3Com SuperStack II - Manuals

C ONTENTS A BOUT T HIS G UIDE Conventions 15Year 2000 Compliance 16 1 F EATURES AND S PECIFICATIONS Features 17Back and Front Panels 18DIP Switches 20Hardware Interrupt Switch 20Reset Button 21Serial Device Requirements 21 2 U SING THE B RIDGE /R OUTER IN Y OUR N ETWORK Overview 23Using Ethernet LAN...

Serial LEDs 124WAN LEDs 125LAN LEDs 125 Error LED Meanings 126 Troubleshooting During the Load Phase 126Troubleshooting During the Test Phase 131Errors Indicated by the Serial LEDs 131Errors Indicated by the WAN LEDs 132 Performing Loopback Tests 133 Response to Local Loopback Assertion 133Performin...

RS-530 DTE Cable Pinouts 185 E P ROVISIONING Y OUR ISDN L INE Ordering U.S. and Canadian ISDN BRI Services 187 Switch Provisioning Tables 189 AT&T 5ESS Switch 189AT&T 5ESS Custom Switch 190DMS 100 and National ISDN 1 191Siemens EWSD Switch 192 SPIDs 192 NT1s and Power Supplies 193Ordering Ge...

A BOUT T HIS G UIDE This guide includes basic software configuration information for the the SuperStack ® II NETBuilder ® SI bridge/router: For more information about configuring the software, see Using Enterprise OS Software . This guide is intended for experienced system integrators and network ad...

16 A BOUT T HIS G UIDE Year 2000 Compliance For information on Year 2000 compliance and 3Com products, visit the 3Com Year 2000 Web page: http://www.3com.com/products/yr2000.html Table 2 Text Conventions Convention Description Screen displays This typeface represents information as it appears on the...

1 F EATURES AND S PECIFICATIONS This chapter provides an overview of the SuperStack II NETBuilder SI bridge/router and includes the following information: ■ Features ■ Back and Front Panels ■ DIP Switches ■ Hardware Interrupt Switch ■ Serial Device Requirements Features Table 3 lists features of the...

18 C HAPTER 1: F EATURES AND S PECIFICATIONS Back and Front Panels Figure 1 shows the back panel of the SuperStack II bridge/router. Figure 1 Back Panel Figure 2 shows the front panel of the model 4xx bridge/router and the model 5xx bridge/router. Serial ports Two (model 4xx) or four (model 5xx) Fle...

Back and Front Panels 19 Figure 2 Models 4xx and 5xx Chassis Front Panel SYSTEM SuperStack II NETBuilder Status Reset Run Aux Load Test A 100mb Link Fault Active L1 L1 L2 L2 LAN A Link Active Fault B Connect Fault Fwd Power/ Fault L1 and L2 Ethernet connectors SERIAL Flex-WAN connectors (A and B) WA...

20 C HAPTER 1: F EATURES AND S PECIFICATIONS DIP Switches DIP switches are located on the left side of the bridge/router (when facing the front panel) and are for 3Com use only. CAUTION: To avoid accidentally erasing your flash memory or reinitializing the EEPROM, make sure all switches are in the d...

Reset Button 21 Reset Button Pressing the Reset button resets the bridge/router. The reset button on the model 4xx bridge/router is on the front panel as shown in Figure 2. The reset button on the model 5xx bridge/router is on the left side of the bridge/router (when facing the front panel) as shown...

2 U SING THE B RIDGE /R OUTER IN Y OUR N ETWORK This chapter gives an overview of SuperStack II NETBuilder SI bridge/routers and describes how they fit in your network. It also describes the software features of the bridge/router. Overview SuperStack II bridge/routers maintain connectivity among sma...

Telco Services 25 Serial Ports The serial ports are multifunction Flex-WAN ports that provide connection to industry-standard V.35, RS-232, RS-449, RS-530, or X.21 Data Communications Equipment (DCE) or Data Terminal Equipment (DTE) serial devices. You can buy Flex-WAN cables separately from 3Com. S...

26 C HAPTER 2: U SING THE B RIDGE /R OUTER IN Y OUR N ETWORK Using PPP on Dial-Up and Leased Lines All dial-up and leased lines use PPP. If you want to use multiple lines or channels to connect to the same destination, you can use Multilink PPP. Multilink PPP is especially useful for ISDN, as descri...

Telco Services 27 defines a point-to-point interaction between DTEs and DCEs. In simpler terms, when it is time to transmit data, a terminal connects to a modem or packet switch, which then connects to packet switching exchanges (PSEs) and other DCEs to transmit the data to its final destination at ...

3 I NSTALLING THE H ARDWARE This chapter describes how to install your SuperStack II NETBuilder SI bridge/router. Required Equipment Table 6 lists the items you receive in the shipping carton and items you need to provide. WARNING: To eliminate cable noise emission in excess of FCC regulations, part...

30 C HAPTER 3: I NSTALLING THE H ARDWARE For more information on cables, see Appendix D. Environmental Requirements Table 7 provides the environmental requirements of the SuperStack II bridge/routers. Table 7 Environmental Requirements Parameter Minimum Requirement Maximum Requirement Temperature Op...

Mounting the Bridge/Router 31 Mounting the Bridge/Router You can mount your bridge/router on a tabletop, stack several with brackets, or mount the bridge/router in a rack. Mounting Kit The mounting kit contains the following hardware: Figure 4 Mounting Kit Contents Installing on a Tabletop If you pl...

32 C HAPTER 3: I NSTALLING THE H ARDWARE Stacking with Brackets See Figure 5 to securely stack several bridge/routers on a tabletop. CAUTION: Do not restrict air flow around the sides and back of the bridge/router. Figure 5 Stacking Bridge/Routers Bottom bracket acts as a support Attach brackets as ...

Mounting the Bridge/Router 33 Installing in a Rack To install the bridge/router in a rack, follow these steps: CAUTION: Do not restrict air flow around the sides and back of the bridge/router. 1 Secure the rack-mount brackets to each side of the chassis using two flathead screws per bracket. 2 Hold ...

