From: Jonathan R. Charles (jrcdehc@ameritech.net)
Date: Tue Sep 28 2004 - 02:31:41 GMT-3
I ran into an interesting problem, I had a customer who had a looped
topology (with multiple paths to destinations). We needed to influence the
path selection criteria...
What we ended up doing is fudging the bandwidth statements, labeling a T1 as
having 500MB of speed to offset paths on fast Ethernet that would have to
use a slower WAN link (768k).
I found it interesting that EIGRP is too stupid to realize that a link to a
destination may be MUCH slower than its immediately connected link:
For example:
100mb - 768k - 768k - 10mb is preferred over:
1.5MB ptp...
The only fix (without using PBR which would have been far too complex to set
up over the phone) was to manipulate BW...
Jonathan
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Ozgur Ocal
Sent: Monday, September 27, 2004 23:59
To: mani_ccie@yahoo.com; Matt.Seppeler@InetX.com; ccielab@groupstudy.com
Subject: RE: EIGRP METRIC
You may change the BW(intf command) as well to change metric of eigrp, but
this may effect other routing protocols. Preferred parameter to adjust for
eigrp is delay.
cheers,
Oscar
>From: mani poopal <mani_ccie@yahoo.com>
>Reply-To: mani poopal <mani_ccie@yahoo.com>
>To: Matthew Seppeler <Matt.Seppeler@InetX.com>, ccielab@groupstudy.com
>Subject: RE: EIGRP METRIC
>Date: Mon, 27 Sep 2004 12:49:51 -0700 (PDT)
>
>Thanks Matt,
>
>I thought we could use offset list to change the metric of eigrp too.
>
>Mani
>
>Matthew Seppeler <Matt.Seppeler@InetX.com> wrote:
>Mani,
>
>One way I know of changing the metric in EIGRP is via the delay command
>in interface configuration mode. To see the default delay, use the show
>interfaces command.
>
>Matt Seppeler
>InterNetwork Experts
>Email: mseppeler@inetx.com
>
>
>-----Original Message-----
>From: mani poopal [mailto:mani_ccie@yahoo.com]
>Sent: Sunday, September 26, 2004 9:23 PM
>To: ccielab@groupstudy.com
>Subject: EIGRP METRIC
>
>Hi Group,
>
>I tried to change eigrp metric from a neighbor using following two
>commands, but I couldn't achieve the desired result, I would like to
>know the mistake I am making. Any feed back is appreciated(I know I
>could adjust bandwidth and delay to modify metrics of eigrp)
>
>R1 s0 -----------------eigrp 100--------------- s0 R2
>
>R2
>int s 0
>offset-list 0 in 5555 interface serial 0
>PS: I thought R2 should change the metric of all learned
>routes(offset-list 0) to 5555. I even applied following command on R1,
>offset-list 0 out 5555 serial 0. I know that I could have chaged delay
>at R1, S0 or link bandwidth, but I wanted to see the result by using
>offset list command. In RIP this command modifies the metric, hop
>count. In EIGRP this command must change the composite metric.
>
>thanks in advance
>
>Mani
>
>
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