Load balancing between two Routers

[chaitu_kranthi]

Hi All,

We have a network topology like 2821 router with MPLS link and 881 Router with DSL Connection(DMVPN).

MPLS Link runs in BGP

DSL Connection runs in EIGRP.

So the existing scenario is like When ever MPLS link goes down Traffic will be moved to DSL connection. and once it come again it will be moved back to DSL using HSRP we are doing this. in this case most of the times my DSL connection will be in standby mode.

Now my management decided to use both the links in active state and want to do some load balance between the links for some specific traffic like Internet, WSUS Updates, Antivirus updates need to go through the DSL connection even the MPLS is up and running.

Can someone help me on this.

[Kasiraman S]

Hi,

I would say its better to have a PBR to send the more preffered traffic over the MPLS path either based on the source/destination or protocol or Marking. Remaining traffic can be passed on to the backup link with some object tracking technic would help in finding out the problem in the backup path and you can fall back to the primary.

Thanks,

Kasi

[Haris P]

Dear Chaitu,

You can try IP SLA with NAT for acheiving this . Please refer the below link

http://www.cisco.com/en/US/tech/tk648/tk361/technologies_configuration_example09186a00808d2b72.shtml

You can create ACL to match the specific traffic like Internet, WSUS Updates, Antivirus updatesand then NAT with your ADSL connection