34 C HAPTER 3: I NSTALLING THE H ARDWARE Cabling the Connectors The SuperStack II NETBuilder SI bridge/router has two Ethernet ports, either two or four serial ports depending on the model, and one of the following WAN ports: ISDN S/T (43x and 53x), ISDN U (44x and 54x), 56/64 Kbps CSU/DSU (45x and ...

Cabling the Connectors 35 Cabling the WAN Connector This section describes the WAN connector for each bridge/router model. Model 43x and 53x ISDN S/T Models 43x and 53x bridge/routers have an ISDN S/T connector. The ISDN S/T port uses an RJ-45 connector. In the U.S. and Canada, purchase an NT1 from ...

36 C HAPTER 3: I NSTALLING THE H ARDWARE The ISDN U port uses an RJ-45 connector. In the U.S. and Canada, you do not need a separate NT1 between the bridge/router and the ISDN outlet because the NT1 is built into the model 44x bridge/router. For more information on ISDN cables, see “ISDN S/T Cable” ...

Cabling the Connectors 37 Cabling the Serial Connectors The SuperStack II bridge/router has either two or four Flex-WAN serial connectors depending on the model. Order the appropriate Flex-WAN cable from 3Com for your serial device. See “Serial Connectors and Flex-WAN Cables” on page 174 for more in...

38 C HAPTER 3: I NSTALLING THE H ARDWARE Attaching a Redundant Power System You can attach your SuperStack II bridge/router to a SuperStack II Redundant Power System (RPS). For full power supply redundancy, attach one end of the RPS cable to the rear panel on the bridge/router and the other end to t...

Connecting a PC, Terminal, or Modem 39 Connecting a PC, Terminal, or Modem Connect a PC running a terminal emulation program, a terminal, or a modem to the console port on the SuperStack II bridge/router to configure the bridge/router software and review startup and system operation messages. To con...

4 I NSTALLING OR R EMOVING AN I NTERFACE M ODULE This chapter describes how to install or remove interface modules in SuperStack II NETBuilder SI bridge/routers. The following table lists each model number and the interface module it contains. You can change any model 4xx bridge/router to another mo...

Removing an Existing Module (Model 4xx) 43 Removing an Existing Module (Model 4xx) To remove an existing module from a model 4xx bridge/router, follow these steps: 1 Remove the screw from the standoff. 2 Remove the module. Rear panel Front panel Remove screw Front panel Lift module straight up off t...

44 C HAPTER 4: I NSTALLING OR R EMOVING AN I NTERFACE M ODULE 3 If you are not installing another module, change the jumper to the left-hand set of pins and reinstall the screw on the standoff. 4 Reinstall the cover and the cover screws. CAUTION: The DIP switches should all be in the down position. ...

Installing a New Module (Model 4xx) 45 Installing a New Module (Model 4xx) To install a new module in a model 4xx bridge/router, follow these steps: 1 Remove the screw from the standoff if necessary. 2 Move the jumper to the right-hand set of pins. Remove screw Front panel Front panel Move the jumpe...

Installing a New Module (Model 5xx) 49 Installing a New Module (Model 5xx) To install a new module in a model 5xx bridge/router, follow these steps: 1 Remove the screw from the standoff if necessary. Rear panel Front panel Remove screw

5 L OGGING O N AND P ERFORMING A DMINISTRATIVE T ASKS This chapter describes how to start up the system, log on, use the user interface, and perform basic administrative tasks that you must complete before configuring the ports and paths and bridging or routing protocols that you plan to run on your...

54 C HAPTER 5: L OGGING O N AND P ERFORMING A DMINISTRATIVE T ASKS Verifying Successful Startup The startup process takes a few minutes. When the startup process has successfully completed, the LEDs on the front panel should be on or off as described in Table 10. If the LEDs on your bridge/router ap...

Attaching a Console 55 Attaching a Console You must attach a console to the bridge/router for initial software configuration. For information about attaching a PC, terminal, or modem, see the hardware installation guide for the bridge/router. After you have configured the software, you can access th...

56 C HAPTER 5: L OGGING O N AND P ERFORMING A DMINISTRATIVE T ASKS Choosing the User Interface This section describes how to access the menu-driven and command-line user interfaces. Detailed information for both types of interfaces is provided so that you can choose the one that best suits your need...

Choosing the User Interface 57 To use the menu-driven interface, follow these steps: 1 Log on as root or as a user with Network Manager privilege (see “Adding User Accounts” on page 60 for more information about user accounts). 2 If you have not selected a particular service, enter: MEnu The Main me...

Changing the Root Password 59 Changing the Root Password The default root password is a null string, which is generated by pressing the Return key. You should specify a new password immediately after you log on for the first time. Changing the root password prevents unauthorized users from accessing...

60 C HAPTER 5: L OGGING O N AND P ERFORMING A DMINISTRATIVE T ASKS Changing the Default Console Port Baud Rate To attach a terminal with a baud rate other than 9600, follow these steps: 1 At the Network Manager prompt (Enterprise OS #), enter: SysconF The System Configuration menu is displayed. 2 Se...

Setting the Time and Date 61 To manage multiple users and see all user accounts, enter: UserManage Setting the Time and Date 3Com recommends setting the time and date. Use: SET -SYS DATE = <YYYY/MM/DD HH:MM[:ss]> Enter the time in 24-hour-clock format. For example, to set the date and time to ...

62 C HAPTER 5: L OGGING O N AND P ERFORMING A DMINISTRATIVE T ASKS Setting Up Security To allow system administrator-only access to files, use these commands and parameters: ■ RemoteManager This SYS Service parameter specifies the Internet addresses of devices that can connect to the system through ...

6 B ASIC C ONFIGURATION OF P ORTS AND P ATHS This chapter contains conceptual information about ports and paths and contains basic configuation procedures for each of the interfaces on your SuperStack II NETBuilder SI bridge/router. Paths, Ports, and Virtual Ports Ports and paths are the fundamental...

