On Thu, Mar 19, 2020 at 02:30:14PM -0400, Tim Rozet wrote: > In addition I can see in my setup that conntrack and ovs-dpctl all the > states are established: > sctp,orig=(src=169.254.33.1,dst=169.254.33.2,sport=38982,dport=31769),reply=(src=10.244.0.5,dst=169.254.33.1,sport=62324,dport=38982),zone=9,protoinfo=(state=ESTABLISHED,vtag_orig=3615038536,vtag_reply=554870550) > sctp,orig=(src=169.254.33.1,dst=169.254.33.2,sport=38982,dport=31769),reply=(src=169.254.33.2,dst=169.254.33.1,sport=31769,dport=38982),protoinfo=(state=ESTABLISHED,vtag_orig=3615038536,vtag_reply=554870550) > sctp,orig=(src=169.254.33.1,dst=10.244.0.5,sport=38982,dport=62324),reply=(src=10.244.0.5,dst=100.64.0.1,sport=62324,dport=38982),zone=8,protoinfo=(state=ESTABLISHED,vtag_orig=3615038536,vtag_reply=554870550) > sctp,orig=(src=100.64.0.1,dst=10.244.0.5,sport=38982,dport=62324),reply=(src=10.244.0.5,dst=100.64.0.1,sport=62324,dport=38982),zone=15,protoinfo=(state=ESTABLISHED,vtag_orig=3615038536,vtag_reply=554870550) > > At this point the connection is open and only heartbeats and HB Acks are > being sent. However, if I poll ovs-dpctl dump-flows, the only flow I see > with sctp get hit every few seconds with 1 packet is: > recirc_id(0x1c),in_port(3),ct_state(+new-est-rel-rpl-inv+trk),ct_label(0/0x1),eth(),eth_type(0x0800),ipv4(dst=169.254.33.2,proto=132,frag=no),sctp(dst=31769), > packets:1, bytes:98, used:3.885s, actions:hash(l4(0)),recirc(0xfd) > > Notice the match contains "+new" but there is no new session here. I'm > using openvswitch-2.12.0-1.fc31.x86_64.
Not saying that that's the reason, but to have in mind, heartbeats can create new conntrack entries. That's how it (conntrack) supports SCTP's multihoming. Marcelo _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
