[j-nsp] Monitoring memory usage via SNMP

[Lars Erik Gullerud]

If you just need to look at the memory usage on the RE, you can poll the 
jnxOperatingBuffer (1.3.6.1.4.1.2636.3.1.13.1.11) and, if necessary, the 
jnxOperatingHeap (1.3.6.1.4.1.2636.3.1.13.1.12) tables, both from the 
Juniper Chassis-MIB. We do this from InfoVista to monitor general memory 
usage on various components in the boxes, so it shouldn't be too hard to 
get going from e.g. Nagios. You can map the components corresponding 
to the various indexes in jnxOperatingDescr table.

If you want to monitor the process in particular, REs seem to support most 
of the standard HOST-RESOURCES-MIB - don't know if you can get the process 
info though, as I haven't been playing with that part myself.

/leg

On Thu, 20 Apr 2006, Jee Kay wrote:

> Is there any way to monitor current memory usage via SNMP?
>
> We currently have an 'interesting' rpd problem where memory leaks
> slowly over a week or so from ~30M up to 250M which promptly kills the
> router. Unfortunately short of logging into the platform and checking
> manually, I havn't found a way of getting the current usage
> information.
>
> If you can, I could put it into our Nagios and do all sorts of crazy
> proactive things :)
>
> Thanks in advance,
> Ras
>
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