VPP accepts the frame based on the MAC, but there is no handler for the ISIS MAC type, so it is dropped. You’ll need to add support for this.
/neale From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> on behalf of Mohamed Naiem via lists.fd.io <mnaiem81=gmail....@lists.fd.io> Date: Thursday, 15 September 2022 at 21:08 To: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> Subject: Re: [vpp-dev] ISIS with VPP+FRR Looks for me like problem is VPP doesn't know about AllIntermediateSystems MAC so it drops received packet, I tired to switch network-type to broadcast but still doesn't work considering AllL2ISs MAC as well. Not sure if thats right but I'm trying to let VPP know about ISIS MACs 16:43:14:359481: bond-input src 40:01:7b:77:5d:d0, dst 09:00:2b:00:00:05, TwentyFiveGigabitEthernet41/0/0 -> BondEthernet0 16:43:14:359482: ethernet-input 0x057a: 40:01:7b:77:5d:d0 -> 09:00:2b:00:00:05 802.1q vlan 2000 16:43:14:359482: llc-input LLC osi_layer5 -> osi_layer5 16:43:14:359482: osi-input OSI isis 16:43:14:359482: error-drop rx:BondEthernet0.2000 16:43:14:359482: drop osi-input: unknown osi protocol
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