RE: Square Topologies and Routing Protocol

So, what do the two routers connect to? Can that device run EIGRP?

From: James Howard [mailto:jamesh.howard37_at_gmail.com]
Sent: Monday, July 13, 2009 2:58 PM
To: Larry Hadrava
Cc: Ryan West; ccielab_at_groupstudy.com
Subject: Re: Square Topologies and Routing Protocol

thanks Larry for jumping in... I am looking to load balance lan traffic over
serial links.
On Mon, Jul 13, 2009 at 2:53 PM, Larry Hadrava
<larryh_at_ipexpert.com<mailto:larryh_at_ipexpert.com>> wrote:
Right. That is why I was asking about EIGRP running over all links or not. So,
what is the goal that you are trying to achieve? Load balancing across which
links?

Thanks
Larry Hadrava
CCIE #12203 CCNP
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com

On Mon, Jul 13, 2009 at 5:30 PM, James Howard
<jamesh.howard37_at_gmail.com<mailto:jamesh.howard37_at_gmail.com>> wrote:
thanks for the response. All links are running EIGRP... but both serial links
are not on the same router so EIGRP load balancing cannot take place or not in
the way traditional load balancing works.

On Mon, Jul 13, 2009 at 2:28 PM, Larry Hadrava
<larryh_at_ipexpert.com<mailto:larryh_at_ipexpert.com>> wrote:
Assuming that you are running EIGRP on all of the interfaces or just on the
serial interfaces?
If just on the serial then look to see if you see routes from both neighbors
in the routing table. If so them EIGRP load balancing should be taking place.
If not then you would need to make sure that you are allowing more than 1
route at a time through EIGRP and take a look at the metric. You may have to
adjust the variance to get both routes there as well.

Then you would have to determine how you wanted the load balancing to work -
per packet or per destination.
Thanks
Larry Hadrava
CCIE #12203 CCNP
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com<http://www.ipexpert.com/>

On Mon, Jul 13, 2009 at 5:17 PM, Ryan West
<rwest_at_zyedge.com<mailto:rwest_at_zyedge.com>> wrote:
It's not load balancing already??

What's are the metrics for the routes in question, if they aren't even
already, you may need to adjust delay or variance.

-ryan

-----Original Message-----
From: nobody_at_groupstudy.com<mailto:nobody_at_groupstudy.com>
[mailto:nobody_at_groupstudy.com<mailto:nobody_at_groupstudy.com>] On Behalf Of
James Howard
Sent: Monday, July 13, 2009 2:03 PM
To: ccielab_at_groupstudy.com<mailto:ccielab_at_groupstudy.com>
Subject: Square Topologies and Routing Protocol

I have 4 routers in Square topology running EIGRP. R1/R2 connected via GigE
and R3/R4 are also connected via GigE. R1 is connected via R3 using a serial
links and R2 is connected via R4 using the serial link. I am looking for
load balancing on both Serial links without employing dreaded OER.

r
James

Blogs and organic groups at http://www.ccie.net<http://www.ccie.net/>
Received on Mon Jul 13 2009 - 18:04:04 ART