Cisco Cisco Expressway 维护手册
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/rejected
Note that endpoints or other devices cannot register to the Expressway. Registration requests will be
rejected and will be logged with 'License limit exceeded' messages.
rejected and will be logged with 'License limit exceeded' messages.
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
messages such 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.
Notes:
■
Events are always logged locally (to the Event Log) regardless of whether or not remote logging is enabled.
■
Logging at level 3 or level 4 is not recommended for normal operation, because such detailed logging may
cause the 2GB log to rotate too quickly. You may need to record this level of detail while troubleshooting.
cause the 2GB log to rotate too quickly. You may need to record this level of detail while troubleshooting.
■
Changes to the log level affect both the Event Log that you can view via the web interface, and the
information that is copied to any remote log server.
information that is copied to any remote log server.
■
Changes to the log level are not retrospective — they only affect what is logged after you change the level.
■
The Expressway uses the following facilities for local logging. The software components / logs that map to the
(local) facilities are emphasised:
(local) facilities are emphasised:
—
0 (kern)
—
3 (daemon)
—
16 (local0) Administrator
—
17 (local1) Config
—
18 (local2) Mediastats
—
19 (local3) Apache error
—
20 (local4) etc/opt/apache2
—
21 (local5) Developer
—
22 (local6) Network
Logging Media Statistics
When you switch Media statistics to On, the Expressway starts logging media statistics to the local hard disk, in
/mnt/harddisk/log. Up to 200 files of 10MB each are stored, with the oldest being deleted when the 200
/mnt/harddisk/log. Up to 200 files of 10MB each are stored, with the oldest being deleted when the 200
th
is full.
Media statistics messages are also published as syslog messages. While the Media statistics logging option is on, the
Expressway publishes statistics using facility 18 (local2) to all remote syslog servers you have configured.
Expressway publishes statistics using facility 18 (local2) to all remote syslog servers you have configured.
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Cisco Expressway Administrator Guide
Maintenance