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 the PNNI Lowest-level Interface
Note NNI interfaces require both QSAAL and PNNI PVCs, but UNI interfaces only require
the QSAAL PVC along with the Interim Local Management Interface (ILMI) PVC.
• If VCs with PNNI and QSAAL are shown, but the status is not UP on an interface with an IF status
that is UP, confirm that the interface has the manual-well-known-VC mode disabled and that the
interface is type NNI.
Note If the neighbor node has multiple hierarchy levels and if one of its higher-levels matches
the level and peer group ID of the lowest-level local node, then it is normal for a PNNI
SVCC-RCC to be set up to communicate to the same level LGN, in addition to the PNNI
PVC that communicates to the lowest-level PNNI node of the neighbor.
Checking PNNI PVC Status on Lowest-level Interfaces
Use the following commands to check the PNNI PVC status:
Follow these steps to troubleshoot the PNNI PVC status:
Step 1 Use the show atm pnni interface atm card/subcard/port detail command to confirm PNNI PVC status.
Note You can use the show atm pnni interface command to show PNNI information for all of the
interfaces.
Command Purpose
show atm pnni interface atm card/subcard/port
detail
Confirms the PNNI PVC status.
show atm pnni interface Confirms the status of all PNNI
interfaces.
show atm pnni local-node Confirms that the lowest-level peer group
IDs match.
show atm pnni hierarchy network detail Confirms that a common higher-level
peer group ID exists.