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C H A P T E R
4
F E A T U R E S
4.3.3
The SYSLOG menu
The SYSLOG feature allows the V100 to send log messages to an external server known as a Syslog
Daemon. The protocol for sending these messages is described in RFC 3164. The protocol is run over UDP
port 514.
The customer defines the IP address of the Syslog Daemon. If no IP address is specified then no log
messages are sent to the Syslog Daemon. The messages that are sent can also be seen in the diagnostic
log pages. They include a timestamp from the V100 indicating when the message was generated and two
sequence numbers. Each trace type (CONNECTION, CONFIGURATION, IP, etc) has its own sequence
range – this is the first sequence number generated. The second is a sequence number for all messages
sent to the Syslog Daemon. These sequence numbers provide the user with an indication as to whether a
log message has been missed. The message format is:
Nodename: Timestamp : (Specific Seq No : Overall Seq No) Trace message
The Syslog protocol provides a mechanism for each message to be sent with a category and a priority, to
allow facilities such as filtering on the Syslog Daemon. The V100 sends all of its messages with a priority
of 6 (Informational). Configuration options are provided to enable categories to be used for each type of
log message. Each log message type can be configured to generate Syslog messages at categories Local0
through Local7, or not at all (Disabled). For example if a user wants to use the Syslog facility to monitor
only voice port call records, then configure the Call Records category for Local0 and disable the category
for all other traces.
V100 Versatile Multiplexer Technical Manual Version 2.2
Page 132 of 231
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