Avaya Troubleshooting Routers Guide de dépannage télécharger pdf (Page 92)

Troubleshooting Routers

5-14

Troubleshooting a Frame Relay Connection

This section assumes that you have isolated a problem to a Frame Relay

connection. If not, refer to Chapter 2 to determine whether these instructions

apply to your problem.

Filter the log to display only messages from the Frame Relay entity running on the

slots experiencing the problem. The Technician Interface command is

log -fftwid -eFR -s

<slot_no.>

Example

If you are ﬁltering events from Slots 3 and 4, you enter

log -fftwid -eFR -s3 -s4

Refer to the symptoms identiﬁed in the sections that follow:

•“Lo

g messages from Frame Relay Indicate Circuit Is Down”

•“F

rame Relay Switch Keeps Marking the Circuit as Down”

•“F

rame Relay Circuit Up, but Protocol Data Is Not Transmitting”

•“PVC

Transmitting, but Not Receiving”

•“F

rame Relay Conﬁgured with LMI Invokes an Xoff State”

Log messages from Frame Relay Indicate Circuit Is Down

Troubleshoot as follows:

1. Check the Sync interface statistics to determine whether the Sync

interface is receiving and sending trafﬁc.

2. Make sure the status message timeout conﬁgurations of the switch and

the router are the same.

3. Determine whether the virtual circuit and synchronous interface are

receiving packets.

4. Make sure the circuit is enabled.

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Avaya Troubleshooting Routers Guide de dépannage Page 92