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Cabletron Systems FDMMIM Installation And User Manual
Summary of FDMMIM
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The complete networking solution fdmmim, fdmmim-04, fdmmim-24, and fdmmim-30 fddi concentrator ethernet to fddi bridge modules installation and user’s guide cabletron systems, p. O. Box 5005, rochester, nh 03867-0505.
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Notice i notice cabletron systems reserves the right to make changes in specifications, hardware, firmware, software, 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. ...
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Fcc notice ii fcc notice this device complies with part 15 of the fcc rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation....
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Notice iii safety information class 1 laser transceivers class 1 laser product class 1 laser products the fdmmim-30 connectors use class 1 laser transceivers. Read the following safety information before installing or operating the fdmmim-30. The class 1 laser transceivers use an optical feedback lo...
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Fcc notice iv safety information class 1 laser transceivers laser radiation and connectors when the connector is in place, all laser radiation remains within the fiber. The maximum amount of radiant power exiting the fiber (under normal conditions) is -12.6dbm or 55x10 -6 watts. Removing the optical...
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V contents contents chapter 1 introduction 1.1 using this manual ........................................................................1-2 1.2 getting help ..................................................................................1-4 1.3 the fdmmim fddi concentrator and ethernet to fddi br...
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Vi contents 4.4 screen organization ......................................................................4-4 4.4.1 screen header and message bar section ........................... 4-4 4.4.2 data sections and command menus .................................4-7 4.5 setting fdmmim operating parameters...
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Vii contents chapter 7 spanning tree 7.1 the bridge protocol screen ..........................................................7-1 7.1.1 bridge protocol screen data ...............................................7-2 7.1.2 bridge protocol screen commands .................................... 7-5 7.2 th...
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Viii contents appendix a fdmmim/lm messages information messages .........................................................................A-1 warning messages ..............................................................................A-1 error messages ...............................................
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1-1 introduction chapter 1 introduction the fdmmim, fdmmim-04, fdmmim-24, and fdmmim-30 combine the functions of an fddi concentrator with those of an ethernet/802.3 to fddi bridge. When distinguishing one module from the other, keep the following in mind: • all modules contain fddi a and b ports wh...
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1-2 introduction 1.1 using this manual you should have a general working knowledge of fddi networks and the ansi x3t9.5 standard prior to installing the fdmmim. (if you need a review of fddi, see appendix c.) the following summarizes the organization of this manual. Chapter 1, introduction, describe...
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1-3 introduction chapter 6, setting up the fdmmim, explains the following local management screens: setup controls fdmmim parameters. Community set permissions for remote access to names table the fdmmim, and create local management passwords. Tftp code set conditions for updating the download setup...
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1-4 introduction 1.2 getting help if you have any questions, comments or suggestions related to the fdmmim or this manual, you can contact cabletron systems technical support by any of the following methods: by phone: monday through friday between 8 a.M. And 8 p.M. Eastern standard time at (603) 332...
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1-5 introduction figure 1-1. Fdmmim modules local management for the fdmmim provides module and network information such as frame counts, error breakdowns, and bridge information. You can view lm on a digital equipment corporation vt220 or vt320 terminal, or a pc with terminal emulation software. Si...
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1-6 introduction the fdmmim can accept an optical bypass switch (figure 1-2). If you use this optional device, the fiber optic connections pass through the switch, automatically switching to a bypass mode. This feature maintains ring continuity, if the bridge module loses power. The mmac ethernet “a...
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1-7 introduction fdmmim fddi ring connections a b irm3 fdcmim mmac ethernet bus mmac fddi bus ethernet network figure 1-3. Bridging fddi to ethernet with the fdmmim 1.4 fdmmim features lanview lanview is a visual diagnostic and status monitoring system developed by cabletron systems. Leds on the fdm...
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1-8 introduction management an rs-232 console port gives you direct access to fdmmim local management. Here you can check bridge statistics, and control the bridge and fddi port configuration. The fdmmim also supports snmp network management tools such as cabletron systems’ spectrum products. Shared...
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2-1 installing the fdmmim chapter 2 installing the fdmmim the fdmmim is a media interface module (mim) that fits into a cabletron systems mmac network hub. You can install the fdmmim in any mmac slot except for slot 1 (the right-most slot). This chapter describes: • configuring your mmac hub • setti...
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2-2 installing the fdmmim 2.1.1 adding mims to an mmac the following examples provide only a sampling of possible mim and mmac combinations. Refer to appendix b for a list of fdmmim and fdcmim power requirements. In addition, when configuring an mmac, remember the following: • mmac-3fnb board slot n...
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2-3 installing the fdmmim figure 2-2 represents an mmac-5fnb equipped with dual power supplies, two fdcmim-08s and an fdmmim-04. The mmac has enough power to support the configuration. However, the combined load of the modules exceeds the output of a single power supply. This means that the hub does...
