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Latency monitoring on 2 interfaces of the same router

  • 15 May 2023
  • 5 replies
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Userlevel 1
Badge +7

Hello Community !

2 interfaces of a CISCO router are configured with an IP address (Gi0/0/1 = 10.1.1.1 and Gi0/0/2 = 10.1.1.2).

I’d like to monitor the latency to reach, with my Centreon poller, on both interfaces, Gi0/0/1 and Gi0/0/2.

Do I have to create 2 hosts (because IP are differents), which is very host-consuming, or do you know any other solution to perform the measurement ?

Thanks,

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Best answer by Jumulus 15 May 2023, 14:03

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5 replies

Userlevel 2
Badge +5

Hello,

if the interfaces are on the same device, how could you have differents latency ?

I mean in both case it’s the same device responding.

if you have a look at 

/usr/lib64/nagios/plugins/check_icmp --help

You can add host in the same ping service, so on the same service you will have the both interface.

 

 

 

 

 

Userlevel 2
Badge +5

In other words:

1°)duplicate the ping service with the first interface.

2°) In the ping_1 service, in extraoption, add -H “the second ip” 

Userlevel 1
Badge +7

Many thanks, Jumulus, it’s exactly what I wanted to perform !

About your request, to reach the first and the second IP address of the router, we don’t use the same routing path. The consequence is a latency quite different ; with Centreon we’ll be able to measure the time difference, and it will be an help to determine the best solution to implement.

Userlevel 2
Badge +5

Ok, I understand, i did nearly the same on my network.

 

When you have this kind of question, always try a --help on the command, in most case the answer is here ! :)

have a nice day.

Userlevel 5
Badge +11

Hi @pierre1,

If one of the responses hits the spot for you, be sure to label it "Best Answer". That way, all the other lost souls wandering the internet can find the right solution in a snap.

Big ups to you, and a huge shoutout to @Jumulus for coming in clutch with the answer to your initial query 😉

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