Regarding source based outbound routing (with redundancy)

[joelja at bogus.com (joel jaeggli)]

On Oct 5, 2013, at 9:45 AM, Christopher Morrow <morrowc.lists at gmail.com> wrote:

> you really don't want to do policy routing :(
> 

PBR has this tendency to be brittle in the face of topology changes.

There are much better way to outbound load-balance between providers offering same or similar quality routes to the same destination.

multi-AS multipath will do that if the peers are on the same router. BGPaddpath can do it for you if the peers are spread across routers.

joel

> On Sat, Oct 5, 2013 at 12:19 PM, Anurag Bhatia <me at anuragbhatia.com> wrote:
>> Hello there!
>> 
>> 
>> I am trying to do a source based outbound routing between multiple
>> upstreams. Usually I picked outbound via localpref but here I wish to use
>> Provider 1 for say 10.10.10.0/24 while provider 2 for small chunk of it say
>> 10.10.10.0/28. I wish to keep failover support and thus so if provider 2
>> fails, I wish to push traffic again via Provider 1.
>> 
>> Is this is possible only with VRF or I can push for some specific match
>> rule in route maps?
>> 
>> 
>> 
>> Thanks.
>> 
>> --
>> 
>> 
>> 
>> Anurag Bhatia
>> anuragbhatia.com
>> 
>> Linkedin <http://in.linkedin.com/in/anuragbhatia21> |
>> Twitter<https://twitter.com/anurag_bhatia>
>> Skype: anuragbhatia.com
> 

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