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2-4 installing the fdmmim 2.1.2 mmac configurations the fdmmim can bridge fddi and ethernet. Since the ethernet interface to the fdmmim is through an mmac ethernet bus, the bridging function requires that you have both ethernet and fddi modules in the same mmac. To help you configure your mmac, cons...
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2-5 installing the fdmmim fail power ok sn mmac - 5psm irm3 sn ethernet reset pwr mgmt cln c o n s o l e off on fddi fdcmim-04 sn lnk pst lnk pst lnk pst lnk pst 1 2 3 4 pwr fnb r x t x m o d e m on off bok rcv pok fail power ok sn mmac - 5psm off on 10base-t ethernet 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x...
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2-6 installing the fdmmim to demonstrate this mim interaction, assume that we have an mmac-5fnb configuration as follows: slot 1 - emme slot 2 - tprmim-36 slot 3 - fdmmim slot 4 - fdcmim-04 after turning on the mmac, the tprmim checks the mim in slot 3. When it determines that slot 3 does not hold a...
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2-7 installing the fdmmim jumper jp6 (figure 2-5) is a laser jumper. This jumper has no affect on fdmmim operation; it simply indicates to non-fddi manage- ment modules that it is an fddi single mode or multimode board. This jumper is set at the factory; you need not change its position. 2.2.2 setti...
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2-8 installing the fdmmim figure 2-6 shows the general location of the switch bank and the configuration switch options. Note: the fdmmim is shipped with all switches in the on position. On 1 2 3 4 5 6 7 8 1. On - forward broadcast packets off - filter broadcast packets 2. Not used 3. Not used 4. On...
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2-9 installing the fdmmim 2.2.3 installing into the mmac after configuring your mims, activating the fdmmim battery, and setting any fdmmim configuration switches, proceed as follows: note: we recommend powering-down your mmac before removing fdmmims, even though these modules have “hot swap” capabi...
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2-10 installing the fdmmim fail power ok sn mmac - 5psm off on fail power ok sn mmac - 5psm off on irm3 sn ethernet reset pwr mgmt cln c o n s o l e r x t x m o d e m on off bok rcv pok fomim-22 sn tx rx tx rx tx rx tx rx tx rx tx rx ethernet 4 pwr link fddi fdmmim-04 sn reset y p s s a b b f d d i ...
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2-11 installing the fdmmim primary in red key secondary out f d d i a secondary in blue key primary out f d d i b figure 2-8. Fdmmim duplex fiber optic receptacles the optical bypass switch (also known as a station bypass switch or a bypass relay) is an x3t9.5 compliant device that automatically iso...
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2-12 installing the fdmmim bypass fddi a fddi b fdmmim optical bypass primary ring secondary ring primary ring secondary ring figure 2-9. Fdmmim dual ring connections through a bypass switch when installing an optical bypass switch, begin with steps 1 and 2 below to attach the duplex main ring cabli...
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2-13 installing the fdmmim enable-a 3 2 6 5 4 1 enable-b bypass present ground ground ground figure 2-10. Bypass switch cable configuration 2.4 fdmmim-04 and fdmmim-24 master port cable connections the fdmmim-04 and fdmmim-24 have four m type concentrator ports. The fdmmim-04 ports are fiber connect...
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2-14 installing the fdmmim figure 2-11. Tp-pmd port pinouts 2.6 master ports and lanview each master port has two leds — pst and lnk. These leds show the status of that m type port. Pst (port status) this multi-state led can indicate the following: green the station attached to the port is connected...
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2-15 installing the fdmmim amber management has disabled this port. Red or flashing red the port has failed. Led off the port has no valid connector attached. Lnk (media link ok) when on, this green led indicates that a connection exists between the m type port and the node at the other end of the p...
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2-16 installing the fdmmim stby (standby) when on, this amber led indicates that the fdmmim is in standby mode. During power-up with sta disabled, the fdmmim is in standby mode for approximately 15 seconds, learning addresses, before going on line. During power-up with sta enabled, the bridge progre...
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2-17 installing the fdmmim 2.7.2 fddi leds figure 2-12 shows the six fddi leds on the front of the fdmmim. Stby syok xmt rcv cln pok pwr twr xmt rcv wrp rop enet fddi figure 2-12. Lanview fddi leds pwr (power) when on, this green led indicates that the fdmmim is receiving power from the mmac. Twr (t...
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2-18 installing the fdmmim wrp (wrap) this red led illuminates when the fdmmim detects an fddi ring wrap, meaning that there is a break in the ring, and the system has combined the primary and secondary rings into one ring. Rop (ring op) when on, this green led indicates that the token claim process...
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3-1 connecting to local management chapter 3 connecting to local management out-of-band management for the fdmmim is called fdmmim local management. You can access this management tool by connecting a terminal to the fdmmim. This chapter explains: • connecting to local management with a terminal • l...
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3-2 connecting to local management if you have a vt220 or vt320 series terminal, press f3 (set-up) to access the setup directory and set the options as follows: display set-up menu columns 80 columns controls interpret controls auto wrap no auto wrap text cursor no cursor general set-up menu mode vt...
