Hi Linhua,

First of all, you need to bind an IP address on NIC that DPDK manages. You
can look at https://github.com/victordetoni/dpdk-l3fwd-acl this project and
copy arp (line 644) and ip stack (line 2024). After that, you can set as
next-hop on bgp the ip address that dpdk manages.

Maybe it's not clear yet, but dpdk is a framework that allows you to create
your own network apps. Search on google bgp projects that supports bgp,
quagga etc.

On Mon, Apr 4, 2022 at 7:29 AM Linhua Tang <linhua.tang.mr@gmail.com> wrote:

> Hi everyone,
>
> I'm new to DPDK, I have a question on how to announce VIP through BGP for
> my LB based on DPDK.
>
> The design looks like this:
>
>    - I have multiple hosts (virtual machines or physical machines), every
>    host advertising the same VIP, 10.0.0.10 for example.
>    - Each LB host has two NICs, one for DPDK, one for admin purposes.
>    - LB forward the packets to backend servers based on VIP configuration
>
>
> Normally, I use Bird or Quagga for BGP advertising, but I don't know how
> to make BGP work with DPDK applications. Do I need to implement BGP within
> the DPDK application? It looks overkilling to me.
>
> Looking forward to getting advice from you, or pointing me to any
> references.
>
> Thanks very much.
>
> Best wishes,
> James
>