Feature Summary and Revision History 125
System Log Types 126
Configuring Event Logging Parameters 127
Configuring Event Log Filters 128
Exec Mode Filtering 128
Global Configuration Mode Filtering 130
Configuring syslog Servers 131
Configuring Active Logs 131
Specifying Facilities 132
Configuring Trace Logging 141
Configuring Monitor Logs 141
Enabling Monitor Logs 141
Disabling Monitor Logs 141
Viewing Logging Configuration and Statistics 142
Viewing Event Logs Using the CLI 142
Configuring and Viewing Crash Logs 143
Crash Logging Architecture 143
Configuring Software Crash Log Destinations 144
Viewing Abridged Crash Log Information Using the CLI 145
Reducing Excessive Event Logging 146
Configuring Log Source Thresholds 147
Checkpointing Logs 147
Saving Log Files 148
Event ID Overview 148
Event Severities 157
Understanding Event ID Information in Logged Output 157
CHAPTER 15
Troubleshooting 159
Verifying Network Connectivity 159
Using the ping or ping6 Command 159
Syntax 160
Troubleshooting 160
Using the traceroute or traceroute6 Command 160
traceroute – IPv4 161
traceroute6 – IPv6 161
ASR 5500 System Administration Guide, StarOS Release 21.5
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