check_snmp to monitor isdn if on cisco?

[Schmitz, Carsten]

Hi,

Many thanks for the reply.

> What do you want to monitor for the isdn connections?

I'd like to be able to fetch the status (up or down) of each of the eight ISDN lines from the 2600, and the status of the one DSL line from the 828. Eventually, I'd like to set up nine seperate Nagios service checks, one for each line, which reports "up" or "down".

Thanks,
Carsten


-----Original Message-----
From: Subhendu Ghosh [mailto:sghosh at sghosh.org]
Sent: Wednesday, January 26, 2005 4:05 PM
To: Schmitz, Carsten
Cc: nagios-users at lists.sourceforge.net
Subject: Re: [Nagios-users] check_snmp to monitor isdn if on cisco?


On Wed, 26 Jan 2005, Schmitz, Carsten wrote:

>
> Hi,
>
> Is anyone using Nagios to monitor the ISDN / SDSL ports on a Cisco 2600 or 828, respectively?
>
> The network folks told me I should be able to send queries with snmp. Did that before (I monitor Windows boxes with snmp which works fine). But I can't get data from the device and I think maybe I have the wrong "oid".
>
> I'm not an expert on snmp, I pieced together OIDs from
>
> ftp://ftp.cisco.com/pub/mibs/oid/CISCO-ISDN-MIB.oid   and
> http://carsten.familie-doh.de/mibtree/cisco-isdn.html
>
> and end up with something like this:
>
> /usr/local/nagios/libexec/check_snmp -H ip_address -C community_string -o ".1.3.6.1.4.9.9.26.1.1.1.16"
> SNMP problem - No data recieved from host
> CMD: /usr/bin/snmpget -t 1 -r 9 -m ALL -v 1 -c aegongs 212.29.172.2:161  .1.3.6.1.4.9.9.26.1.1.1.16
>
> Anyone done this before and could confirm, or supply me with a valid OID?

I haven't done anything with this particular MIB - but your OID is 
incomplete for check_snmp.

the base oid should be  .1.3.6.1.4.9.9.26.1.1.1.1.16 (note four 1s between 
26 and 16)

To the base oid you need to append the table index values
namely:
1. demandNbrPhysIf (the ifIndex value of the D channel for the
    neighbor)
2. demandNbrId (a table sequence number)


Also the base oid above - is for RowStatus and does not tell you anything 
about the line being up/down .

The NeighborTable only stores call information.

for the object descriptions...
ftp://ftp.cisco.com/pub/mibs/v2/CISCO-ISDN-MIB.my

What do you want to monitor for the isdn connections?

-- 
-sg


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