Hi David, Are you hoping to get these routes from queries via the CLI/API or are you prepared to write a plugin in VPP to extract and publish this information to your control plane via new events? For the former, Stanislav’s advice is your best option. So I would suggest you consider the latter, then you have the option of walking the FIB graph from the neighbour/adjacency and pushing to the CP all the routes that were affected.
/neale From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> on behalf of David Gohberg via lists.fd.io <gohberg=gmail....@lists.fd.io> Date: Thursday, 23 December 2021 at 17:55 To: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> Subject: Re: [vpp-dev] searching for all routes that point to an attached next-hop neighbor #routing posting again because not sure message went through: Thanks for the quick reply Stanislav, I'm inserting hooks into the VPP control plane in order to offload certain information to an external hardware dataplane. In the case of route resolutions, I want to be able to say : "Ok, I got the arp reponse for 10.0.0.2, let's get all the routes that point to this nexthop" so I can send them to the hardware. For now, routes are added using vpp cli, but this logic should hold regardless of the route source (BGP etc).
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