64 C HAPTER 6: B ASIC C ONFIGURATION OF P ORTS AND P ATHS A port is the logical interface used by the software to represent a connection to a network. By default, each path is assigned to one port. For example, all network traffic received on physical path 1 is treated by the software as arriving on...

65 Multiple Static Paths per Port If you assign multiple paths to a port, the port must be running PPP. To use both B channels together on a built-in ISDN connector, to reserve a path for disaster recovery, or to use another path for dial-on-demand, failover, or bandwidth-on-demand, you can assign b...

66 C HAPTER 6: B ASIC C ONFIGURATION OF P ORTS AND P ATHS Virtual Ports over Frame Relay and X.25 Frame Relay and X.25 are peer-to-peer protocols that connect two nodes on the network. Boundary Routing and bridging, Internet Protocol-Open Shortest Path First (IP-OSPF), DECnet IV, VINES, and Xerox Ne...

67 Table 13 lists each bridging and routing protocol and the technique you must use to deal with the lack of connectivity in partially meshed and nonmeshed Frame Relay and X.25 topologies. Virtual Ports over PPP PPP virtual ports differ from Frame Relay and X.25 virtual ports in the following ways: ...

68 C HAPTER 6: B ASIC C ONFIGURATION OF P ORTS AND P ATHS unbound from their default ports and waits in the dial pool for an incoming call. When a call is received, the dynamic path that answers is assigned to a virtual port, which is standing by with the appropriate configuration information for th...

Path and Port Numbering 69 Path and Port Numbering The following tables outline the default port and path numbering for the SuperStack II bridge/router. Although the WAN connector on the model 5xx bridge/router is in a different physical location than the WAN connector on the model 4xx bridge/router...

Configuring ISDN on the WAN Port (43x, 44x, 53x, and 54x) 71 If you have only one local telephone number, enter the same number for both channels. 2 If you are planning to use channel B2 as a separate line, and your telecommunications carrier provided only one telephone number for all channels, spec...

72 C HAPTER 6: B ASIC C ONFIGURATION OF P ORTS AND P ATHS 2 In the U.S. and Canada, set the SPIDs and directory numbers (DNs) (if assigned by the telephone company) for each channel using: SETDefault !3 -PATH SPIDdn1 “<string>” DNs may be required for some DMS 100 or NI1 switches. When specify...

Configuring ISDN on the WAN Port (43x, 44x, 53x, and 54x) 73 Permissive. The answering device must be capable of generating the 2.1 KHz tone needed to disable any echo cancellers on the line. Consult with the owner of the destination equipment to see whether it has this capability. To configure this...

Configuring Serial Ports with DCEs 75 3 Set the baud rate (56 or 64 kbps) for the DS0 channel using: SETDefault !<path> -PATH T1DSoChnlBaud = <FT156K|FT164K> 4 Set the path clock using: SETDefault !<path> clock = [Internal | External] 5 Re-enable the path using: SETDefault !<pat...

76 C HAPTER 6: B ASIC C ONFIGURATION OF P ORTS AND P ATHS before you connect it to the SuperStack II bridge/router. See the documentation that came with your TA for more information. To configure the serial port with a DCE, follow these steps: 1 The default baud rate for the serial port is 64 Kbps. ...

Where to Go From Here 77 Where to Go From Here If you have a leased line, see Chapter 8 to configure bridging, IP, and IPX routing. For dial-up, Frame Relay, or X.25 lines, see Chapter 7 to complete your port and path configuration.

7 A DVANCED C ONFIGURATION OF P ORTS AND P ATHS This chapter provides scenarios for configuring the WAN and Serial ports for dial-up with PPP, Frame Relay, or X.25. After completing basic configuration on the ports and paths as described in Chapter 6, complete the scenarios in this chapter appropria...

80 C HAPTER 7: A DVANCED C ONFIGURATION OF P ORTS AND P ATHS ISDN on the WAN Port (43x, 44x, 53x and 54x) This section describes three scenarios using the built-in ISDN port: ■ Scenario 1: Using Each B Channel Separately ■ Scenario 2: Using Both B Channels Together ■ Scenario 3: Connecting to Multip...

81 Scenario 1: Using Each B Channel Separately If you need to connect to two separate locations at 64 Kbps, use each B channel separately. Each B channel can connect to only one location, though both locations can be separate ports on the same bridge/router. Start here Done B1: 64 K B2: 64 K 1-510-5...

86 C HAPTER 7: A DVANCED C ONFIGURATION OF P ORTS AND P ATHS Configuring Dial-Up over PPP with Modems or TAs This section describes two dial-up scenarios: ■ Scenario 1: Single Destination per Port ■ Scenario 2: Multiple Destinations ISDN TAs If you are using both B channels together for a 128 Kbps c...

87 Scenario 2: Multiple Destinations If you need to connect to multiple destinations, use a dial pool that contains one or both serial paths. The following scenarios show how a model 45x bridge/router using a dial pool can connect to three different bridge/routers. You cannot accept phone calls from...

88 C HAPTER 7: A DVANCED C ONFIGURATION OF P ORTS AND P ATHS !4 (path) !3 (path) modem 28.8 K modem 19.2 K 1-619-555-2222 1-650-555-6969 1-609-555-6000 "Princeton" "Andover" NETBuilder/II ® 28.8 K 19.2 K "PaloAlto" NETBuilder Router CONNECT O F F I C E System WAN ISDN LAN Lin...

89 Configuring Bandwidth Management for PPP This section describes how to configure bandwidth management features for dial-up lines. Setting Normal Bandwidth The -PORT NORMalBandwidth parameter specifies the amount of bandwidth the port uses. The default normal bandwidth is usually 64 Kbps. Show the...

90 C HAPTER 7: A DVANCED C ONFIGURATION OF P ORTS AND P ATHS Enabling Dial-On-Demand Dial-on-demand automatically dials the destination bridge/router when network traffic is present and hangs up when the network is idle. Dial-on-demand also provides failover support. If the primary line goes down, t...

