Troubleshooting guide

9-5
ATM and Layer 3 Switch Router Troubleshooting Guide
OL-1969-01
Chapter 9 Troubleshooting CES Connections and Network Clocking
Initial Troubleshooting of CES
Checking the CES Circuit Status
Use the following command to confirm that the configured CES circuit is up:
Step 1 Use the show ces status command to check the status of the CES circuit.
AdminFl1Ls1# show ces status
Interface IF Admin Port Channels in
Name Status Status Type use
------------- -------- --------- ----------- -----------
CBR3/1/0 UP UP T1 1-3,7,20-22,24
CBR3/1/1 DOWN UP T1 1-24
CBR3/1/2 DOWN UP T1 24
CBR3/1/3 UP UP T1 10-13
AdminFl1Ls1#
Step 2 Check the IF and Admin Status fields to confirm that they are up.
If the interface is down, check for the following:
• Disconnected or faulty cabling—Check cables.
• Hardware failure—Swap hardware.
If administratively down, the interface has been administratively taken down. Use the no shutdown
interface configuration command to reenable the interface.
For detailed interface configuration information about CES, refer to the “Configuring Circuit Emulation
Services” chapter in the ATM Switch Router Software Configuration Guide.
Checking CES Circuit Configuration
Follow these steps to confirm that CES circuits are configured correctly:
Step 1 Use the show ces interface command to confirm the configuration of the circuit:
Switch# show ces circuit interface cbr 3/1/0 0
Circuit: Name CBR-PVC-A, Circuit-state ADMIN_UP / oper-state UP Interface CBR3/
Port Clocking network-derived, aal1 Clocking Method CESIWF_AAL1_CLOCK_SYNC
Channel in use on this port: 1-31
Channels used by this circuit: 1-31
Cell-Rate: 5447, Bit-Rate 2048000
cas OFF, cell_header 0x100 (vci = 16)
Configured CDV 2000 usecs, Measured CDV 1769 usecs
De-jitter: UnderFlow 42, OverFlow 0
ErrTolerance 8, idleCircuitdetect OFF, onHookIdleCode 0x0
state: VcAlarm, maxQueueDepth 823, startDequeueDepth 435
Partial Fill: 47, Structured Data Transfer 0
Passive SoftVC
Src: atm addr 47.0091.8100.0000.00e0.f75d.0401.4000.0c81.9030.10 vpi 0, vci 16
Switch#
Step 2 Check the oper-state field to confirm that it is up.
If it is down, verify that the aal1 Clocking Method field for each end of the circuit shows the same
configuration.