HSRP Interface Tracking

Unanswered Question
Jun 7th, 2007

Hi Sir,

I'm configuring HSRP interface tracking feature. I use the track object method, as follows:

!

track 1 interface s0/0/0 line-protocol

!

interface FastEthernet0/0

standby 1 track 1 decrement 20

!

What's the difference if I configure the track object using the "ip routing" keywords instead, as follows:

!

track 1 interface s0/0/0 ip routing

!

In both cases, if interface s0/0/0 is down, it will trigger HSRP to reduce the priority by 20.

My understanding is, if only tracking of line protocol is required, we can configure the following method:

!

int fa 0/0

standby 1 track s0/0/0 20

!

Please advise.

Thank you.

B.Rgds,

Lim TS

I have this problem too.
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uvaraj Thu, 06/07/2007 - 20:34

Hi,

If you configure "track 1 interface s0/0/0 line-protocol" it will check only the interface line status ie layer2 issues.

If you configure "track 1 interface s0/0/0 ip routing" it will check the layer3 issues routing issues.

Regards

Uvaraj

limtohsoon Thu, 06/07/2007 - 21:38

Hi,

What type of routing issues associated with the interface? Neighbor adjacencies (e.g. OSPF, EIGRP)? What about if static routing is used instead? Or RIP?

Thank you.

B.Rgds,

Lim TS

limtohsoon Sun, 06/10/2007 - 06:12

Hi Narayan,

Thanks for the info. I know the command "track ip route".

However, my original question is about the difference between the following two commands:

track 1 interface line-protocol

track 1 interface ip routing

Thank you.

B.Rgds,

Lim TS

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