Configuring Logging; Event Log Levels; Remote Logging Of Events - Cisco TelePresence Administrator's Manual
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- Administrator's manual (498 pages) ,
- Manual (24 pages) ,
- Specifications (7 pages)
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Maintenance
Configuring logging
The VCS provides an event logging facility for troubleshooting and auditing purposes. The Event Log records
information about such things as calls, registrations, and messages sent and received.
The VCS's logging options are configured on the
can:
specify the Log level to set the amount of information to record
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copy the Event Log to a remote syslog server
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Event Log levels
You can control which events are logged by the VCS by setting the Log level.
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.
Level Assigned events
1
High-level events such as registration requests and call attempts. Easily human readable. For example:
call attempt/connected/disconnected
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registration attempt/accepted/rejected
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2
All Level 1 events, plus:
logs of protocol messages sent and received (SIP, H.323, LDAP and so on) excluding noisy messages
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such as H.460.18 keepalives and H.245 video fast-updates
3
All Level 1 and Level 2 events, plus:
protocol keepalives
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call-related SIP signaling messages
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4
The most verbose level: all Level 1, Level 2 and Level 3 events, plus:
network level SIP messages
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See the
Events and levels
which they are logged.
Note that:
Logging at level 3 or level 4 is not usually recommended as the Event Log holds a maximum of 2GB of data
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and logging at these levels on a busy system may cause the Event Log to be recycled too quickly.
Changes to the log level affect both the Event Log that you can view via the web interface, and the
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information that is copied to any remote log server.
Changes to the log level are not retrospective — they only affect what is logged from that point onwards.
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Remote logging of events
The Event Log is always stored locally on the VCS. However, it is often convenient to collect copies of all
event logs from various systems in a single location. This is referred to as remote logging. This is particularly
recommended for peers in a cluster.
Cisco VCS Administrator Guide (X8.1.1)
Logging
section for a complete list of all events that are logged by the VCS, and the level at
page
(Maintenance >
Logging) from where you
Configuring logging
Page 281 of 507
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