Troubleshooting guide

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ATM and Layer 3 Switch Router Troubleshooting Guide
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Chapter 6 Troubleshooting Switch Router ATM Network Connections
Troubleshooting Dropped Connections
Checking Network Circuit Timing
If the network timing is misconfigured, the network clock can become unsynchronized and the switch
router can start dropping cells.
For detailed configuration information, see the “Initially Configuring the ATM Switch Router” chapter
in the ATM Switch Router Software Configuration Guide.
Use the following commands to determine the clocking configuration of the interface:
Follow these steps to determine the clocking configuration of the interface:
Step 1 Use the show network command to display the clock source configuration.
ManuFl1Ls1# show network-clocks
Priority 1 clock source: ATM0/0/0
Priority 2 clock source: ATM0/0/3
Priority 3 clock source: ATM1/0/0
Priority 4 clock source: No clock
Priority 5 clock source: System clock
Current clock source: ATM0/0/0, priority: 1
ManuFl1Ls1#
Step 2 Make note of the interface configured as Priority 1 clock source.
Command Purpose
show network-clocks Shows the network clocking
configuration.
show running-config Shows the interface clock source
configuration.
show controllers [atm card/subcard/port] Shows the interface controller status.