37.1.2 Identifying AudioCodes Syslog Messages using Facility Levels
The device’s Syslog messages can easily be identified and distinguished from Syslog
messages from other equipment, by setting its Facility level. The Facility levels of the
device's Syslog messages are numerically coded with decimal values. Facility level may
use any of the "local use" facilities (0 through 7), according to RFC 3164. Implementing
Facility levels is useful, for example, if you collect the device’s as well as other equipments’
Syslog messages on the same server. Therefore, in addition to filtering Syslog messages
according to IP address, the messages can be filtered according to Facility level.
The Facility level is configured using the SyslogFacility ini file parameter, which provides
the following options:
Table 37-3: Syslog Facility Levels
Numerical Value Facility Level
16 (default)
local use 0 (local0)
17
local use 1 (local1)
18
local use 2 (local2)
19
local use 3 (local3)
20
local use 4 (local4)
21
local use 5 (local5)
22
local use 6 (local6)
23
local use 7 (local7)
Syslog messages begin with a less-than ("<") character, followed by a number, which is
followed by a greater-than (">") character. This is optionally followed by a single ASCII
space. The number is known as the Priority and represents both the Facility level and the
Severity level. A Syslog message with Facility level 16 is shown below:
Facility: LOCAL0 - reserved for local use (16)
37.1.3 SNMP Alarms in Syslog Messages
SNMP alerts are sent to the Syslog server using the following formats:
Raised Alarms: RAISE-ALARM: <Alarm Name>; Textual Description: <Textual
Description>;
Severity <Alarm Severit
y>; Source <Alarm
Source>; Uniq
ue ID: <Alarm Unique ID >.
If additional information exists in the alarm, then these are also added: Additional
Info1:/ Additional Info2:/ Additional Info3
The Messages’ Severity is as follows:
Table 37-4: Syslog Message Severity
ITU Perceived Severity
(SNMP Alarm’s Severity)
AudioCodes' Syslog Severity
Critical
RecoverableMsg
Major
RecoverableMsg
Minor
RecoverableMsg
Warning
Notice
Indeterminate
Notice
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