Cisco Cisco Expressway Maintenance Manual
About Event Log Levels
All events have an associated level in the range 1-4, with Level 1 Events considered the most important. The table
below gives an overview of the levels assigned to different events.
below gives an overview of the levels assigned to different events.
Level Assigned events
1
High-level events such as registration requests and call attempts. Easily human readable. For example:
■
call attempt/connected/disconnected
■
registration attempt accepted/rejected
2
All Level 1 events, plus:
logs of protocol messages sent and received (SIP, H.323, LDAP and so on) excluding noisy messages such
as H.460.18 keepalives and H.245 video fast-updates
as H.460.18 keepalives and H.245 video fast-updates
3
All Level 1 and Level 2 events, plus:
■
protocol keepalives
■
call-related SIP signaling messages
4
The most verbose level: all Level 1, Level 2 and Level 3 events, plus:
■
network level SIP messages
section for a complete list of all events that are logged by the Expressway, and the level at
which they are logged.
Event Log Format
The Event Log is displayed in an extension of the UNIX syslog format:
date time process_name: message_details
where:
Field
Description
date
The local date on which the message was logged.
time
The local time at which the message was logged.
process_name
The name of the program generating the log message. This could include:
■
tvcs for all messages originating from Expressway processes
■
web for all web login and configuration events
■
licensemanager for messages originating from the call license manager
■
b2bua for B2BUA events
■
portforwarding for internal communications between the Expressway-C and the
Expressway-E
Expressway-E
■
ssh for ssh tunnels between the Expressway-C and the Expressway-E
but will differ for messages from other applications running on the Expressway.
section for further information).
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Cisco Expressway Administrator Guide
Reference Material