Re: BGP Reverse Path Selection

On Mon, Mar 26, 2012 at 12:27 AM, jesus And Pals <jesusnpals_at_gmail.com>wrote:

> Hi ,
>
> We have a similar setup in our company , we generally advertise equal
> blocks on both providers .
>
> Every once in a while we come up with a situation where we would like to
> influence traffic on the fly .
> We have tried AS- Path prepend and run into complications ever so often,
> maybe it was just how we were doing it i guess . ( on Juniper's )
> But my point is we devised a simpler way to do it ..which guaranteed that
> we could influence the path easily .
> This will only work if you are advertising big blocks which i assume u are
> .
>
> Let us suppose we advertised 2 blocks out Carrier A and Carrier B ( both
> /19 )
> So the carrier u want to be preferred for the reverse path , Just break
> the /19 into two /20 routes .
> So since u have a more specific route out there in the Internet with new
> /20 its is the preferred inbound route for traffic .
>
> Hope this helps .
> -ty
>
> On Mon, Mar 26, 2012 at 12:00 AM, Saravanan Ponnaiah <
> saravanan.ponnaiah8_at_gmail.com> wrote:
>
>> Dear Expert,
>>
>> My network is having a two EBGP links with Different providers, I want to
>> manipulate the Reverse traffic via one provider & forward via another
>> provider. Is any other way to manipulate the EBGP reverse path traffic
>> other than AS PATH Attribute
>>
>> With Regards
>>
>> P.Saravanan
>>
>>
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Received on Mon Mar 26 2012 - 00:28:15 ART