Troubleshooting Guide

Using software record dumps
About this task
Capture a dump of the software records from ingress traffic to help troubleshoot performance
problems. Generally, a verbosity level of 1 suffices.
Procedure
Dump software record information:
dump ar <1–12> WORD<1-1536> <0-3>
Example
VSP-4850GTSPWR+:1>enable
VSP-4850GTSPWR+:1(config)#dump ar 1 vlan 1
Variable definitions
Use the data in the following table to use the dump ar command.
Table 24: Variable definitions
Variable Value
<1> Specifies the slot number.
WORD<1-1536> Specifies a record type in the AR table. Options include vlan,
ip_subnet, mac_vlan, mac, arp, ip, ipmc, protocol, all.
<0-3> Specifies the verbosity from 0–3. Higher numbers specify more
verbosity.
Using trace to diagnose problems
Before you begin
• You must log on to at least the Privileged EXEC mode in ACLI to clear or save trace
information.
About this task
Use trace to observe the status of a software module at a given time.
For example, if you notice a CPU utilization issue (generally a sustained spike above 90%) perform
a trace of the control plane activity.
Procedure
1. Clear the trace:
Software troubleshooting tool configuration using ACLI
January 2017 Troubleshooting 100
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