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11. Reset the slot.
Command Slotnumber> reset W1
12. Save the configuration.
Command Slotnumber> save all
If LMI or Annex-D is set, the PortMaster receives DLCI information in the full status
update messages from the Frame Relay switch. The PortMaster then attempts to
discover IP addresses of other routers using Inverse ARP. You can set DLCI lists statically
as well. The show arp frm1 command lists both the static and dynamic DLCI lists for
the W1 port.
If Annex-D is available from your carrier for a new connection, it is preferable to LMI.
To connect to Cisco routers using Frame Relay, the Cisco router must be set to use
encapsulation frame-relay ietf for the serial interface; otherwise, the Cisco
frame-relay map command for your DLCI must have the ietf keyword appended.
For more information about synchronous ports, refer to Chapter 6, "Configuring a
Synchronous WAN Port."
Troubleshooting a Frame Relay Configuration
Most synchronous configurations establish links with very little trouble if you have
configured the PortMaster using information from your carrier. If you are having
problems, use the information in this section to debug your configuration.
If you are having trouble with a Frame Relay connection, do the following:
•
Wait a few moments. The process of establishing a Frame Relay link, learning the
DLCI list, and learning the IP address through Inverse ARP can sometimes take a
few moments.
•
Verify that the error counters are 0 except for abort errors. If your counters are
nonzero, the problem is external to the PortMaster.
•
Verify that you are using the correct cables and that they are attached securely to
the correct port. Not all WAN ports are capable of the same speeds.
•
Enter the following two commands to view the LMI or Annex-D keepalives:
Command> set console C0
Command> set debug 0x51
After you verify that the proper keepalives are being received, enter the following
commands to turn off the debug utility:
Command> set debug off
Command> reset console
•
If you have a Cisco router on the other end of your connection, verify that it is set
for encapsulation frame-relay ietf for the serial interface; otherwise, the Cisco
frame-relay map command for your DLCI must have the ietf keyword appended.
Using Frame Relay
Troubleshooting a Frame Relay Configuration
12-7
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Table of Contents
Troubleshooting
