[rrd-users] OT: Cisco ISDN call duration/number monitoring howto

[Stanley Hopcroft]

Dear Ladies and Gentlemen,

I am writing to apologise for this off-topic letter and ask for any 
pointers on monitoring ISDN usage (ie number of calls and call duration) 
for Cisco routers.

It seems to me that feasable approaches are

. parsing syslog generated files (the calles forward call complete 
messages to syslogd at a central site)

. using the CISCO-ISDN-MIB and polling

 CISCO-ISDN-MIB::demandNbrLastDuration
 CISCO-ISDN-MIB::demandNbrAcceptCalls

for Neigbours (Nbrs) that are allowed to call (or similar OIDs for the 
callers).

The application is of course capacity planning and cost attribution: 
those that are foolish enough to use on-demand ISDN calls (charged by 
time) to provide bandwidth on demand may have some sympathy.

Actually, I am not sure that this sort of application is even a
candidate for RRD storage. I suppose a GAUGE value can be written each
poll cycle for 'calls completed|accepted' and likewise another GAUGE
value for call duration.

Any comments or pointers are most welcome.

Thank you,

Yours sincerely.

-- 
------------------------------------------------------------------------
Stanley Hopcroft
------------------------------------------------------------------------

'...No man is an island, entire of itself; every man is a piece of the
continent, a part of the main. If a clod be washed away by the sea,
Europe is the less, as well as if a promontory were, as well as if a
manor of thy friend's or of thine own were. Any man's death diminishes
me, because I am involved in mankind; and therefore never send to know
for whom the bell tolls; it tolls for thee...'

from Meditation 17, J Donne.

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