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3-3 connecting to local management console port pin 1 transmit data (xmt) from console port pin 2 data set ready (dsr) to console port pin 3 not used pin 4 receive data (rcv) to console port pin 5 signal ground (gnd) pin 6 data terminal ready (dtr) from console port pin 7 not used pin 8 not used c o...
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3-4 connecting to local management note if you turn on the fdmmim while you are viewing local management, you first see the fdmmim power-up diagnostics, and then the password screen appears. If the fdmmim is already on, the password screen appears. 4. Enter your password. (the default password is th...
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3-5 connecting to local management fddi port a/b tests when the fdmmim transmits or receives frames via the primary or secondary fddi network ring, the frames must pass through the fdmmim a or b ports. The fddi a and b tests check the hardware components that control communications through the fdmmi...
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3-6 connecting to local management 3.3 manually resetting the fdmmim in the event your device is not operating properly, or you want to clear and reload ram with the code in flash memory, you may want to reset the fdmmim. To accomplish this: 1) take a paper clip (the 2 inch type works best). 2) bend...
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4-1 getting started with fdmmim/lm chapter 4 getting started with fdmmim local management this chapter explains: • format conventions used in this manual • the organization of local management screens • screen header fields, and what special header fields exist in certain local management screens • ...
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4-2 getting started with fdmmim/lm 4.2 using the management keyboard use the keyboard arrows (up, down, left, and right) to highlight a command or field (you can only highlight changeable fields). Local management rejects an incorrect entry, and displays a message that explains the problem. (refer t...
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4-3 getting started with fdmmim/lm figure 4-1. Fdmmim local management structure 4.4 screen organization setup setfdmmim operating parameters; enable or disable bridge; reset databases. Bridge protocol set spanning tree algorithm bridge parameters. Filtering database display/create/delete acquired a...
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4-4 getting started with fdmmim/lm note: other chapters that refer to specific screens do not repeat this information. Appearing in all screens date and time displays the fdmmim date and time. To change the date and time, go to the setup screen. Title describes the screen purpose, such as setup, or ...
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4-5 getting started with fdmmim/lm detect the claim (beacon) process of the fddi ring protocol has exceeded 1 second. There may be a problem. Non-op-dup the ring failed to complete the claim (beacon) process. This usually indicates a duplicate fddi address. Ring-op-dup the ring is operational, but a...
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4-6 getting started with fdmmim/lm appearing in the system information screen only fw version refers to the version of local management software currently installed on the fdmmim. The local management software is stored in fdmmim flash memory. Flash memory allows you to download new software using t...
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4-7 getting started with fdmmim/lm 4.5 setting fdmmim operating parameters tables 4-1 and 4-2 list, in alphabetical order, each changeable fdmmim parameter. In addition, the tables also provide the default setting, allowed range, and name of the local management screen where you can edit the paramet...
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4-8 getting started with fdmmim/lm fddi port - 80 (0 to ff) parameters screen refresh time 2 seconds (1 to 999 sec.) setup type of sta protocol 802.1 (802.1, dec, none) setup table 4-1. Fdmmim defaults parameter default (range) edit screen community names basic read - public community read only - pu...
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Using the information screens 5-1 chapter 5 using the information screens this chapter concentrates on the data sections and command menus of the local management information screens. These screens provide status information on fdmmim functions. This chapter includes data and command information on ...
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Using the information screens 5-2 04/02/94 08:43:18 system information fw version: 3.00.00 ethernet address: 00-00-1d-06-f9-c2 bridge status: on-line fddi address: 00-00-b8-60-9f-c3 uptime: 10 days 12 hours 23 minutes ip address: 134.141.30.14 message log: 22 network traffic filter database frames r...
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Using the information screens 5-3 frames transmitted displays the total number of frames transmitted by the fdmmim (for example, bridge protocol data unit (bpdu) frames, fddi smt frames, etc.). Frame errors is the total number of errors detected by the fdmmim at both ports. The individual errors tha...
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Using the information screens 5-4 wrap-a phy-a is wrapped via the mac (from phy-a/primary in to mac to secondary out/phy-a). Phy-b is disconnected. Mac wrap-a fddi-a fddi-b primary out secondary in primary in secondary out wrap-b phy-b is wrapped via the mac (from phy-b/secondary in to mac to primar...
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Using the information screens 5-5 wrap-ab phy-b is connected to the mac (from phy-b/ secondary in to mac to primary out/phy-b). Phy-a is wrapped primary in to secondary out), isolating phy-a from the mac. Mac wrap-ab fddi-a fddi-b primary out secondary in primary in secondary out tneg (time negotiat...
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Using the information screens 5-6 dynamic ageing time is the length of time that the acquired database retains an address before purging it. You can set the dynamic ageing time in the filter database screen to any value between 10 and 1 million seconds. Dynamics are those addresses that the bridge l...