92 C HAPTER 7: A DVANCED C ONFIGURATION OF P ORTS AND P ATHS increase to 32 Kbps (50% of 64 Kbps). After the additional 64 Kbps line is up, total bandwidth available is 128 Kbps. To activate the next line, traffic would have to increase to 64 Kbps (50% of 128 Kbps). The same process happens in rever...

Configuring Frame Relay 93 Configuring Frame Relay This section describes three Frame Relay scenarios: ■ Scenario 1: Multiple Destinations, Nonmeshed ■ Scenario 2: Partially Meshed Topology ■ Scenario 3: Fully Meshed Topology To configure a second Frame Relay line for disaster recovery, see Using En...

94 C HAPTER 7: A DVANCED C ONFIGURATION OF P ORTS AND P ATHS Scenario 1: Multiple Destinations, Nonmeshed A nonmeshed topology consists of bridge/routers that are not connected directly to every other bridge/router, like in a Boundary Routing topology. To achieve connectivity between all bridge/rout...

Configuring Frame Relay 95 Scenario 2: Partially Meshed Topology A partially meshed topology consists of bridge/routers that are connected directly to some destinations but not others. Use virtual ports to pass traffic from one site to another over the same parent port. Instead of using virtual port...

96 C HAPTER 7: A DVANCED C ONFIGURATION OF P ORTS AND P ATHS Start here Configure Site C Create a virtual port for each destination using the DLCIs: ADD !V1 -PORT VirtualPort 3@90ADD !V2 -PORT VirtualPort 3@100 One serial port connects to multiple destinations in apartially meshed topology. ADD !<...

Configuring X.25 97 Scenario 3: Fully Meshed Topology A fully meshed topology consists of bridge/routers that are connected directly to every other bridge/router. Between each bridge/router, you must order a Frame Relay circuit from the service provider. No configuration is required for this scenari...

Where To Go From Here 99 Scenario 2: Fully Meshed Topology A fully meshed topology consists of bridge/routers that are connected directly to every other bridge/router. Obtain an X.25 address from the X.25 service provider for the serial port. Where To Go From Here See Chapter 8 to configure bridging...

102 C HAPTER 8: C ONFIGURING B RIDGING AND R OUTING To enable bridging, enter: SETDefault -BRidge CONTrol = Bridge To customize your bridge, see Using Enterprise OS Software . Managing theBridge/Router If you want to access the bridge/router remotely using Telnet or FTP, assign an IP address to port...

Configuring IP Routing 103 See “Configuring Static Routes” on page 103 to configure routes manually, and “Learning Routes with OSPF” on page 106 to learn routes dynamically. Assigning Addresses and Enabling IP Routing To assign addresses and enable IP routing, follow these steps: 1 Assign an IP addr...

104 C HAPTER 8: C ONFIGURING B RIDGING AND R OUTING To delete a static route, use: DELete -IP ROUte <IP address> {<gateway> | !<port>} The metric can be the number of routers a packet must travel through to reach its destination, or a number associated with the path cost, for examp...

Configuring IP Routing 105 example, on router 1, you can add a static route for the Los Angeles network by entering: ADD -IP ROUte 10.0.0.0 !3 1 This command achieves the same results as the command in which you entered the gateway address 11.0.0.1. Subnet Masks Figure 8 Adding a Route Statically in...

106 C HAPTER 8: C ONFIGURING B RIDGING AND R OUTING This command adds the address 130.10.112.0 with subnet mask 255.255.255.0 to the routing table. Override Option If a destination network is reachable with both a static route and a learned route, the router uses the static route unless you specify ...

Configuring IP Routing 107 OSPF over Dial-On-Demand Dial-Up Lines If you are going to be running OSPF over dial-on-demand dial-up lines, and you do not want the line to come up just for an OSPF packet, configure a demand interface circuit using: SETDefault !<port> -OSPF DemandInterface = Enabl...

108 C HAPTER 8: C ONFIGURING B RIDGING AND R OUTING Assigning Addresses Automatically from BOOTP Servers If the network administrator at a central site has configured the BOOTP server so that your SuperStack II bridge/router is a BOOTP client, then Internet addresses may have automatically been assi...

Configuring IPX Routing 109 Configuring IPX Routing This section includes procedures to enable IPX routing and to optimize IPX for dial-up lines. For information about fine-tuning your IPX configuration, including running IPXWAN on a PPP link between the bridge/router and a NetWare Multi-Protocol Ro...

110 C HAPTER 8: C ONFIGURING B RIDGING AND R OUTING The IPX router ignores any dynamic updates or backup routes on the network when a static route is configured for a specific network. Static routes are recommended only where the network topology remains constant. Define a static route using: ADD !&...

9 C USTOMIZING Y OUR S OFTWARE This chapter includes information and procedures to customize your software. This chapter contains the following sections: ■ Naming Paths and Ports ■ Using the 56/64 Kbps CSU/DSU Module Autobaud Feature ■ Working with Dial Number Lists ■ Using Statistics on the 56/64 K...

112 C HAPTER 9: C USTOMIZING Y OUR S OFTWARE When you define the name parameter, these error messages may be returned: Rejected name - Contains invalid character(s) Rejected name - Null string not allowed Rejected name - It is already in use Rejected name - Must start with alphabetic character Using...

Working with Dial Number Lists 113 The following message is displayed at the console: Commencing autobauding for Path 2 to determine 56 or 64 Kbps baudrate” Working with Dial Number Lists This section descibes how to configure and customize your dial number list for dial-up lines. Adding a Phone Num...

114 C HAPTER 9: C USTOMIZING Y OUR S OFTWARE ADD !V1 -PORT DialNoList “123-4567a” ADD !V1 -PORT DialNoList “123-4567b” The bridge/router dials 123-4567 three times. Positioning a Phone Number To insert a phone number into a specific position in the dial number list, enter the Pos (Position) keyword ...

