Syslog message format

Last Updated : May 02, 2023 |

Syslog messages are arranged chronologically and have the following format:

<34> Oct 11 22:14:15 host LINKDOWN [005ms, SWICHFABRIC-Notification:Port 10/3 Link,
ID=1234567890

The message provides the following information:

  • A priority (<34> in this example) that is calculated based on the syslog facility and the severity level.

  • A header (Oct 11 22:14:15 host LINKDOWN in this example), providing the date and time, the hostname, and a message mnemonic.

  • A message (005ms, SWICHFABRIC-Notification: Port 10/3 Link in this example), detailing the milliseconds, the application being logged, the severity level, the message text, and a product identification number.