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Using the information screens 5-7 ethernet port and fddi port display the port state of the respective bridge ports. The possible port states include: disabled management has disabled this port. No traffic can be received or forwarded while the port is disabled. Learning the bridge is learning netwo...
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Using the information screens 5-8 5.1.5 system information screen commands the system information screen is the starting point for any activity in local management. The system information screen contains the following commands: message log opens the message log screen to display all messages, warnin...
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Using the information screens 5-9 5.2 the network traffic screen the network traffic screen provides a detailed breakdown of the information provided in the network traffic section of the system information screen. Below the header information (described in chapter 4), the network traffic screen dat...
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Using the information screens 5-10 5.2.1 network traffic screen data the network traffic screen displays the following: received shows the total number of frames received by the fdmmim at each bridge port. The totals include both data and bridge protocol data unit (bpdu) frames. Filtered shows the t...
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Using the information screens 5-11 rx overflow shows the number of frames lost due to a lack of buffer memory space. An overflow condition is usually due to a high traffic level and collision rate on the ethernet network. The bridge’s buffer memory space fills while the bridge is waiting to make val...
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Using the information screens 5-12 tx overflow shows the number of frames lost at transmission, due to a lack of transmit queue memory space. An overflow condition is usually due to a high traffic level and collision rate at the ethernet interface, or a problem on the fddi ring. Tx ring down shows t...
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Using the information screens 5-13 5.3 the ring map screen the fddi ring map screen shows fddi formatted addresses of ring stations in a graphic illustration of the fddi ring topology, and provides access to a node information screen for each device. To display the ring map: • highlight ring map in ...
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Using the information screens 5-14 5.3.1 ring map screen data the fddi ring map shows the address and sequence of each fddi device attached to the ring. When first displayed, the station at the upper left corner of the ring is this station (fdmmim). The screen displays node class, node address, and ...
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Using the information screens 5-15 5.3.2 ring map screen commands return closes the ring map screen, and returns you to the system information screen. Change address mode lets you switch between canonical or mac format addresses. The address mode toggles each time you execute this command. Scroll do...
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Using the information screens 5-16 5.4 the node information screen the node information screen provides information for each selected node on the fddi ring map. Note: the node information screen reflects node status at the time the node was selected. The node information screen does not change dynam...
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Using the information screens 5-17 node class shows the class (nas, das, dac, sas, or sac) of the selected node. Mac count shows the number of macs (media access controllers) physically housed in the selected node. Non-master count shows the number of a and b ports on the selected node. Master count...
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Using the information screens 5-18 5.5 the message log screen the fdmmim displays messages, warnings, and errors as they occur but only for a short period of time. (you can adjust the message duration in the setup screen.) lm records messages and warnings not relating to station management, and all ...
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Using the information screens 5-19 the message log can hold a maximum of 10 messages. After reaching the maximum limit, lm stops adding any new messages to the log until you delete the current log file. To open the message log screen: • highlight message log in the system information screen, and pre...
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Using the information screens 5-20 5.5.1 message log data the message log screen displays the following information: total messages is a counter that indicates the number of entries currently held in the log. The log can hold up to 10 messages. The message log screen displays up to 10 log entries. I...
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6-1 setting up the fdmmim chapter 6 setting up the fdmmim this chapter explains the screens that let you customize fdmmim default settings: • setup • community names table • tftp code download setup in addition to explaining the tftp code download setup screen, this chapter provides basic downloadin...
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6-2 setting up the fdmmim to open the setup screen: • highlight setup in the system information screen, and press return. 04/02/94 08:44:42 setup ethernet address: 00-00-1d-06-f9-c2 last reset: 06/26/93 18:34:39 fddi address: 00-00-b8-60-9f-c3 restarts: 19 bridge name: cabletron enet-fddi bridge loc...
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6-3 setting up the fdmmim restarts is a counter that tracks the number of times that the fdmmim has been reset since the last time fdmmim was powered- up. If this number grows steadily, it may indicate a hardware problem with the fdmmim or the mmac. Bridge name is a text field that shows an assigned...
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6-4 setting up the fdmmim set time/date lets you enter the current time and date. Highlight the field and enter the date and time using the following formats: date - mm/dd/yy time - hh:mm:ss (the default settings are indeterminate. The internal calendar and clock begin running as soon as you activat...
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6-5 setting up the fdmmim fdmmim slot location is a toggle choice that lets you define, to local management, the mmac slot location of the fdmmim. (default = slot 2. Slot 1, the farthest right mmac slot, houses only half-width management modules. Available toggle choices depend on the chassis type f...
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6-6 setting up the fdmmim 6.1.2 setup screen commands the setup screen contains the following commands: restart bridge simulates turning the bridge off and on. The fdmmim: • deletes the acquired database • executes all of its self-tests • increments the restarts counter. After you select restart bri...
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6-7 setting up the fdmmim return closes the setup screen and returns you to the system information screen. If you choose return without saving changes, you lose any edits you made to setup screen fields. Save saves the setup information currently displayed. 6.2 the community names table screen the c...
