[c-nsp] BGP Multipath

[Robert Raszuk]

You need eiBGP multipath for this.

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/iproute_bgp/configuration/15-s/irg-15-s-book/irg-eibgp-multipath-for-nonvrf-interfaces.html


Thx,
R.

On Thu, Aug 13, 2020 at 1:54 AM Yham <yhameed81 at gmail.com> wrote:

> Hello Gentlemen,
>
> I wanted to configure whether BGP multipath feature work for/install a
> route learned from the same AS but eBGPand iBGP neighbors.
>
> for example, I have four routers A, B, C & D. Router A and B are iBGP
> neigbors in ASN100 and a prefix 10.0.0.0/8 attache to both. Router C and D
> are iBGP neighbors in ASN100. Router A has an eBGP with Router C and Router
> B has an eBGP neighborship with Router D.
> Now Router A receives prefix 10.0.0.0/8 from Router C via eBGP and from
> Router B via iBGP. In this scenario, Router A install the prefix in routing
> table that learned from Router C because it learned via eBGP. So the
> question is can I have both eBGPand iBGP paths install in the routing table
> with the help of multipath feature? I tried but it didn't work.
>
> In a nutshell, i wanted to ask if Multipath work for a prefix that being
> learned from eBGP and iBGP?
> From my understanding, all the best path criteria have to tie before
> multipath comes in picture.
>
> Regards
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