Technical data

Using Syslog Messaging to Monitor Router Events
303561-A Rev 00
C-9
Syslog retrieves the variables shown in brackets ([ ]) from the router’s system log
message or from the host table. The next sections describe the variables for:
•IP header
• UDP header
• UDP data
• Priority code
IP Header
Syslog adds to any event message that passes all filtering criteria the destination
IP address for a specific remote host.
Figure C-3. Syslog Message Encapsulation
"{<priority code>} {Syslog message}"
"<[Facility] | [Level]>"
"[Entity]: [Description] SLOT:[Slot Number] SEVERITY:[Severity Level]
ENTITY_CODE/EVENT_CODE: [Entity_code/Event_code]"
[IP header] [UDP header]
UDP data
TS0003B