Hello everyone, For some implementation of ours, we need to mark the socket buffer(sk_buff->skb_mark) using flows in an openvswitch (v 2.0) before sending it through an egress vxlan port on the OVS, for setting ToS and CoS values using iptables command later.
VXLAN offload is not enabled on the host, so we believe that the packet should travel through the host UDP/IP stack after VXLAN encapsulation. In this link below, I read that pkt_mark is supported as a MATCH field. Does OVS support pkt_mark as a SET action? the man page does not talk about the SET part. https://www.mail-archive.com/dev@openvswitch.org/msg36020.html The command I ran is /usr/bin/ovs-ofctl add-flow -O Openflow13 br0 " hard_timeout=3600,idle_timeout=30,table=1,priority=10,cookie=2,in_port=3, dl_type=0x800,nw_dst=2.2.2.2,dl_dst=52:54:00:aa:93:9e,actions=set_tunnel:222, set_field:1.1.1.128->tun_dst,set_field:222->pkt_mark,output:1" No errors were seen with the CLI and I see packet count getting incremented for the flow in the dump-flows output: cookie=2, duration=33.059s, table=1, n_packets=34, n_bytes=3332, idle_timeout=30, hard_timeout=3600, priority=10,ip,in_port=3,dl_dst=52:54:00:aa:93:9e,nw_dst=2.2.2.2 actions=set_tunnel:0xde,load:0x1010180->NXM_NX_TUN_IPV4_DST[], load:0xde->NXM_NX_PKT_MARK[],output:1 Later, set the ToS & CoS using iptables command: iptables -I POSTROUTING -o eth1.1 -m mark --mark 222 -t mangle -j TOS --set-tos 104 iptables -I POSTROUTING -o eth1.1 -m mark --mark 222 -t mangle -j CLASSIFY --set-class 0:2 But in the final packet, I do not notice any ToS/CoS values set? Any thoughts on this would help Regards, Nirmal _______________________________________________ dev mailing list dev@openvswitch.org http://openvswitch.org/mailman/listinfo/dev