116 C HAPTER 9: C USTOMIZING Y OUR S OFTWARE Using Statistics on the T1/FT1 RJ-48 Telco Port (46x and 56x) The T1/FT1 RJ-48 Telco port reports 24 hour statistics in 15 minute samples. These statistics are cumulative from the last reboot or the last time these statistics were flushed, whichever is la...

Using Statistics on the T1/FT1 RJ-48 Telco Port (46x and 56x) 117 User Statistics To view the user statistics for the T1/FT1 interface, use: SHow !<path> -PATH UserCounters Displays similar to the following will appear: CUMULATIVE STATISTICS SINCE LAST FLUSHED OR REBOOTED+ LAST 24 HOURS STATIS...

118 C HAPTER 9: C USTOMIZING Y OUR S OFTWARE Displays similar to the following appear when you enter: SHow !<path> -PATH UserCounters To flush the statistics displayed by the previous command, use: FLush !<path> -PATH UserCounters T1/FT1 Driver Statistics To show the current statistics o...

Configuring Data Compression 119 T1/FT1 Parameter Configuration Show all T1/FT1 parameters configured using: SHow -PATH T1FT1params A display similar to the following appears: Path !2 T1FrameMode = ESF Path !2 T1LineCoding = B8ZS Path !2 T1LineDistance = LH1 -0db Path !2 T1DS0ChnlBaud = FT164K Path ...

A T ROUBLESHOOTING This chapter contains the following sections: ■ Using the Monitor Utility ■ Normal LED Meanings ■ Error LED Meanings ■ Performing Loopback Tests ■ Performing a Memory Dump Using the Monitor Utility If your bridge/router is unable to boot from the software, you can attach a console...

122 A PPENDIX A: T ROUBLESHOOTING error, a message is sent to the console and you are returned to the boot monitor. Errors include: ■ The file does not exist. ■ The file has the wrong format. ■ The file has a bad checksum. Configure Flash Load Syntax CL Description The CL command allows you to confi...

Using the Monitor Utility 123 Flash Load Syntax FL <path/><filename> Description The FL command formats the flash memory and uses TFTP to copy the image from the server identified in by CL command to the flash drive. If you are using BOOTP instead of locally configured addressing in the ...

124 A PPENDIX A: T ROUBLESHOOTING Normal LED Meanings This section describes the normal operation of the SuperStack II bridge/router LEDs. System LEDs The following figure describes the system LEDs. Serial LEDs The following figure describes the serial LEDs. Lights green when the software has succes...

Normal LED Meanings 125 WAN LEDs The following figure describes the WAN LEDs when an ISDN or a CSU/DSU connection is being used. LAN LEDs The following figure describes the LAN LEDs. Lights green when the path is up. (D channel). Lights green when the ISDN line is activated. (D channel). Lights ambe...

126 A PPENDIX A: T ROUBLESHOOTING Error LED Meanings This section describes the error modes of the SuperStack II bridge/router LEDs. Troubleshooting During the Load Phase If the Load and Power/Fault LEDs in the System area light amber, a problem occurred during the system software load phase. Compar...

Error LED Meanings 127 Meaning: The software image file has been deleted or the boot source and image names do not match. Action: Follow these steps: 1 At the monitor prompt, enter: DF <path> The default path is: DF /primary The image is called boot.68k. 2 If the image has been deleted, reload...

128 A PPENDIX A: T ROUBLESHOOTING load. If the load is unsuccessful, contact your network supplier. Meaning: File read or decompression error. Action: Reload the software. See Appendix B. Meaning: File checksum error. Action: Reload the software. See Appendix B. Meaning: Unspecified fatal error. Act...

Error LED Meanings 129 Meaning: Unable to transmit BOOTP request. Action: Check cable connections. The bridge/router may not be connected correctly to the Ethernet network. Meaning: No response to BOOTP request. The BOOTP server may not be present or is incorrectly configured. Action: Check Trivial ...

Error LED Meanings 131 Troubleshooting During the Test Phase When the software load is complete, the system begins the test phase. If the Test LED lights amber, a problem occurred during the system test phase. Meaning: EEPROM checksum test failed. Action: Contact your network supplier. Errors Indica...

132 A PPENDIX A: T ROUBLESHOOTING Errors Indicated by the WAN LEDs This section describes how the WAN LEDs indicate errors on systems using ISDN or CSU/DSU connections. Meaning: Indicates a loss of signal, possibly due to a disconnected cable. Action: Check all cable connections . Meaning: An error ...

Performing Loopback Tests 133 Performing Loopback Tests This section describes the bridge/router response to a local loopback assertion and how to perform a loopback diagnostic test on the WAN and serial ports. It also describes the steps required to perform additional types of loopback tests for a ...

134 A PPENDIX A: T ROUBLESHOOTING To perform a loopback test on the built-in ISDN port, follow these steps: 1 Assign each path to separate ports, if necessary, by entering: ADD !3 -PORT PAths 3.1 ADD !4 -PORT PAths 3.2 2 Set the rate adaption parameter to automatically detect the speed of the sendin...

Performing Loopback Tests 135 8 Start the DLtest using: DLTest Start <sendingport>, <receivingport> To start the DLTest and designate port 4 to send the DLTest data and port 3 to receive and loop back the data, you would enter: DLtest START 4,3 The loopback test is successful when the nu...

136 A PPENDIX A: T ROUBLESHOOTING Before running the CSU/DSU loopback test: ■ Attach a console or Telnet to your bridge/router. ■ Cable your WAN port to the telco network. ■ Make sure the device you are connecting to supports V.54 loopback and is in loopback mode. To perform a V.54 loopback test on ...

Performing Loopback Tests 137 6 To determine the current status of the loopback test, either locally-initiated or remotely-initiated, and to determine if the V.54 loopback detection is on, enter: SHow -SYS V54Lback Performing a Local Loopback Test on the CSU/DSU Port (45x and 55x) This section descr...

