From: John Matus (John.Matus@tokiom.com)
Date: Thu Sep 15 2005 - 17:06:30 GMT-3
bandwidth is definitlly going to be the main way to achieve load-balancing.
if the paths are equal metric you're set. if not, use the bandwidth
command. there may be a circumstance where you cannot use the bandwitch
command so you'll have to use varience. if you cannot use varience then
you'll have to manipulate the delay (there is a good IE lab that
illustrates this........i won't pretended to fully understand this aspect
yet).
so
1) bandwitch already equal - do nothing, unless you want more than 2 path,
then issue "manimum-paths X"
2) bandwidth is not equal - use bandwitch command, or use varience command
3) if your not allowed to use variance, then use delay
Regards,
John D. Matus
Technical Support / PAS
Fujitsu Consulting
626-568-7716
John.Matus@tokiom.com
Ed Tan
<tytanx@gmail.com
> To
Sent by: ccielab@groupstudy.com
nobody@groupstudy cc
.com
Subject
Re: EIGRP load balance
09/15/2005 11:39
AM
Please respond to
Ed Tan
<tytanx@gmail.com
>
Hi All,
Below are the conclusions from my testing and I welcome any input.
The key is to adjust the metric/cost to "equal-metric" path if variance
command is not allow for EIGRP unequal-cost path load balancing.
1) Bandwidth command under EIGRP interface - if the path calculation is not
too complex, this is the easiest!
2) Offset-list command under router eigrp - use it when you need more
advance route control eg ACL, or when the bandwidth calculation is too
complicated (+- the metric definitely easier than */+)
3) If redistribution involved, tune the metric during the redistribution.
Thanks again for your time.
Ed.
On 9/14/05, John Matus <john_matus@hotmail.com> wrote:
>
> i guess i should have said "equal-metric" paths, and i probably should
> have
> read scott's response first :)
>
>
> >From: "John Matus" <john_matus@hotmail.com>
> >Reply-To: "John Matus" <john_matus@hotmail.com>
> >To: swm@emanon.com, tytanx@gmail.com, ccielab@groupstudy.com
> >Subject: RE: EIGRP load balance
> >Date: Wed, 14 Sep 2005 19:38:17 +0000
> >
> >yes, by default eigrp does load-balance for equal-cost paths. it's the
> >unequaual cost paths you have to worry about....
> >
> >
> >>From: "Scott Morris" <swm@emanon.com>
> >>Reply-To: "Scott Morris" <swm@emanon.com>
> >>To: "'Ed Tan'" <tytanx@gmail.com>, "'Group Study'"
> >><ccielab@groupstudy.com>
> >>Subject: RE: EIGRP load balance
> >>Date: Wed, 14 Sep 2005 09:07:28 -0400
> >>
> >>So... Ask yourself some questions.
> >>
> >>1. What does the variance command do?
> >>2. If I understand what the variance command does, where do I find the
> >>information that it would use to influence its decisions?
> >>3. Once this is found, you have the answer to what needs to change (and
> >>which direction) in order to make this work. Go to 'router eigrp 1' and
> >>use
> >>the '?' command to assist in looking for things that will manipulate
> what
> >>you want to.
> >>
> >>Post your findings and reasons and we'll go from there!
> >>
> >>DocCD may assist as well.
> >>
> >>Scott
> >>
> >>-----Original Message-----
> >>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Ed
> >>Tan
> >>Sent: Wednesday, September 14, 2005 2:52 AM
> >>To: Group Study
> >>Subject: EIGRP load balance
> >>
> >>Hi group,
> >>
> >>I am just wondering is it anyway to configure EIGRP load balance
without
> >>using "variance" command?
> >>
> >>TIA,
> >>Ed
> >>
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