Figure 5-3, will appear.
Alarm Limits . Figure 5-3. Port Alarm Limits Window When using the Alarm Limits screens to set your alarm thresholds, keep in mind that repeater-level thresholds will apply to all traffic received by the entire IRM2-managed repeater segment; board-level thresholds will apply only to traffic on the selected board; and port-level thresholds will apply to traffic on the specific port. The Alarm Limits window displays the following fields: NOTE Some IRM2s running older revisions of firmware (version 1.
Alarm Limits packets were collisions (15 collisions for every good packet). Therefore, the lower you set your threshold value, the lower the percentage of collisions per good packet you are allowing. Remember, a repeater-level alarm will calculate the number of collisions per good packet based on all traffic received on the repeater channel; a board- or port-level alarm will make the calculation based on traffic on the specific board or port only.
Alarm Limits OOW Collisions If this check box is selected, all collisions out of the standard collision window (51.2 µs) will be included in calculating the overall percentage of errors. Out-of-window collisions are typically caused by faulty network design. Giants If this check box is selected, the number of giant packets will be included in calculating the overall percentage of errors. A giant packet exceeds the maximum Ethernet frame size of 1518 bytes (excluding the preamble).
Alarm Limits Figure 5-4. Alarm Interval Window 2. Highlight the hour text box (the first box to the left). 3. Click on the up and down arrows to change the time, or type in the new hour time interval. 4. Repeat steps 2 and 3 to set the minutes and seconds of your new time interval. Remember, the maximum time setting is 23 hrs/59 minutes/59 seconds. 5. Click on . The new Alarm Interval you have set will appear in the within: text box. 6.
Alarm Limits 5. Repeat steps 1-4 for each type of alarm you wish to configure. 6. Click on to save the configuration, then click Cancel to close the window. Be sure to click on before closing the window, or your changes will not be saved. Your Alarm Limits are now set. Any condition that exceeds these alarm limits will generate an alarm, and disable that board or port, if so configured.
Chapter 6 Trap Selection Accessing the Trap Selection window; link state traps, segmentation traps, and source address traps defined; enabling and disabling traps Among the traps which Enterasys and Cabletron devices are designed to generate are traps which indicate when a repeater port gains or loses a link signal (Link State Traps); when the repeater segments (disconnects) a port due to collision activity, and when a segmented port becomes active again (Segmentation Traps); and several traps that result
Trap Selection 2. Drag down to Trap Selection... and release. The Repeater Trap Selection window, Figure 6-1, will appear. At the repeater level, a check box indicates the state of settings for all ports that are on the device. The check box will be: Checked — If all port trap settings are enabled for a given trap. Blank — if all port trap settings are disabled for a given trap. A Gray check box will also appear as you toggle a trap between the enabled and disabled states.
Trap Selection Segmentation Traps Enterasys’ and Cabletron’s Ethernet repeaters count collisions at each port. If a port experiences 32 consecutive collisions, or if the port’s collision detector is on for more than 2-3 µs, the repeater segments the port to isolate the source of the collisions from the rest of the network. When the repeater segments a port, it generates a portSegmenting trap.
Trap Selection when management intervention has re-enabled a port or ports previously disabled in response to a port security violation; the interesting information is hub and port index. Again, see Lock/Unlock Ports in Chapter 4 for more information. Configuring Traps The current status (enabled or disabled) for Link State, Segmentation, and Source Address traps will always be displayed when you first the port-level Trap Selection window.
Chapter 7 Redundancy Accessing the redundancy window; establishing a redundant circuit; activating the circuit; testing the circuits; reconfiguring a circuit; changing port status; resetting a circuit The redundancy application allows you to establish redundant circuits on the IRM2’s repeater segment to ensure that vital network connections do not fail.
Redundancy Figure 7-1. Redundancy Configuration Window Figure 7-2. Chassis View in Redundancy Mode The Redundancy Configuration window, Figure 7-1, allows you to add or delete a redundant circuit for your IRM2, as well as Rename, Reset, Enable, Disable, or reconfigure the Retry Count for any circuits you have configured. The altered Chassis View display, Figure 7-2, provides the means by which you assign primary and backup ports to each circuit.
Redundancy Establishing Redundancy You establish redundancy for the selected IRM2 by: • Ensuring that, until redundancy is configured and enabled, only the primary links are physically connected to the network.
Redundancy Figure 7-3. Circuit Name Window 3. Enter your new name in the text field, and click OK. The new name will appear in the Current Circuit text box. To exit the window without accepting any changes, click Cancel. Entering the Physical Addresses of Devices to be Polled You must designate the physical address of at least one intelligent Enterasys or Cabletron device on your network to poll; the maximum number of addresses per circuit is eight.
