Can we monitor each port of L2 and L3 switches ...?

[Subhendu Ghosh]

On Sat, 26 Apr 2003, Atul Shrivastava wrote:

> Hello All,
> 
> Is there easy way to find out the Activity of each port of L2 & L3
> switch. Right now I think that it possible if the switch has SNMP Service
> running but this is a complicated and also effects the efficiency because
> we have to query for each port. So can anybody have any idea for this to
> happen in a easy way. Suppose somebody has moved the cables coming in the
> switches then an alert must be there for this. Any help would be
> appreceated. 
> 
> Regards,
> 
> Atul Shrivastava
> 

You are looking at two different types on monitoring - activity (assuming 
traffic) which is data gathering and charting and connector installed / 
link up/down which are more fault related.

For the first - recommendation is to use a RRD based tool which will do 
the polling for you. - APAN, Cricket, etc (depending on the tool used, you 
can integrate into Nagios via thresholds and passive alerts)

For the second - look at check_ifstatu/check_ifoperstatus plugins that use 
snmp to monitor link up/down status.

-- 
-sg



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