rab at walkermartyn.co.uk - Bayesian Filter detected spam - Re: What Switch Metric Are You Monitoring

[Robert Jackson]

I'm having problems sourcing a plug-in to monitor CPU and interface
bandwidth. I would also prefer plug-ins with output to allow graphing
trends by PNP4Nagios. Do you know of any?

 

From: Claudio Kuenzler [mailto:ck at claudiokuenzler.com] 
Sent: Friday 13 August 2010 15:33
To: Nagios Users List
Subject: rab at walkermartyn.co.uk - Bayesian Filter detected spam - Re:
[Nagios-users] What Switch Metric Are You Monitoring

 

The same checks as the others mentioned:
CPU utilization, environment (Power Supplies, FAN), child-parent
relationship and uptime.

Additionally to that, depending on the switch, I also check the Cisco
Stack status, the memory usage and either a single port or several port
ranges for their operational status. 

On Fri, Aug 13, 2010 at 1:25 PM, Jim Avery <jim at jimavery.me.uk> wrote:

On 13 August 2010 10:20, Robert Jackson <rab at walkermartyn.co.uk> wrote:
> I'm currently on Nagios Core 3.2.1 and I'm just starting to setup
monitoring
> of our network switches. Can someone share what switch metrics they
are
> recording (and find most useful). Just now, I'm only registering PING
and
> Uptime (through SMNP). Also how are you handling parent/child
relationships
> for the switches/ports etc? Basically if a switch is down, then I
would only
> want to receive and alert regarding this and not anything else related
to
> the port or device connected to the port.

I configure the switch to send traps to the Nagios server (received
using snmptrapd and processed using snmptt), and configure the switch
so that traps are sent if switch-switch links go up/down but not
ordinary switch ports with servers and PCs on.

Other than that, I monitor link bandwidth where it really interests
me, for example on the ports serving our most busy systems and one or
two which link main data centres together.

The usual rule with Nagios parent relationships is that the parent is
the device closer to the Nagios server than the child.  Don't forget
you can have more than one parent if that's how your network is.

hth,

Jim


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