Logs and Monitoring

Commands for configuring syslog, SNMP monitoring, console logging, and viewing system logs for troubleshooting

Syslog Configuration

logging [destination] [level]

  • Configures logging destinations
  • Levels: 0-7 (emergency to debugging)

logging host [ip-address]

  • Sets syslog server destination

logging trap [level]

  • Sets severity level for syslog server

logging buffered [size] [level]

  • Configures local buffer logging

Console & Terminal Logging

logging console [level]

  • Sets console logging level

logging monitor [level]

  • Sets VTY session logging level

terminal monitor

  • Enables syslog display on VTY

SNMP Monitoring

snmp-server community [string] [ro|rw]

  • Configures SNMP community strings

snmp-server host [ip] version [ver] [community]

  • Sets SNMP manager destination

Log Verification

show logging

  • Displays log buffer contents
  • Shows logging configuration

show logging history

  • Shows SNMP log history

show snmp

  • SNMP statistics and configuration

Example Config

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logging buffered 64000 informational
logging host 192.168.1.100
logging trap warnings
logging source-interface loopback0

snmp-server community public ro
snmp-server host 192.168.1.100 version 2c public