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6-8 setting up the fdmmim 6.2.1 community names table data the fdmmim has four remote access levels: read only you may view, but not alter, any basic read agent accessible data. At this time, basic read and read only have identical access privileges. In future implementations of local management, vi...
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6-9 setting up the fdmmim 6.2.2 community names screen commands return closes the community names table screen, and returns you to the setup screen. Save saves the information currently displayed on the community names screen. 6.3 tftp code download setup screen the fdmmim/lm software resides in a f...
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6-10 setting up the fdmmim 6.3.1 tftp code download setup screen data the tftp code download setup screen has four fields: force download is a yes/no toggle selection. When set to yes, the downloaded code is loaded into the fdmmim’s ram, replacing the current fdmmim/lm software. The download occurs ...
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6-11 setting up the fdmmim 6.4 image file download with unix downloading an fdmmim image file with a unix workstation requires 1) setting up a management station, and 2) forcing the download. You can use either fdmmim/lm or the bootp switch to force the download. Note: you can also download with oth...
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6-13 setting up the fdmmim 6.5 forcing an image file download the following two sections provide instructions / guidelines on how to force the download of an image file after setting up your management station. Note: you can also force a download with other unix or dos remote management packages. Re...
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6-14 setting up the fdmmim 6.5.2 forcing a download with bootp in order to force a download using the bootp switch, you must remove the fdmmim, and change the switch position. To force a download using the bootp switch: note:we recommend powering-down your mmac before removing fdmmims, even though t...
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6-15 setting up the fdmmim note: the fdmmim boot prom must recognize the switch position change to use bootp. This means, you must power-up the fdmmim at least one time (i.E., since taking it out of the shipping package), with its battery enabled, for the device to load initial switch positions into...
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7-1 spanning tree chapter 7 spanning tree the spanning tree algorithm (sta) is the method by which multiple bridges in a network coordinate their activities. This chapter explains how you can control fdmmim participation in the network sta operation. The two local management screens that affect span...
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Spanning tree 7-2 04/02/94 08:44:34 bridge protocol ethernet address: 00-00-1d-06-f9-d6 ring state: ring-op fddi address: 00-00-b8-60-9f-eb status: on-line uptime: 10 days 22 hours 01 minutes bridge id: 80-00-00-b8-60-9f-eb time since topology change: 3450 topology change count: 2 topology change: 0...
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7-3 spanning tree root cost indicates the cost (value), of the data path from the fdmmim to the root bridge. The root cost value does not represent a particular type of unit. It is simply a value that is compared to the root cost value of other bridges in the network. The root cost is used by sta wh...
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Spanning tree 7-4 topology change indicates the value of the topology change flag. If this bridge is the root bridge, the value of the topology change flag is transmitted via configuration bpdus to the other bridges in the network. This field can contain the following: one (1) a change is occurring....
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7-5 spanning tree 7.1.2 bridge protocol screen commands return closes the bridge protocol screen, and returns you to the system information screen. Save saves thesta operating parameters currently displayed on the bridge protocol screen. Port parameters opens the port parameters screen. 7.2 the brid...
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Spanning tree 7-6 7.2.1 bridge port parameters screen data port-specific spanning tree information includes: port priority shows the port priority portion of the port identifier. The port priority is one of the values used by sta to choose a root port for the bridge. A lower number indicates a highe...
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7-7 spanning tree path cost displays the portion of the total path cost associated with this port. In a parallel bridge network, the spanning tree algorithm selects the bridge with the lowest path cost as the root bridge. Changing a port’s path cost can affect the selection of the root bridge. You c...
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8-1 the filtering databases chapter 8 the filtering databases fdmmim/lm lets you examine entries in the acquired, permanent, and special databases. This chapter explains how the fdmmim bridge uses these databases and how you can view their contents. Local management gives you access to the filtering...
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8-2 the filtering databases • the bridge checks the destination address of the frame to determine how to treat it. If the bridge finds the destination address in its acquired database, it knows the frame’s destination network (port). At this point the bridge decides whether to filter or forward the ...
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8-3 the filtering databases 04/02/94 05:14:34 filter database ethernet address: 00-00-1d-06-f9-d6 ring state: ring-op fddi address: 00-00-b8-60-9f-eb status: on-line uptime: 10 days 22 hours 01 minutes acquired database permanent database maximum entries: 8191 maximum entries: 2047 current entries: ...
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8-4 the filtering databases addresses that the bridge loads at start-up. The count never drops below the 17 permanent database entries. Dynamic ageing time is the length of time, in seconds, that the acquired database retains a dynamic entry. To set the dynamic ageing time, highlight the dynamic age...
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8-5 the filtering databases 8.3 display filter entries screen the display filter entries screen lets you examine the contents of the acquired and permanent databases. To open the display filter entries screen: • highlight the display entries command in the filter database screen, and press return. 0...
