Description of problem: In order to complete https://bugzilla.redhat.com/show_bug.cgi?id=1847570 introduce IPv6 support to OVN BFD implemetation Version-Release number of selected component (if applicable): How reproducible: Steps to Reproduce: 1. 2. 3. Actual results: Expected results: Additional info:
upstream commit: https://github.com/ovn-org/ovn/commit/ecc7bd74d8c045c15ea27954f5441d8d21198d50
~~~~~~~~~~~~ Modified script in bug 1918997 adding ipv6 ~~~~~~~~~~~~ systemctl start ovn-northd ovn-nbctl set-connection ptcp:6641 ovn-sbctl set-connection ptcp:6642 systemctl start openvswitch ovs-vsctl set open . external_ids:system-id=hv0 external_ids:ovn-remote=tcp:1.1.173.25:6642 external_ids:ovn-encap-type=geneve external_ids:ovn-encap-ip=1.1.173.25 systemctl start ovn-controller ovn-nbctl lr-add lr1 ovn-nbctl lrp-add lr1 lr1p1 00:00:00:01:0f:01 1.1.1.1/24 2001:db8:1000::1/64 ovn-nbctl lr-route-add lr1 2001:db8:2000::/48 2001:db8:1000::2 lr1p1 bfd_uuid=$(ovn-nbctl create bfd logical_port=lr1p1 dst_ip=\"2001:db8:1000::3\" min_tx=250 min_rx=250 detect_mult=10) ovn-nbctl --bfd=$bfd_uuid lr-route-add lr1 2001:db8:3000::/48 2001:db8:1000::3 lr1p1 ovn-nbctl --ecmp lr-route-add lr1 2001:db8:4000::/48 2001:db8:1000::4 lr1p1 ovn-nbctl --ecmp lr-route-add lr1 2001:db8:4000::/48 2001:db8:1000::5 lr1p1 ovn-nbctl --ecmp-symmetric-reply lr-route-add lr1 2001:db8:5000::/48 2001:db8:1000::5 lr1p1 ovn-nbctl --ecmp-symmetric-reply lr-route-add lr1 2001:db8:5000::/48 2001:db8:1000::4 lr1p1 ovn-nbctl lr-route-list lr1 ~~~~~~~~~~~~~~~~~ As below is the output ~~~~~~~~~~~~ + systemctl start ovn-northd + ovn-nbctl set-connection ptcp:6641 + ovn-sbctl set-connection ptcp:6642 + systemctl start openvswitch + ovs-vsctl set open . external_ids:system-id=hv0 external_ids:ovn-remote=tcp:1.1.173.25:6642 external_ids:ovn-encap-type=geneve external_ids:ovn-encap-ip=1.1.173.25 + systemctl start ovn-controller + ovn-nbctl lr-add lr1 + ovn-nbctl lrp-add lr1 lr1p1 00:00:00:01:0f:01 1.1.1.1/24 2001:db8:1000::1/64 + ovn-nbctl lr-route-add lr1 2001:db8:2000::/48 2001:db8:1000::2 lr1p1 ++ ovn-nbctl create bfd logical_port=lr1p1 'dst_ip="2001:db8:1000::3"' min_tx=250 min_rx=250 detect_mult=10 + bfd_uuid=786f3e99-0054-4e53-83d8-4f11e61c934d + ovn-nbctl --bfd=786f3e99-0054-4e53-83d8-4f11e61c934d lr-route-add lr1 2001:db8:3000::/48 2001:db8:1000::3 lr1p1 + ovn-nbctl --ecmp lr-route-add lr1 2001:db8:4000::/48 2001:db8:1000::4 lr1p1 + ovn-nbctl --ecmp lr-route-add lr1 2001:db8:4000::/48 2001:db8:1000::5 lr1p1 + ovn-nbctl --ecmp-symmetric-reply lr-route-add lr1 2001:db8:5000::/48 2001:db8:1000::5 lr1p1 + ovn-nbctl --ecmp-symmetric-reply lr-route-add lr1 2001:db8:5000::/48 2001:db8:1000::4 lr1p1 + ovn-nbctl lr-route-list lr1 IPv6 Routes 2001:db8:2000::/48 2001:db8:1000::2 dst-ip lr1p1 2001:db8:3000::/48 2001:db8:1000::3 dst-ip lr1p1 bfd 2001:db8:4000::/48 2001:db8:1000::4 dst-ip lr1p1 ecmp 2001:db8:4000::/48 2001:db8:1000::5 dst-ip lr1p1 ecmp 2001:db8:5000::/48 2001:db8:1000::4 dst-ip lr1p1 ecmp ecmp-symmetric-reply 2001:db8:5000::/48 2001:db8:1000::5 dst-ip lr1p1 ecmp ecmp-symmetric-reply
