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New Member

GLBP

Hi all

If I configured glbp weighting like this:

glbp 1 weighting 100 lower 50

glbp 1 weighting track 1 decrement 30

glbp 1 weighting track 2 decrement 30

when 1 serial become down it still forwarding , but when 2 serial become down it's not forwarder. I need anyone to suggest me if i didn't configure threshold for upper cast when 1 serial comes up , Router will become to forwarder again ?

Thanks

  • WAN Routing and Switching
3 REPLIES
New Member

Re: GLBP

please explain the topology too.

New Member

Re: GLBP

Hi

I have two routers share-loading in the same network with glbp and each router have two serial interfaces. If i configure glbp weighting on the router like this :

track 1 interface s0/0 line protocol

track 2 interface s0/1 line protocol

glbp 1 weighting 100 lower 50

glbp 1 weighting track 1 decrement 30

glbp 1 weighting track 2 decrement 30

In this cast if only one serial change to down router still forwarding , but when all serial become down it's not forwarder. I need anyone to suggest me if i didn't configure threshold for upper cast when some serial (serial0/0 or 0/1)change state to up. this router will become to forwarder again ?

thanks

New Member

Re: GLBP

hi pccthailand ,

please find the below details.

Your upper limit will be 100 by default even it's not configured.

When multiple tracked interfaces are down, the configured weighting decrements are cumulative.

track interface -->

This command ties the weighting of the GLBP gateway to the availability of its interfaces. It is useful for tracking interfaces that are not configured for GLBP.

When a tracked interface goes down, the GLBP gateway weighting decreases by 10. If an interface is not tracked, its state changes do not affect the GLBP gateway weighting. For each GLBP group, you can configure a separate list of interfaces to be tracked.

The optional value argument specifies by how much to decrement the GLBP gateway weighting when a tracked interface goes down. When the tracked interface comes back up, the weighting is incremented by the same amount.

Rgrds

Rajeev.S

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