Re: asymmetric routing

Hi Marc

Its is one AS bro, im stumped a bit here...

Say that same source gets to a subnet behind CE1 and everything works fine
on this inbound-to-outbound path then the same source decides to reach a
subnet behind CE2 where inbound everything is ok but outbound for the CE2
originating subnet it prefers CE1 due to best path selection 11 lowest
router-id..

Now if I knew the source prefix I would create a standard ACL and route map
to achieve the desired goal, I'm sure I can figure this out with some help
:0)

Tony

On 2 March 2013 02:40, marc abel <marcabel_at_gmail.com> wrote:

>
> Is it one provider or 2? Can you do As path prepending?
>
>
> On Fri, Mar 1, 2013 at 8:23 PM, Tony Singh <mothafungla_at_gmail.com> wrote:
>
>> Hi Experts
>>
>> Just like to gauge what would you do on best practice if we have the
>> following scenario
>>
>> PE1>CE1>FW>SW>trunk>SW>FW>CE2>PE2
>>
>> SW's are RR
>>
>> traffic inbound to particular subnets is influenced by outbound policies
>> on
>> the MED attribute, but my problem is when routing outbound the lowest
>> router-id of CE1 wins when the packet originated from CE2
>>
>> Now "when you do not know" what the out-to-in source prefixes will be,
>> then
>> what is the best design practice you would follow?
>>
>> BR
>>
>> Tony
>>
>>
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>
>
> --
> Marc Abel
> CCIE #35470
> (Routing and Switching)

Blogs and organic groups at http://www.ccie.net
Received on Sat Mar 02 2013 - 02:56:13 ART