Avaya Using Technician Interface Software Instrukcja Użytkownika Strona 299

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Using Syslog Messaging to Monitor Router Events
C-5
Figure C-2. Router Event Message Filtering for One Host
Polling the Events Log
Syslog polls the events log buffer on the local slot to retrieve any new messages
logged since the previous polling attempt. Syslog polls the local slot at an interval
determined by the set value of the wfSyslogPollTimer (poll timer) attribute. You
can accept the system default value or set a customized value for this attribute.
Identifying Entity Filters
Each protocol and system service in the router software has a unique entity
number. (For a complete list of entity numbers, refer to the guide Event Messages
for Routers and BNX Platforms.) The router software uses an entity number plus
the IP address of a specific remote host to identify each entity filter you configure
on the router.
For example, if you configure a filter that selects only messages logged by entity
number 2 (IP) on a router, Syslog forwards those messages only to the host IP
address associated with that filter.
You must also assign a filter index number (wfSyslogEntFltrIndex) to each filter
you configure for the same entity and remote host pair. Assign a value of 1 to the
first filter you configure for a specific entity and remote host pair. To each
subsequent filter that you configure for the same entity and remote host pair,
assign an index number, increased by +1.
Select by 
entity
number
Select by event
number range
Select by event
severity levels
Select by slot
number range
New unfiltered
messages from
the events log
Filtered 
event
messages
for a 
designated
remote
host
(OR)
Entity Filter for one host:
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