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8-6 the filtering databases 3. Select the type of entry to display by highlighting the type field and pressing return to toggle between dynamic and static. 4. Highlight the display entries command at the bottom of the screen, and press return. The screen lists up to the first ten addresses that matc...
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8-7 the filtering databases enet port defines the action the bridge takes on frames entering the ethernet port: relay forward frames with this destination address. Filter do not forward frames with this destination address. Fddi port defines the action the bridge takes on frames entering the fddi po...
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8-8 the filtering databases to open the create filter entry screen: • highlight the create entry command in the filter database screen, and press return. 04/02/94 05:14:34 create filter entry ethernet address: 00-00-1d-06-f9-d6 ring state: ring-op fddi address: 00-00-b8-60-9f-eb status: on-line upti...
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8-9 the filtering databases action on frame entering enet port defines the action the bridge takes on packets entering the ethernet port. Use the return key to toggle between forward and filter: relay forward traffic destined for this address. Filter filter traffic destined for this address. Action ...
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8-10 the filtering databases 04/02/94 05:14:34 delete filter entry ethernet address: 00-00-1d-06-f9-d6 ring state: ring-op fddi address: 00-00-b8-60-9f-eb status: on-line uptime: 10 days 22 hours 01 minutes acquired database permanent database maximum entries: 8191 maximum entries: 2047 current entr...
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8-11 the filtering databases 8.6 special database screen you can store up to ten filter entries in the special database. These filters, like those in the acquired database, determine if the bridge filters or forwards certain frames. However, the special database allows you to define one or more fiel...
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8-12 the filtering databases 8.6.1 special database screen data enable shows whether or not the associated entry is enabled (filtering frames). Highlight this field and use the return key to toggle between yes (apply the filter) and no (do not apply the filter). Enet defines the action the bridge ta...
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8-13 the filtering databases data field provides the bridge with 16 hex integers to compare to the first 16 hex integers of an incoming frame’s information field. Highlight this field and enter the desired 16 hex integers. An x (wildcard) in any integer position forces a match for that integer. Defa...
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9-1 controlling concentrator modules and ports chapter 9 controlling concentrator modules and ports the fdmmim, and adjacent fdcmims, make up a modular dual- attached fddi concentrator. This chapter explains how to use the fddi configuration screen to enable and disable the fdmmim concentrator and f...
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9-2 controlling concentrator modules and ports below the screen header information, the fddi configuration screen displays a representation of the fdmmim and any fdcmims located in higher numbered slots. The configuration screen shows only one fdmmim, even if more fdmmims reside in the hub. The fddi...
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9-3 controlling concentrator modules and ports fddi ring connection status, when on, indicates that the fdmmim is connected to the fddi ring. When off, the fdmmim is isolated from the ring. (fdcmims do not have a and b connectors.) to connect/disconnect the fdmmim from the fddi ring: 1. Highlight th...
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9-4 controlling concentrator modules and ports if you close the fddi configuration screen without using the execute command, you lose all changes. You only need to use execute once. You can move the cursor around the screen, turning ports and modules on and off, and then execute to make all your cha...
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Fdmmim/lm messages a-1 appendix a fdmmim/lm messages this appendix lists each warning and error message that can occur in fdmmim/lm, describes potential causes for each message, and suggests corrective actions where appropriate. Within each category, messages are listed alphabetically. Information m...
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Fdmmim/lm messages a-2 a-s connection accepted cause: connecting an fddi a port to an s port is an undesirable connection. The fdmmim supports a-s connections. Action: if possible, reconnect the fdmmim’s a port cable so that it connects to a b port. A-s connection rejected cause: connecting an fddi ...
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Fdmmim/lm messages a-3 b-s connection rejected cause: connecting an fddi b port to an s port is an undesirable connection. The fdmmim rejects b-s connection when directed to do so by your connection policy. Action: if possible, reconnect the fdmmim’s b port cable so that it connects to an a port. Ag...
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Fdmmim/lm messages a-4 send_config_bpdu ( ) port (1, 2) took too long cause: the port could not transmit a configuration bridge protocol data unit on schedule. Action: if the message states that the problem is on port 1, the cause could be that the ring is down. If this is an isolated incident, no a...
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Fdmmim/lm messages a-5 illegal date entered cause: the date you entered is not a valid date or you used the wrong format. Action: retype the date. Use all numerical values in the format: mm/dd/yy. Illegal bpdu type cause: the fdmmim has received a bridge protocol data unit of an unknown type. Not al...
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Fdmmim/lm messages a-6 illegal password entered cause: you typed the wrong password. Action: retype the entry. Illegal time entered cause: the time you entered was not a valid time or you used the wrong format. Action: retype the time. Use 24-hour clock notation in the format: hh:mm:ss. Link error e...
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Fdmmim/lm messages a-7 no hardware filter cause: during the power-up diagnostics, the fdmmim was unable to find the components that comprise the bridge filter. The bridge is inoperative. It can receive configuration and management packets, but it cannot forward packets. Action: restart the bridge. I...
