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Configuring a Frame Relay Network Interface

After you have configured a NetWare Link/Frame Relay WAN interface board, as described in Setting Up in the Boards documentation, you need to configure a frame relay network interface.


How to Configure a Frame Relay Network Interface

Before you begin, make sure you have planned your frame relay network. Refer to Planning for frame relay checkpoints and planning information.

To configure network interface parameters for NetWare Link/Frame Relay, complete the following steps:

  1. Load NIASCFG, then select the following parameter path:

    Select Configure NIAS > Protocols and Routing > Network Interfaces

  2. Select an unconfigured port on a WAN interface board, then press Enter.

    The Select A Medium screen is displayed.

  3. Select Frame Relay, then press Enter.

    The Frame Relay Network Interface Configuration menu is displayed. The Interface Name field is a read-only field. It displays the name defined in the Configured Boards screen.

  4. In the Interface Status field, accept Enabled by pressing the Down-arrow key to skip to the next field, or press Enter to select Disabled from the pop-up menu.

    This field is most often used to test a particular board configuration: by disabling other boards, it prevents them from loading.

  5. In the Physical Type field, accept V.35 by pressing the Down-arrow key to skip to the next field, or press Enter to select a new value from the pop-up menu.

    The possible physical interface types are RS-232, RS-422, V.35, or X.21. Select the one you are using.

  6. In the Interface Speed field, accept External, or press Enter to select a new value from the pop-up menu.

    Internal speeds vary with the driver selected.

  7. In the Data Encoding field, accept NRZ, or press Enter to select NRZI from the pop-up menu.

  8. Select Expert Configuration, then press Enter.

    The Frame Relay Expert Configuration menu is displayed.

    The default values for the frame relay expert parameters should be adequate for most applications. You should accept these values.

  9. Enter a valid value in the User Data Size field, then press Enter.

    This value specifies the largest amount of data, in bytes, that this interface supports. This is the maximum size of user data frame that can be received on this link. The range of values is 1 to 4,520 bytes; the default value is 4,202 bytes.

    This size should be smaller than the frame size that the network can accommodate. The data size you specify here should not be larger than the Maximum Physical Packet Receive Size value in the STARTUP.NCF file. Make sure that both sides of the link have the same configured Maximum Physical Packet Receive Size value in their respective STARTUP.NCF files.

    WARNING:  If you choose to increase the user data size, you must also use the INSTALL utility to edit the STARTUP.NCF file and change the Packet Receive Size to a value greater than the value of the User Data Size.

    When communicating between a Novell Internet Access Server 4.1 system and a NetWare MultiProtocol RouterTM 2.11 system (without the 81466.ETF patch), you must set the NetWare Link/Frame Relay User Data Size to a value 1 byte larger than that of NetWare MultiProtocol Router 2.11.

    When communicating between a Novell Internet Access Server 4.1 system and a NetWare MultiProtocol Router 2.11 system with the 81466.ETF patch (the RFC 1490 upgrade), you must set the NetWare Link/Frame Relay User Data Size to the same value on both sides. In all cases, the NetWare Link/Frame Relay User Data Size value must be less than or equal to the Physical Packet Size value (the system ECB size).

  10. Enter a valid value in the Send Queue Limit field, then press Enter.

    This value specifies the maximum number of outbound data packets that can be queued to this port for transmission. When the queue limit is exceeded, the most recently queued outbound packets are dropped.

    The range of values is 0 through 512 packets; the default value is 100 packets (0 = disable, allowing unlimited queue depth).

  11. Highlight the Parameter Group field, then press Enter. The available options are displayed in a pop-up menu.

    This value specifies the type of link management used. LMI and Annex D both provide the same types of management, but with different parameter settings. The only difference is that Annex D enables an unrequested status from the network.

    The Point-to-Point Test allows you to test two routers or servers using frame relay in a point-to-point test procedure. The default option is Annex D Parameters.

  12. Press Enter to view or change the Parameter Group Configuration parameters.

    This menu shows the configurable parameters of the specific parameter group you selected (LMI or Annex D).

    The LMI or Annex D parameters have defaults that should be adequate for most applications. You should accept these values.

    1. Enter a valid value in the Full Status Enquiry Counter field, then press Enter.

      This value specifies the number of status inquiries that are exchanged before a full status inquiry of the network is issued.

      The network responds with a full status message, and the router updates its network informational status.

      The range of values is 1 through 255 inquiries. The default value is 6.

    2. Enter a valid value in the Error Threshold Counter field, then press Enter.

      This value specifies the maximum number of error events detected within the most recent monitored events (specified by the Monitored Event Counter parameter). An alarm is generated if this counter is exceeded.

      This counter must be less than or equal to the Monitored Event Counter value.

      The range of values is 1 through 10. The default values are 2 events for LMI and 3 events for Annex D.

    3. Enter a valid value in the Monitored Event Counter field, then press Enter.

      This value specifies the number of most recent consecutive exchanges to be monitored by the router.

      This counter must be greater than or equal to the Error Threshold Counter value.

      The range of values is 1 through 10 events. The default is 4.

    4. Enter a valid value in the Status Polling Timer field, then press Enter.

      This value specifies the number of seconds between consecutive status inquiries initiated by the router to the network. At the specified time interval, the router requests a sequence number exchange status. An error is detected if the router does not receive a status message response within the specified polling time.

      The range of values is 5 through 30 seconds. The default values are 10 seconds for LMI and 15 seconds for Annex D.

  13. Press Esc, select Yes when prompted to save your changes, then press Enter.

  14. In the Enterprise Specific Traps field, press Enter to view or modify the SNMP traps.

    The Frame Relay Enterprise Specific Traps Configuration menu is displayed.

    1. In the Interface Status Change Trap field, accept the default value, Disabled, or press Enter to select Enabled from the pop-up list.

      Enabling this parameter causes frame relay to generate Simple Network Management Protocol (SNMP) traps when a frame relay interface link status is changed (up or down).

    2. In the DLCI Status Change Trap field, accept the default value, Disabled, or press Enter to select Enabled from the pop-up list.

      Enabling this parameter causes frame relay to generate SNMP traps when a DLCI status is changed (active, inactive, or valid).

    3. In the Physical Bandwidth Threshold Trap field, accept the default value, Disabled, or press Enter to select Enabled from the pop-up list.

      Enabling this parameter causes the WAN Hardware Specific ModuleTM (WHSM) software to generate SNMP traps while the Physical layer's send or receive utilization exceeds the Bandwidth Upper Threshold value, and to continue to generate SNMP traps until the Physical layer's send or receive utilization falls below the Bandwidth Lower Threshold value.

    4. In the Bandwidth Lower Threshold field, set the value to any number greater than or equal to zero, but less than the Bandwidth Upper Threshold value.

      Once the Physical layer's send or receive utilization exceeds the Bandwidth Upper Threshold value, the WAN driver continues to generate SNMP traps until the utilization falls below this value.

    5. In the Bandwidth Upper Threshold field, set the value to any number less than 100 and greater than the Bandwidth Lower Threshold value.

      Once the Physical layer's send or receive utilization exceeds this value, the WAN driver generates SNMP traps until the utilization falls below the Bandwidth Lower Threshold value.

  15. Press Esc as many times as necessary to return to the Internetworking Configuration menu.



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