“In its most simplistic terms, the syslog protocol provides a transport to allow a machine to send event notification
messages across IP networks to event message collectors - also known as syslog servers.” – RFC 3164
Note: the default facility is 3(DAEMON)
(switch(config)#) Configure logging:
logging <syslog-ip-address> [trap {<log-level> | override class <class> priority <log-level>}]