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Fdmmim/lm messages a-8 smt_mib_set (hex address) failed for this instance cause: internal error. Action: contact cabletron systems technical support. This entry must be greater than or equal to . . . Cause: you entered a number that is smaller than the numbers that this field can accept. Action: ret...
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Fdmmim/lm messages a-9 error messages fddi error messages indicate that fddi ring operations or fdmmim operations have been interrupted. These errors usually result in disconnecting one or both bridge ports from the network and require that someone fix the problem condition before the fdmmim can rec...
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Fdmmim/lm messages a-10 bsi mac_device_abort_req_status cause: internal error. Action: contact cabletron systems technical support. Bsi mac_reset_req_status cause: internal error. Action: contact cabletron systems technical support. Bsi no_req_status cause: internal error. Action: contact cabletron ...
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Fdmmim/lm messages a-11 bsi underrun_req_status cause: internal error. Action: contact cabletron systems technical support. Comparison error cause: internal error. Action: contact cabletron systems technical support. Downloading to daughter board unsuccessful cause: the m ports could not be initiali...
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Fdmmim/lm messages a-12 fddi port b failed self test cause: the fdmmim b port has an internal circuit failure that prevents it from connecting to the ring. Action: contact cabletron systems technical support. Fddi test 1 failed self test cause: the fdmmim has an internal circuit failure that prevent...
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Fdmmim/lm messages a-13 fnb failed self test cause: the fdmmim has an internal circuit failure that prevents it from connecting to the mmac buses. Action: contact cabletron systems technical support. Hardware filter ‘display counter’ timeout cause: a request to the bridge’s filter database hardware ...
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Fdmmim/lm messages a-14 ilb_ls_error cause: internal error. Action: contact cabletron systems technical support. Interrupt error cause: internal error. Action: contact cabletron systems technical support. Invalid fddi receive descriptor cause: packet buffering error. Action: no action required. The ...
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Fdmmim/lm messages a-15 on call to ret idud( ) in recv_fddi_pkt( ) cause: internal error. Action: contact cabletron systems technical support. Read_write error cause: internal error. Action: contact cabletron systems technical support. Received post/get/set cmd while fnb protocol locked cause: the c...
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Fdmmim/lm messages a-16 unexpected interrupt, irm backplane cause: internal error. Action: contact cabletron systems technical support. Unexpected interrupt, spurious cause: internal error. Action: contact cabletron systems technical support. Unknown type cause: internal error. Action: contact cable...
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Specifications b-1 appendix b specifications operating specifications this section lists the operating specifications for all of the fdmmims. Cabletron systems reserves the right to change these specifications at any time, without notice. Fiber optic interface depending on the fdmmim, interfaces hav...
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Specifications b-2 unshielded twisted pair transmitter amplitude: 1.080 vpk maximum 0.920 vpk minimum rise time: 2 nsec minimum 4 nsec maximum fall time: 2 nsec minimum 4 nsec maximum rise/fall variation: 0.5 nsec maximum overshoot: 5% maximum droop(14 symbols): 3% maximum unshielded twisted pair re...
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Specifications b-3 cable types the fddi multimode fiber physical layer medium dependent (mmf-pmd), twisted pair physical layer medium dependent (tp-pmd), and single mode fiber physical medium dependent (smf-pmd) standards define fddi cable requirements as follows: multimode fiber (as specified in x3...
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Specifications b-4 cable length between adjacent nodes: 100 m (328.1 feet) single mode cable length between adjacent nodes: 40 km (24 miles) maximum 25 km (15 miles) typical fddi ring connections you can attach the fdmmim to the ring as a dual attached station (das). The two duplex receptacles (fddi...
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Specifications b-5 serial numbers with number 940. In other words, a serial number beginning with 0671 is the same as one starting with 9400671. Use the following power consumption numbers to help plan your chassis / mim configuration. Refer to chapter 2, installing the fdmmim, for information on ad...
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Specifications b-6 environmental storage temperature: -40 ° c minimum 85 ° c maximum operating temperature: 5 ° c minimum 40 ° c maximum operating humidity: 5% to 95% non-condensing optical bypass switch interface optical bypass devices attached to the fdmmim must meet the following requirements for...
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C-1 basic fddi networks appendix c basic fddi networks this appendix covers basic fiber distributed data interface (fddi) network operation and concepts that are critical to fddi network design and installation. Ansi standard x3t9.5 provides greater detail on fddi access methods and should be refere...
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C-2 basic fddi networks when a station has a frame waiting to transmit, the station captures the token at the next opportunity, transmits the data frame, and then reissues the token. (a token holding timer (tht) controls the maximum length of time that any station may retain the token.) as the data ...
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C-3 basic fddi networks ethernet/802.3 network fddi network ethernet/802.3 network dual attached concentrator ethernet to fddi bridge ethernet to fddi bridge single attached concentrator single attached stations file server dual attached station figure c-1. Typical fddi physical installation reliabi...
