Log events cannot be sent to a syslog target host until a valid syslog ID exists.
Use the following CLI syntax to configure a syslog file:
config>log 
    syslog syslog-id
        address ip-address
        description description-string
        facility syslog-facility
        level {emergency | alert | critical | error | warning | notice | info | debug}
        log-prefix log-prefix-string
        port portThe following displays an example of the syslog file configuration command syntax:
config# log
config>log# syslog 1
config>log>syslog$ description "This is a syslog file."
config>log>syslog# address 10.10.10.104
config>log>syslog# facility user
config>log>syslog# level warningThe following displays the syslog configuration:
ALU-12>config>log# info
----------------------------------------------
...
        syslog 1
            description "This is a syslog file."
            address 10.10.10.104
            facility user
            level warning
        exit
...
----------------------------------------------
ALU-12>config>log#