Re: How offset-list works in EIGRP?

From: Toh Soon, Lim (tohsoon28@gmail.com)
Date: Thu Aug 16 2007 - 05:30:37 ART


Hi Bit,

If you do "sh ip ei top 150.1.1.0 255.255.255.0", do you notice there's an
increase in the total delay component of the route?

This delay value will be propagated to downstream neighbors, effectively
causing all downstream routers to offset the metric of the route by 1.
Correct me if I miss any point.

Thank you.

B.Rgds,
Lim TS

On 8/16/07, Bit Gossip <bit.gossip@chello.nl> wrote:
>
> Here the docs seems not to be correct: an offset of 1 adds just 1 to the
> metric not 256 as someone would understand from doccd
>
> Bit.
>
> no offset-list applied:
>
> R6#show ip route
> <....>
> D 150.1.1.0 [90/20640000] via 1.1.1.1, 00:00:13, Serial0/1
>
> ~~~~~~~~~~~~~~~~~~~~~
>
> router eigrp 1
> offset-list 0 in 1
>
> R6(config-router)#do show ip route eigrp 1
> 150.1.0.0/24 is subnetted, 1 subnets
> D 150.1.1.0 [90/20640001] via 1.1.1.1, 00:00:06, Serial0/1
>
> ----- Original Message -----
> From: "Sadiq Yakasai" <sadiqtanko@gmail.com>
> To: "Toh Soon, Lim" <tohsoon28@gmail.com>
> Cc: <ccielab@groupstudy.com>
> Sent: Wednesday, August 15, 2007 6:48 PM
> Subject: Re: How offset-list works in EIGRP?
>
>
> > Hi Toh,
> >
> > EIGRP offset list add the delay components on the composite metric
> > addvertised either in or out of an interface.
> >
> > For example, if u configure an offset-list and add 1 to an inbound
> > interface, all EIGRP routes learnt via that interface will increment
> > the delay component of the route by 1, thereby incresing the total
> > metric by 256.
> >
> > HTH
> >
> > Sadiq
> >
> > _______________________________________________________________________
> > Subscription information may be found at:
> > http://www.groupstudy.com/list/CCIELab.html



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