138 A PPENDIX A: T ROUBLESHOOTING 5 Specify the number of seconds that the test should run using: DLTest TestDuration <seconds> If you do not enter a value, the test will run indefinitely. However, use caution when running the test for a specified duration. The test ends abruptly as soon as th...

Performing Loopback Tests 139 Performing a Remote Loopback Test on a 56/64 Kbps CSU/DSU Module This section describes how to perform a loopback test on a 56/64 Kbps CSU/DSU module. Figure 12 shows the data flow that occurs when this loopback test is performed. Figure 12 CSU/DSU Module Loopback Testi...

Performing Loopback Tests 141 Performing a Local Loopback Test on the T1/FT1 Port (46x and 56x) This section describes how to perform a local line or payload loopback test using the loopback plug on the T1/FT1port on the model 46x and 56x bridge/router. Figure 13 shows the data flow that occurs when...

144 A PPENDIX A: T ROUBLESHOOTING Performing a Loopback Test on a Serial Port This section describes how to perform a loopback test on a serial port. Figure 14 shows the data flow that occurs when a loopback test is performed on a serial line. A modem or CSU/DSU is required in this configuration. Fi...

Performing a Memory Dump 145 If the number of received packets equals or approximately equals the number of transmitted packets, your serial line has passed the serial loopback test. If your serial line does not pass the test, verify that your bridge/router is cabled correctly and that the software ...

146 A PPENDIX A: T ROUBLESHOOTING Notice to users with UNIX TFTP servers: Some UNIX TFTP servers do not have the capability to create files if they do not exist, but can overwrite an existing file. Therefore, you must first create a file with the expected dump file name on the UNIX TFTP server. The ...

Performing a Memory Dump 147 c If necessary, select Gateway from the Dump Destination menu and enter the IP address of the default gateway leading to the network on which the TFTP server resides. d If subnet masks are in use, select Subnet Mask from the Dump Destination menu and enter the subnet mas...

148 A PPENDIX A: T ROUBLESHOOTING To create a memory dump file, follow these steps: 1 On a UNIX TFTP server, create a file with the name dmXXXXXX.dmp, where XXXXXX is the last six characters of the MAC address of the Ethernet port (port 1) of the SuperStack II bridge/router. For example, if the last...

Performing a Memory Dump 149 Verifying the Memory Dump Procedure To verify that the memory dump process works, simulate a failure of the SuperStack II bridge/router. At the Enterprise OS # prompt, enter: su dm ffffff The system responds with the following information: Bus Error Address = 0xFFFFFF St...

152 A PPENDIX B: R ELOADING THE S YSTEM S OFTWARE 2 If you are using a TFTP server (without BOOTP), enter: CL The CL command allows you to configure the following settings: 1. Client 2. Server 3. Gateway 4. Subnet Mask 5. Boot Filename 6. Port Selection 7. Baud Rate 8. Duplex Mode When addressing is...

C S YNTAX C ONVENTIONS This appendix describes Enterprise OS software syntax conventions. Full Form Syntax You can see the full form syntax provided by the online help in the software by typing a question mark (?) or a question mark with other options as described in “Getting Help” on page 160. Figu...

154 A PPENDIX C: S YNTAX C ONVENTIONS Abbreviated Syntax The abbreviated syntax shown in uppercase is the shortest unambiguous abbreviation of a command, parameter, or value that can be entered. You can enter the abbreviated form in lower- or uppercase letters at the Enterprise OS prompt. Figure 16 ...

Full and Abbreviated Syntax Examples 155 Full and Abbreviated Syntax Examples The following examples show full form first followed by the abbreviated command syntax. The full form syntax: ADD !<port> -NRIP AdvToNeighbor <network>%<MAC address> [...] can be abbreviated to: ADD !<...

Using Aliases 157 Entering Service Names in Command Lines When you are configuring or displaying a parameter, service names must be provided to differentiate commands that appear in more than one service. The service name may be entered in abbreviated form. The service name must be preceded by a hyp...

158 A PPENDIX C: S YNTAX C ONVENTIONS Command History Substitution The bridge/router “remembers” the 10 most recent commands you entered. To display a list of these commands, enter: SHow History To repeat any of the commands displayed, use the event designator, which is represented by an exclamation...

Privilege Level 159 Privilege Level The privilege level determines which commands and parameters you can access. If you log on to the bridge/router with root login, your privilege level is Network Manager, which allows you access to all the commands and parameters. You can create users with either U...

160 A PPENDIX C: S YNTAX C ONVENTIONS channel number (<connectorID>.<channelID>), for example, 3.1. When specifying both a connector and channel number, you must separate the two numbers with a decimal point. If you do not specify a channel number in a command syntax that requires a conn...

D C ONNECTORS AND C ABLES This chapter describes each connector and the cables that can be used with each connector on the bridge/router. Console Connector and Cables You can connect a PC running a terminal emulation program, a terminal, or a modem to the Console connector on the SuperStack II bridg...

164 A PPENDIX D: C ONNECTORS AND C ABLES Terminal Cable Figure 18 shows the pinouts for a 9-pin female to 25-pin null modem-type cable. Figure 18 9-pin to 25-pin Terminal Cable (Null Modem-Type) Modem Cable Figure 19 shows the pinouts for a 9-pin female to 25-pin male straight-through-type cable. Fi...

LAN Connector and Cables 165 LAN Connector and Cables The two Ethernet connectors, labeled L1 and L2, can be cabled using either 10BASE-T or 100BASE-TX cabling. Boundary router models can use only the L1 Ethernet port. If you upgrade to full router software, the second port will be functional. The f...

166 A PPENDIX D: C ONNECTORS AND C ABLES Cabling Standards Cabling should be installed in accordance with the following standards: ■ EIA/TIA-568 – Commercial building telecommunications wiring standard ■ TSB-36 – Additional cable specifications for unshielded twisted pair cables ■ IBM cabling guidel...

LAN Connector and Cables 167 To create a valid collision domain diameter, you must adhere to the following maximum cable span lengths along with the collision domain diameter guidelines in Table 22: ■ UTP (running TX or T4) — Maximum cable span length is ≤ 100 m. ■ Fiber (running FX) — Maximum cable...

