ITHELPDESK

Number Keyword Description Attention Required 0 Emergency System down or unusable Severe 1 Alert Immediate  action required Severe 2 Critical Critical event Important 3 Error Error event Important 4 Warning Warning event Important 5 Notification Normal (but notable) Worth to get notified, but not to worry 6 Informational Normal (only informational) To inform the admin. 7 Debug All messages as requested by user debug Debug Cisco Syslog protocol Severity levels – Points to remember ·          Syslog messages are required to know the normal events or critical events happening in a cisco switch or router. ·          Severity level’s lowest number i.e. ‘0’ resembles the high...

Cisco devices try to notify administrators when major or minor events take place in the connected network.  This notifications or messages are called Syslog messages. Cisco devices can be configured to show Real-time messages and stored log messages. Real-Time Messages Real-time messages for Console users By default, Cisco IOS displays log messages to console users for all severity levels of messages. Because of the default logging console global configuration command. Real-time messages for Telnet and SSH users             By default, Cisco IOS has global configuration command – logging monitor that tells IOS to allow the sending of log messages to all logged users.       But, that default configuration is not sufficient to allow the user to view the log messages. terminal monitor EXEC command should be issued by the user during the login session to inform IOS that this terminal session would like to rece...