Troubleshooting guide

6-23
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
Step 3 In ATM signaling diagnostics mode, use the incoming-port atm command to configure an ATM port for
filtering.
Switch(cfg-atmsig-diag)# incoming-port atm 0/0/0
Step 4 Use the called-nsap-address command with the 20-octet called NSAP address to configure an ATM
NSAP address for filtering.
Switch(cfg-atmsig-diag)# called-nsap-address
47.0091.8100.0000.00e0.4fac.b401.4000.0c80.8020.00
Step 5 Use the status-active command to start capturing records for this filter.
Switch(cfg-atmsig-diag)# status active
Step 6 Exit ATM signaling diagnostic mode, and use the show atm signalling diagnostic filter command to
confirm that the filter is properly configured and active.
Switch(cfg-atmsig-diag)# end
Switch# show atm signalling diagnostics filter 1
F I L T E R I N D E X 1
------------------------------
Scope: all, Cast Type: all
Connection Kind: all
Service Category: all
Clear Cause: 0, Initial TimerValue: 600
Max Records: 20, NumMatches: 0, Timer expiry: 557
Incoming Port: ATM0/0/0, Outgoing Port: 0
Calling Nsap Address:NULL
Calling Address Mask:NULL
Called Nsap Address :47.00918100000000E04FACB401.40000C808020.00
Called Address Mask :NULL
Status : active
Switch#
Step 7 Retry to set up the SVC from the end system.
Step 8 Use the show atm signalling diagnostic record command to examine the first filter record (labelled as:
D I S P L A Y I N D E X 1).
Switch# show atm signalling diagnostic records 1
<Display Omitted>
Switch#
Note No signaling diagnostic records are captured if the signaling set-up is successful, or if the
connection is immediately released by the End System.
If no captured records appear for an unsuccessful set-up, the problem is at the originating UNI, or end
system.
Step 9 Check the Calling-Address field. If the address is wrong, check the end system configuration.
If no list of DTLs are shown, see the following section, “Debugging PNNI SVC Routing.”
If there is a Crankback type listed, see the “Checking SVC Downstream” section on page 6-27.