168 A PPENDIX D: C ONNECTORS AND C ABLES For expanded guidelines, refer to the IEEE Standard 802.3. Figure 22 Collision Domain Diameter with No Repeater Figure 23 Collision Domain Diameter with One Repeater DTE device SuperStack II NETBuilder DTE device SuperStack II NETBuilder Fast Ethernet Repeate...

LAN Connector and Cables 169 Figure 24 Collision Domain Diameter with Two Repeaters Fast Ethernet Repeater Fast Ethernet Repeater DTEdevice DTE device SuperStack II NETBuilder

170 A PPENDIX D: C ONNECTORS AND C ABLES WAN Connector and Cables The WAN connector can be an ISDN S/T (model 43x and 53x), ISDN U (model 44x and 54x), 56/64 Kbps CSU/DSU (model 45x and 55x), or T1/FT1 CSU/DSU (model 46x and 56x) connector, depending on the interface module installed. ISDN S/T Cable...

WAN Connector and Cables 171 Figure 25 shows the pin assignments of the ISDN S/T cable. Figure 25 ISDN S/T Cable RJ-45 male (shielded) To WAN port To wall outlet or NT1 1 2 3 4 5 7 8 6 RJ-45 male (shielded) 1 2 3 4 5 7 8 6 Name Abbr. Pin Pin Abbr. Name 12 3 4 5 6 78 12 3 4 5 6 78 NCNC TxD+ RxD+ RxD-...

172 A PPENDIX D: C ONNECTORS AND C ABLES ISDN U Cable To connect a model 44x or model 54x bridge/router to an ISDN network, use a Category 5 shielded twisted-pair cable with an RJ-45 connector on the bridge/router end, and an RJ-11 connector at the wall. This cable comes with your bridge/router. Fig...

WAN Connector and Cables 173 56/64K CSU/DSU Cable To connect a model 45x or model 55x bridge/router to a data digital service (DDS), use a cable with an RJ-48S connector. 3Com supplies this cable. Figure 27 shows the pin assignments of the cable with both ends terminated in RJ-48S connectors. Figure...

174 A PPENDIX D: C ONNECTORS AND C ABLES RJ-48 T1 Cable To connect a model 46x or model 56x bridge/router to a T1 or fractional T1 line, use a cable with an RJ-48 connector. 3Com does not supply this cable. Figure 27 shows the pin assignments of the cable with both ends terminated in RJ-48 connector...

Serial Connectors and Flex-WAN Cables 175 DTEs include mainframes and automatic teller machines. DCEs include modems and CSU/DSUs. A DCE must always connect to a DTE, and vice versa. If you need to connect a DTE to a DTE, or a DCE to a DCE, you can use a crossover cable between the two devices. For ...

Serial Connectors and Flex-WAN Cables 177 RS-232 DTE Cable Pinouts This cable connects the bridge/router to an RS-232 DCE. Figure 31 Flex-WAN and RS-232 DTE Connectors . Table 25 RS-232 DTE Cable Pinouts Flex-WAN Connector RS-232 DTE Connector Signal Pin Direction Pin Signal Twisted Pair * * Unused ...

178 A PPENDIX D: C ONNECTORS AND C ABLES RS-232 DCE Cable Pinouts This cable connects the bridge/router to an RS-232 DTE. Figure 32 Flex-WAN and RS-232 DCE Connectors . Table 26 RS-232 DCE Cable Pinouts Flex-WAN Connector RS-232 DCE Connector Signal Pin Direction Pin Signal Twisted Pair * * Unused t...

Serial Connectors and Flex-WAN Cables 179 V.35 DTE Cable Pinouts This cable connects the bridge/router to a V.35 DCE. Figure 33 Flex-WAN and V.35 DTE Connectors Table 27 V.35 DTE Cable Pinouts Flex-WAN Connector V.35 DTE Connector Signal Pin Direction Pin Signal Twisted Pair * * Unused twisted wires...

180 A PPENDIX D: C ONNECTORS AND C ABLES V.35 DCE Cable Pinouts This cable connects the bridge/router to a V.35 DTE. Figure 34 Flex-WAN and V.35 DCE Connectors . Table 28 V.35 DCE Cable Pinouts Flex-WAN Connector V.35 DCE Connector Signal Pin Direction Pin Signal Twisted Pair * * Unused twisted wire...

Serial Connectors and Flex-WAN Cables 181 X.21 DTE Cable Pinouts This cable connects the bridge/router to an X.21 DCE. Figure 35 Flex-WAN and X.21 DTE Connectors . Table 29 X.21 DTE Cable Pinouts Flex-WAN Connector X.21 DTE Connector Signal Pin Direction Pin Signal Twisted Pair * * Unused twisted wi...

182 A PPENDIX D: C ONNECTORS AND C ABLES X.21 DCE Cable Pinouts This cable connects the bridge/router to an X.21 DTE. Figure 36 Flex-WAN and X.21 DCE Connectors . Table 30 X.21 DCE Cable Pinouts Flex-WAN Connector X.21 DCE Connector Signal Pin Direction Pin Signal Twisted Pair * * Unused twisted wir...

Serial Connectors and Flex-WAN Cables 183 RS-449 DTE Cable Pinouts This cable connects the bridge/router to an RS-449 DCE. Figure 37 Flex-WAN and RS-449 DTE Connectors . Table 31 RS-449 DTE Cable Pinouts Flex-WAN Connector RS-449 DTE Connector Signal Pin Direction Pin Signal Twisted Pair CTS/RTS+ 1 ...

184 A PPENDIX D: C ONNECTORS AND C ABLES RS-449 DCE Cable Pinouts This cable connects the bridge/router to an RS-449 DTE. Figure 38 Flex-WAN and RS-449 DCE Connectors LL/DCD 44 → 10 LLSC 12 Circuit Ground 45 − 37 Circuit Ground Shield Ground 46 Cable Shield 1 Shield Ground - Shorting Group 1 4849 - ...

