MAX Administration Guide
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Understanding Syslog messages
Syslog is not a MAX unit status display, but an IP protocol that sends system-status messages
to a host computer, known as the Syslog host. The Log Host parameter in the Ethernet profile
specifies the Syslog host, which saves the system-status messages in a log file. The messages
are derived from two sources: the Message Log display and the Call Detail Reporting (CDR)
display.
Once you have verified that Syslog is enabled on the MAX unit, use syslog messages to
understand the performance of the unit or to gather information tunneling information that is
included in the End-of-Call Syslog message. When a call comes to an end, use the disconnect
and progress codes to understand why a call may have disconnected unexpectedly and at what
stage the call disconnected.
Refer to the UNIX man pages about logger(1), syslog(3), syslog.conf(5), and syslogd(8) for
details of the syslog daemon.
Note:
Stacked MAX units communicate with other members of the stack by using a
directed-broadcast Ethernet packet on the specified UDP port. Because directed-broadcast
packets are unlikely to cross a router, and because of the high traffic demands created by a
multilink call that spans MAX units, all members of a stack must reside on the same physical
LAN. The Syslog function requires UDP port 514.