Troubleshooting guide

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ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Chapter 6 Troubleshooting Switch Router ATM Network Connections
Using PNNI Trace Connection
Step 7 To display a Frame Relay PNNI trace connection, use the same show atm pnni trace connection
command. To display a specific active PNNI trace connection summary add the index number variable.
Switch# show atm pnni trace connection 100
Connection Trace Request-index: 100
Connection Type: Frame-Relay VC
Source Interface: Serial 1/1/0.100 Direction: Incoming
DLCI: 2000
Time to age: 490 seconds
Trace Flags: Connection-Id, Call-Reference, Cell-Drops
Pass Along: Requested
Trace Result: Trace Completed Normally
Follow this process to display the PNNI trace connection configuration:
Step 1 Use the show atm pnni trace information command to display the active PNNI trace connection.
Switch# show atm pnni trace information
Max TTL Size: 1466 Bytes
Accepted Requests: 29 Active Requests: 2
Max Acceptable Requests: 100 Max Concurrent Requests: 5
Boundary Interfaces:
ATM0/0/0.100
ATM1/0/1
ATM2/0/1.100
Step 2 The show atm pnni trace information command provides the following information:
• Check the Accepted Requests field. It should indicate some number less than 100, the maximum
permitted number of connections.
• Check the Active Requests field. It should indicate some number less than 5, the maximum
concurrent permitted number of requests.
Trace records for both switched and soft-VC calls are deleted automatically when that call is cleared. If,
for any reason, a soft VC is torn down, all existing trace records configured for that soft VC are deleted.
These records are deleted irrespective of the age-timer value. This deletion occurs even if the connection
is reconfigured again.
Use the commands in the following section to delete the PNNI trace connection output.
Deleting the Trace Connection Output
There are limits to the number of trace connection records that can be stored in the NVRAM of the
system. Only 5 trace connection commands can be active at one time, and a maximum of 100 request
records can be saved; to make room for additional trace connection records, you must delete the old ones.
Note Use the show atm pnni trace information command to display the status of stored trace connection
records.