186 A PPENDIX D: C ONNECTORS AND C ABLES Table 33 RS-530 DTE Cable Pinouts Flex-WAN Connector RS-530 DTE Connector Signal Pin Direction Pin Signal CTS/RTS+ 1 ← 5 CTS+ CTS/RTS- 2 ← 13 CTS- DSR/DTR+ 3 ← 6 DSR+ DSR/DTR- 4 ← 22 DSR- DCD/DCD+ 5 ← 8 DCD+ DCD/DCD- 5 ← 10 DCD- DTR/DSR+ 7 → 20 DTR+ DTR/DSR- ...

E P ROVISIONING Y OUR ISDN L INE This appendix provides U.S., Canadian, German, and Dutch provisioning information for the built-in ISDN port on model 43x, 53x, 44x and 54x SuperStack II NETBuilder SI bridge/routers. Ordering U.S. and Canadian ISDN BRI Services To order ISDN service from your teleph...

188 A PPENDIX E: P ROVISIONING Y OUR ISDN L INE ■ Phone Numbers. Ask the telephone representative for your ISDN phone numbers and write them in the space provided. ■ Service Profile ID (SPID) Number. Ask the telephone representative for your SPID numbers. ((For a point-to-point line only one SPID ma...

189 Switch Provisioning Tables This section provides provisioning information for the following switch types in the U.S. and Canada: ■ AT&T 5ESS ■ AT&T 5ESS Custom ■ DMS 100 and National ISDN 1 ■ Siemens EWSD AT&T 5ESS Switch To order ISDN service for an AT&T 5ESS switch, provide the...

190 A PPENDIX E: P ROVISIONING Y OUR ISDN L INE AT&T 5ESS Custom Switch To order ISDN service for an AT&T 5ESS custom switch, provide the telephone company with the information in Table 35. CSD CHL Any TERMTYP TYPEA or TYPEE Display No CSD Limit 2 CA PREF 1 Table 35 Ordering ISDN Service for...

191 A point-to-point configuration on a SuperStack II bridge/router or boundary router is selected by setting the SPIDn1 and SPIDn2 parameters to none. DMS 100 and National ISDN 1 To order ISDN service for a DMS 100 or National ISDN 1 switch, provide the telephone company with the information in Tab...

192 A PPENDIX E: P ROVISIONING Y OUR ISDN L INE Siemens EWSD Switch To order ISDN service for a Siemens EWSD switch, provide the phone company with the information in Table 36. SPIDs When you request services, you may also need the following information about SPIDs and other service attributes: ■ Re...

NT1s and Power Supplies 193 ■ The SPID numbers must be unique. The 2-digit TID can be any number from 0 to 62. The TID has no effect on the operation of the SuperStack II bridge/router, but it is a necessary part of the SPID that the bridge/router uses to gain access to the ISDN network. ■ If you re...

Ordering Dutch ISDN BRI Services 195 Ordering Dutch ISDN BRI Services To order ISDN services from the Dutch PTT, follow these steps: 1 Acquire a form entitled "Aanvraag formulier ISDN aansluiting from the Dutch PTT." 2 Under 1, specify “Nieuwe ISDN-aansluiting". 3 Under 3, specify the re...

F T ECHNICAL S UPPORT 3Com provides easy access to technical support information through a variety of services. This appendix describes these services. Information contained in this appendix is correct at time of publication. For the very latest, 3Com recommends that you access the 3Com Corporation ...

198 A PPENDIX F: T ECHNICAL S UPPORT To connect to the 3Com FTP site, enter the following information into your FTP client: ■ Hostname: ftp.3com.com (or 192.156.136.12 ) ■ Username: anonymous ■ Password: <your Internet e-mail address> A user name and password are not needed with Web browser so...

Support from Your Network Supplier 199 3ComFacts Automated Fax Service The 3ComFacts automated fax service provides technical articles, diagrams, and troubleshooting instructions on 3Com products 24 hours a day, 7 days a week. Call 3ComFacts using your Touch-Tone telephone: 1 408 727 7021 Support fr...

200 A PPENDIX F: T ECHNICAL S UPPORT Below is a list of worldwide technical telephone support numbers: Country Telephone Number Country Telephone Number Asia Pacific Rim AustraliaHong KongIndiaIndonesiaJapanMalaysiaNew ZealandPakistanPhilippines 1 800 678 515800 933 48661 2 9937 5085001 800 61 00900...

Returning Products for Repair 201 Returning Products for Repair Before you send a product directly to 3Com for repair, you must first obtain a Return Materials Authorization (RMA) number. Products sent to 3Com without RMA numbers will be returned to the sender unopened, at the sender’s expense. To o...

I NDEX S YMBOLS ? command 123 Numerics 100BASE-TX cable 166 connector 165 100mb LED 125 10BASE-T cable 165 connector 165 3Com bulletin board service (3Com BBS) 198 3Com URL 197 3ComFacts 199 A abbreviated syntax 154 Active LED LAN 125 serial 124 addresses BOOTP server 108 IP, assigning 103 IPX, assi...

204 I NDEX CE notice 5 central node, configuring for Boundary Routing 101 channels B 24 D 24 command-line interface accessing 56 , 57 components of 57 service names 157 short cuts abbreviated syntax 153 aliases 157 history substitution 158 syntax abbreviated description 154 examples 155 full form de...

I NDEX 205 dial number lists 113 dial-on-demand 90 dial pool configuring ISDN 82 configuring serial 87 dynamic paths 64 dial-up configuring 79 dial number list editing 114 using 113 to 114 IPX routing 109 using OSPF 107 DialCONTrol parameter 64 dial-up lines description 25 disaster recovery 92 Displ...

3Com Corporation L IMITED W ARRANTY H ARDWARE 3Com warrants its hardware products to be free from defects in workmanship and materials, under normal use and service, for the following lengths of time from the date of purchase from 3Com or its authorized reseller: If a product does not operate as war...