Troubleshooting guide

6-17
ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Chapter 6 Troubleshooting Switch Router ATM Network Connections
Troubleshooting SVC Connections on a PNNI Routing Network
This section contains the following procedures:
• Checking the SVC Status at the End UNI Interface
• Checking UNI Interfaces
• Debugging SVC Signalling
• Alternate SVC Diagnostics
• Debugging PNNI SVC Routing
• Checking ATM Routes
• Checking PNNI Topology
• Checking SVC Downstream
Checking the SVC Status at the End UNI Interface
Use the following commands to check SVC interface status:
Follow these steps to confirm whether there is a new SVC connection from the originating side of the
UNI interface to the intended remote or destination ATM network service access point (NSAP) address:
Step 1 Use the show atm vc signalling interface atm card/subcard/port detail command on the originating
side.
RemDvLs1# show atm vc signalling interface atm 3/1/1 detail
interface = ATM3/1/1, call remotely initiated, call reference = 19
vcnum = 0, vpi = 0, vci = 18, state = Active(EngFl1Ls1), point-to-point call
<Information Deleted>
timer currently inactive, timer value = 00:00:00
Remote Atm Nsap address: 47.0091810000000060705BD900.123412344321.11
local , Req Connect Ack -> Active(EngFl1Ls1),
<Information Deleted>
RemDvLs1#
Command Purpose
show atm vc signalling interface atm
card/subcard/port detail
Confirms the SVC connection to the
intended destination ATM NSAP address.
show atm vc interface atm card/subcard/port vpi
vci
Confirms the destination UNI connection
is up, and confirms the correct traffic
characteristics are being used.