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C-4 basic fddi networks concentrator 3 wrap concentrator 2 concentrator 1 concentrator 4 primary ring secondary ring a b a b a b a b figure c-2. Wrapping a broken ring ansi standard x3t9.5 the x3t9.5 standard is divided into five sections: station management (smt), media access control (mac), two ph...
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C-5 basic fddi networks figure c-3. Fddi structure and the osi network model the pmd standard establishes the physical characteristics of the network connection, including the fiber optic transmitter power levels, receiver sensitivity, the fiber optic cable type, the type of connectors, and acceptab...
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C-6 basic fddi networks the mac entity is the lower sublayer of the data link layer. The upper sublayer, logical link control (llc) serves as an interface between the osi model and the fddi network. The mac element, under control of station management, performs many of the tasks associated with fram...
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C-7 basic fddi networks figure c-5. Smt management organization smt frame services generates and interprets special fddi frames that are used to control and monitor the network. Ring management (rmt) monitors status information from the mac and configuration management and controls several functions...
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C-8 basic fddi networks connection management (cmt) controls physical layer insertion and removal of stations. Cmt has three main components: • entity coordination management (ecm) controls bypass switches and coordinates trace (recovery) functions. • configuration management (cfm) controls how the ...
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C-9 basic fddi networks port a port a port a port b port b port b port m port m port m port m primary connection backup connection 3 2 1 figure c-6. Dual homing topology concentrator 3 in figure c-6 has redundant connections to the main ring through either concentrator 1 or 2. The fddi connection ru...
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C-10 basic fddi networks phy pmd single attached concentrator dual attached concentrator phy-b pmd-b phy-a pmd-a pmd-3 primary in secondary out primary out secondary in phy-3 pmd-2 phy-2 pmd-1 phy-1 pmd-3 phy-3 pmd-2 phy-2 pmd-1 phy-1 phy pmd single attached station dual attached station phy-b pmd-b...
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C-11 basic fddi networks type b fddi receptacles single attachment type s in out dual attachment type a type s secondary out primary in type a primary out secondary in type b type m type m fddi connectors in out figure c-8. Duplex fiber optic receptacles and connectors optical bypass switches, conce...
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C-12 basic fddi networks an optical bypass switch is a device that can be inserted between a station and the fddi ring connections that lets you remove the station from the ring without disturbing ring continuity. They are usually electrically actuated and provide passive optical switching of both t...
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C-13 basic fddi networks bridging devices for fddi connect multiple fddi networks and link an fddi ring to a network that uses a different mac layer protocol (token ring or ethernet). A bridge does not expand an existing fddi ring, it connects rings. Bridges used to link two different mac layer prot...
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C-14 basic fddi networks design considerations for fddi networks the main variables that are of interest to the fddi network designer are ring length, drive distance (distance between nodes), and the maximum number of stations. While there are many factors that determine the limits set for these des...
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C-15 basic fddi networks in some multimode applications, existing 50/125 µ m or 100/140 µ m fiber can be used over longer distances. However, the cable must conform to the fddi standard for bandwidth and attenuation to remain compliant with the fddi standard. Attenuation the maximum attenuation (att...
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C-16 basic fddi networks das 2 dac 2 sac sas sas sas sas sas 16 physical connections 2 2 2 1 + 1 2 2 2 2 figure c-11. Physical device connections.
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I-1 index index a access levels 6-8 alignment errors 5-11 b basic read 6-8 battery 2-6 back-up ram 1-8 jumper location 2-7 blocking 5-7, 7-6 bridge configuration switches 2-7 bridge forward delay 7-3 hello time 7-3 id 7-2 max age 7-3 name 4-7, 6-3 operation 8-1 priority 5-7, 7-4 protocol data unit 5...
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I-2 index disabled 4-6 display filter entries screen 8-5 downloading 6-9, 6-11 dual attached concentrator 5-14 station 5-14 duplex cable connections 2-11 dynamic ageing time 5-6, 8-4 dynamics 5-6 e emme 2-5 enable bridge command 6-6 eeprom, flash 1-8 error 5-18 errors, rx 5-10 ethernet address 4-5 i...
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I-3 index memory flash eeprom 1-8 local 1-8 ram 1-8 shared 1-8 message 5-18 bar 4-5 duration 6-3 log 4-7 log capacity 5-19 log screen 5-19 n nas 5-14 neighbor information frames 5-5 network name 6-3 network traffic screen 5-1, 5-9 nif 5-5 non-op 4-5 non-op-dup 4-6 none 5-6 null attached station 5-14...
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I-4 index single attached concentrator 5-14 station 5-14 slot location 6-5 smt 1-5 snmp 1-4 source address table size 1-8 spanning tree algorithm 5-6, 7-1 special database screen 8-11 sta 5-6 standby 2-16, 4-6 statics 5-6 station bypass switch 2-12 management 1-5 setup 6-11 status 4-6 stby 2-16 swit...