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
Troubleshooting PNNI Hierarchical Networks
For detailed configuration information, see the “Configuring ATM Routing and PNNI” in the
ATM Switch Router Software Configuration Guide.
This section contains the following procedures:
• Checking Uplinks for Peer Group
• Checking Missing Upnode or Aggregation Token Pairs
Checking Uplinks for Peer Group
To see the table that summarizes all of the uplinks for a peer group, enter the show atm pnni
aggregation link command on the switch router acting as the PGL. The display also shows the port
identity of the induced horizontal or uplink for the parent LGN.
Use the following command to check the uplinks for the peer group on the PGL:
Follow these steps to check the PGL uplink summaries:
Step 1 Use the show atm pnni aggregation link command.
Switch# show atm pnni aggregation link
PNNI link aggregation for local-node 2 (level=40, name=Switch5.2.40)
Upnode Number: 10 Upnode Level: 40 Upnode Name: Switch7.2.40
AggToken InducPort BorderPort Border Node(No./Name)
~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~
0 2C49000 ATM0/1/0 9 Switch6
ATM0/1/2 1 Switch5
3 2C49003 ATM0/0/0 11 Switch3
Upnode Number: 11 Upnode Level: 24 Upnode Name: Switch8.3.24
AggToken InducPort BorderPort Border Node(No./Name)
~~~~~~~~~~ ~~~~~~~~~ ~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~
0 2276000 ATM0/1/1 9 Switch6
Step 2 If an expected Upnode and AggToken (Aggregation Token) pair is missing from the PGL uplink
summaries table, proceed to the “Checking Missing Upnode or Aggregation Token Pairs” section to
determine whether the PGL knows about an uplink PTSE originated by one or more known border nodes.
Command Purpose
show atm pnni aggregation link Confirms the PGL summary uplink to the
peer group.