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 SVCC-RCC and Higher-level Links
• Horizontal link states—Kept independently for each of the aggregation tokens that exist between a
pair of LGNs. There is a unique (hexadecimal) port ID assigned for each of the aggregation tokens
between a pair of LGNs, even though they are included in one common hello message.
For detailed configuration information, see the “Configuring ATM Routing and PNNI” chapter in the
ATM Switch Router Software Configuration Guide.
This section contains the following procedures:
• Checking the PNNI Aggregated Horizontal Link Interface Status
• Checking SVCC-RCC Status
• Checking SVCC-RCC Hello State
• Debugging SVCC-RCC and Higher-level Link Problems
Checking the PNNI Aggregated Horizontal Link Interface Status
Use the following commands to check the status of all PNNI aggregated horizontal links and induced
uplinks:
Follow these steps to troubleshoot a higher-level LGN and the status of all PNNI aggregated horizontal
links and induced uplinks at that level:
Step 1 Use the show atm pnni interface local-node node-index command to check all PNNI aggregated
horizontal links and induced uplinks at the LGN level:
Switch1# show atm pnni interface local-node 2
PNNI Interface(s) for local-node 2 (level=40):
Local Port Type RCC HrzLn St Deriv Agg Remote Port Rem Node(No./Name)
~~~~~~~~~~~~~ ~~~~~ ~~~ ~~~~~~~~ ~~~~~~~~~~ ~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~
2C49000 HrzLn UP 2way 0 2230000 10 Switch2.2.40
2C49003 HrzLn UP 2way 3 2230003 10 Switch2.2.40
2276000 UpLnk - n/a 0 FFFFFFFF 11 Switch4
Switch1#
Note You can leave off the local-node option to show information for interfaces at all node levels
present on the switch router.
If all of the expected interfaces between a pair of LGNs are missing, or if the RCC is not UP, proceed
with the following SVCC-RCC checks.
If the RCC is listed as UP, but ports are missing for some expected aggregation tokens, proceed to the
Troubleshooting PNNI Hierarchical Networks.
Command Purpose
show atm pnni interface local-node node-index Confirms the status of all PNNI
aggregated horizontal links and induced
uplinks.
show atm pnni neighbor Verifies that the neighbor peer LGN has
reached the full state for its database
synchronization.