[c-nsp] MPLS/VPN Loadbalancing with 2 CPE routers

[Chris Stand]

Bonjour,

   I do not know your exact topology well enough, but could you run GLBP on
a vlan that goes through the L3 switch ( I am not aware of a switch that
ONLY does L3 and does not allow you to pass L2 through at the same time.  I
do GLBP on 7K & VSS links that run through other 6500s.

Or, again not being fully knowledgeable on your network , could you do 2
HSRP groups on the LAN and use both default gateways at the same time on
devices that point to the existing HSRP ".1"

If you have not done this before you make routerA active in group1, standby
in group2; routerB standby in group1, active in group2.



Message: 10
> Date: Fri, 20 Dec 2013 16:35:43 +0100
> From: Nicolas KARP <liste at karp.fr>
> To: "cisco-nsp at puck.nether.net" <cisco-nsp at puck.nether.net>
> Subject: [c-nsp] MPLS/VPN Loadbalancing with 2 CPE routers
> Message-ID:
>         <
> CAELGAXcJQ1EEnLEcZaUsy-EWDsMFZRT+00KKnPu2jEte+4ogRQ at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Hi Guys,
>
> We have a customer who has 2 CPE routers. We have 2 uplinks, the first one
> attached to the first router CPE1, the second one attached to the second
> router CPE2.
>
> We have ebgp configured with 2 different PE's and IBGP between the CPE's.
> HSRP is configured on the LAN. Unfortunately, we can't use GLBP because
> there is a L3 switch behind the CPE's.
>
> How can we achieve the loadbalancing between the 2 links ?
>
> PE1            PE2
>   |                |
>   |                |
> ebgp           ebgp
>   |                |
>   |                |
>  CE1 --Ibgp--- CE2
>
>
> Thanks and Best Regards,
>
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> # - -   Network and Security Engineer
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