On 18 Mar 2022, at 18:46, Klement Sekera <klem...@graphiant.com<mailto:klem...@graphiant.com>> wrote:
On 18 Mar 2022, at 18:43, Ole Troan <otr...@employees.org<mailto:otr...@employees.org>> wrote: On 18 Mar 2022, at 17:40, Klement Sekera <klem...@graphiant.com<mailto:klem...@graphiant.com>> wrote: I like the idea of VPP sending RST for cases where the session doesn’t exist or for some reason the state is invalid. It might also be a good idea to implement VPP sending TCP keepalives for idle sessions to discover whether the peers are still active, but that is a separate task. Aren’t both tricky unless you track sequence numbers? For first, it’s a reply - you receive a packet for non-existent sessions and reply with a RST. No tracking required. First case is basically same thing as sending ICMP port unreachable when UDP packet is received on a closed port… Second - yes. More complicated. Cheers Ole
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