Redundancy Repeat steps 1-3 to designate all devices you wish to poll to test that the current link is active, up to the maximum number permitted by your device’s firmware. 4. To delete an address that has already been added to the list, highlight the entry and click on Delete; the address will be removed from the list. Assigning Backup Ports and Port Priority to the Circuit Each circuit contains one primary port and several additional ports that serve as backups.
Redundancy Setting the Polling Interval and Number of Retries Once you have configured your redundant circuits, you can set the parameters that the IRM2 uses to monitor them, including the interval (in seconds) between polls of the physical addresses on your Polling Addresses list, and the number of times to retry polling for each circuit.
Redundancy 2. Enter the number of polls that must entirely fail before the redundant circuit switches to the next backup port, then click . The range is 1–16; the default value is 3. Note that the retry count you set here applies only to the currently selected circuit; you must specify a retry count for each individual circuit.
Redundancy ! Be sure to physically connect your backup ports once your redundant circuit has been enabled! CAUTION To disable a circuit: 1. Use the drop-down list to display the appropriate circuit in the Current Circuit text box; note that the current status of the selected circuit (enabled or disabled) is displayed just below the Current Circuit text box. 2. Click Configure, and drag down to Disable to inactivate the currently selected circuit.
Redundancy To establish a daily time of day for a test: 1. In the upper right hand corner of the Redundancy Configuration window, click on the gray box to the right of the Test Time of Day text box. The Test Time of Day window, Figure 7-7, will appear. Figure 7-7. Test Time of Day Window 2. Using the mouse, click to highlight the hour field in the New Timer Interval text box. 3. Using the arrow keys to the right of the text box, scroll to change the hour, as desired. 4.
Redundancy Redundancy will no longer be in effect for that circuit, and you can now reconfigure and re-enable it. ! CAUTION If you disable a circuit with no plans to re-enable it, remember that all configured backup ports will remain disabled by management until they are manually re-enabled using the port menus from the Chassis View window (in Logical display mode).
Redundancy NOTE Any backup port which has been part of an enabled circuit will remain disabled by management until you turn it back on at the Chassis View window (in Logical mode), so that accidental data loops do not occur. Be sure to disconnect any redundant network links before re-enabling ports. To change a port’s designation from primary to backup, or vice versa: 1. On the altered Chassis View, click on the port whose designation you wish to change. 2.
Redundancy 2. If you select Yes, all circuits will be reset to their initial default status, regardless of whether they are currently enabled or disabled. If you select No, circuits will remain in their current condition. ! CAUTION 7-12 Any backup port which has been part of an enabled redundant circuit will remain disabled by management until you turn it back on at the Chassis View window (in Logical mode), so that accidental data loops do not occur.
Index A Active link status 7-4 Active Users 1-5, 3-3 Add Poll Address window 7-4 Admin 2-9, 2-10 Admin/Link 2-9 Ageing Time 4-5 setting 4-5 alarm limit timer interval 5-6 alarm limits 2-18 Alignment Errors 5-5 Alignment errors 3-4 Allow Port to be Disabled on Alarm 5-7 B Board Menus 2-7 Board Name 1-5 board name 2-17 Board Number 1-5 Boot Prom, revision 2-4 Broadcasts 3-3, 5-5, 5-7 buffer space 2-22 Bytes 3-3 color-coded port display 2-2 command buttons 1-6 Configuring Alarms 5-6 Connection Status 2-3 CR
Index I I/F Summary window 2-19 Interface Detail window 2-21 testing or disabling an interface 2-24 Interface Group window 2-21 Interface Statistics window 2-21 IP address 1-5, 2-3 IRM2 1-1 L Link 2-9, 2-10 Link State Traps 6-1 LNK (Linked) 2-10 Load 2-20 Location 1-5 lockStatusChanged 6-3 Logical Status 2-19 M MAC address 1-5, 2-4 menu structure 2-4 MIM type 2-13 mouse usage 1-3 Multicast (Non-Unicast) 2-22 N N/A (not available) 2-10 newSourceAddress 6-3 NLK (Not Linked) 2-10 Non-Unicast (Multicast) 2-
Index Soft Errors 3-4 Source Address Traps 6-1 Source Addresses window 4-5 accessing 4-4 sourceAddressTimeout 6-3 Statistics window board level 3-3 port level 3-3 repeater level 3-2 Summary Statistics window 3-7 board level 3-8 configuring 3-9 device level 3-8 T Technical support 1-7 Test Time of Day window 7-9 threshold value 5-7 time interval 5-6 Timer Statistics window 3-5 to change the status view of your ports 2-8 Transmit errors 3-4 Transmit Queue Size 2-23 trap table 6-1 traps 6-1 U Unicast 2-22 U
Index Index-4
