Re: Square Topologies and Routing Protocol

James,

You would need to run GLBP or multi-group HSRP to have both routers be
utilized as a gateway for hosts on the LAN, each router already preferring
it's serial link to reach the Ethernet segment on the opposite end.

I am assuming that by LAN traffic you mean hosts connected to R1/R2 and the
other segment being hosts connected to LAN with R3/R4.

Is that what you are talking about?

On Mon, Jul 13, 2009 at 4:04 PM, Ryan West <rwest_at_zyedge.com> wrote:

> 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
>
>
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-- 
Bryan Bartik
CCIE #23707 (R&S), CCNP
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com
Blogs and organic groups at http://www.ccie.net