add function test for this feature:(use the script and procedure in bz1847570) topo: vm1-----network1----router1-------public------external-----pc | vm2 script: ovn-nbctl ls-add network1 ovn-nbctl lsp-add network1 vm1 ovn-nbctl lsp-set-addresses vm1 "40:44:00:00:00:01 192.168.1.11 2000::11" ovn-nbctl lsp-add network1 vm2 ovn-nbctl lsp-set-addresses vm2 "40:44:00:00:00:02 192.168.1.12 2000::12" ovn-nbctl ls-add public ovn-nbctl lsp-add public public-localnet ovn-nbctl lsp-set-type public-localnet localnet ovn-nbctl lsp-set-addresses public-localnet unknown ovn-nbctl lsp-set-options public-localnet network_name=external ovs-vsctl add-br br-labNet ovs-vsctl set Open_vSwitch . external-ids:ovn-bridge-mappings=external:br-labNet ovs-vsctl add-port br-labNet ha_veth0 ip link set br-labNet up ovn-nbctl lr-add router1 ovn-nbctl lrp-add router1 router1-net1 40:44:00:00:00:04 192.168.1.1/24 2000::1/64 ovn-nbctl lsp-add network1 net1-router1 ovn-nbctl lsp-set-type net1-router1 router ovn-nbctl lsp-set-addresses net1-router1 router ovn-nbctl lsp-set-options net1-router1 router-port=router1-net1 ovn-nbctl lrp-add router1 router1-net2 40:44:00:00:00:05 192.168.2.1/24 2001::1/64 ovn-nbctl lsp-add network2 net2-router1 ovn-nbctl lsp-set-type net2-router1 router ovn-nbctl lsp-set-addresses net2-router1 router ovn-nbctl lsp-set-options net2-router1 router-port=router1-net2 ovn-nbctl lrp-add router1 router1-public 40:44:00:00:00:06 172.16.1.1/24 2002::1/64 ovn-nbctl lsp-add public public-router1 ovn-nbctl lsp-set-type public-router1 router ovn-nbctl lsp-set-addresses public-router1 router ovn-nbctl lsp-set-options public-router1 router-port=router1-public ovn-nbctl --id=@gc0 create Gateway_Chassis name=public-gw1 chassis_name=hv1 priority=20 -- --id=@gc1 create Gateway_Chassis name=public-gw2 chassis_name=hv0 priority=10 -- set Logical_Router_Port router1-public 'gateway_chassis=[@gc0,@gc1]' ovs-vsctl add-port br-int vm1 -- set interface vm1 type=internal ip netns add vm1 ip link set vm1 netns vm1 ip netns exec vm1 ip link set lo up ip netns exec vm1 ip link set vm1 up ip netns exec vm1 ip link set vm1 address 40:44:00:00:00:01 ip netns exec vm1 ip addr add 192.168.1.11/24 dev vm1 ip netns exec vm1 ip -6 addr add 2000::11/64 dev vm1 ip netns exec vm1 ip route add default via 192.168.1.1 dev vm1 ip netns exec vm1 ip -6 route add default via 2000:: dev vm1 ovs-vsctl set Interface vm1 external_ids:iface-id=vm1 ovs-vsctl add-port br-int vm2 -- set interface vm2 type=internal ip netns add vm2 ip link set vm2 netns vm2 ip netns exec vm2 ip link set lo up ip netns exec vm2 ip link set vm2 up ip netns exec vm2 ip link set vm2 address 40:44:00:00:00:02 ip netns exec vm2 ip addr add 192.168.1.12/24 dev vm2 ip netns exec vm2 ip -6 addr add 192.168.1.12/24 dev vm2 ip netns exec vm2 ip route add default via 192.168.1.1 dev vm2 ip netns exec vm2 ip -6 route add default via 2000:: dev vm2 ovs-vsctl set Interface vm2 external_ids:iface-id=vm2 ip netns add external ip link add ha_veth0 type veth peer name ha_veth0_p netns external ip netns exec external ip link set lo up ip netns exec external ip link set ha_veth0_p up ip link set ha_veth0 up ip netns exec external ip addr add 172.16.1.50/24 dev ha_veth0_p ip netns exec external ip addr add 172.16.1.51/24 dev ha_veth0_p ip netns exec external ip -6 addr add 2002::50/64 dev ha_veth0_p ip netns exec external ip -6 addr add 2002::51/64 dev ha_veth0_p ip link add veth0 type veth peer name veth0_peer ip link set up dev veth0 ip link set veth0_peer netns external ip netns exec external ip link set up dev veth0_peer ip netns exec external ip addr add 192.168.100.1/24 dev veth0_peer ip netns exec external ip -6 addr add 2003::1/24 dev veth0_pee ip addr add 192.168.100.2/24 dev veth0 ip -6 addr add 2003::2/24 dev veth0 ip route add 172.16.1.0/24 via 192.168.100.1 ip -6 route add 2002::/64 via 2003::1 ip netns exec external ip route add default via 172.16.1.1 ip netns exec external ip -6 route add default via 2002::1 ip netns exec external sysctl net.ipv4.ip_forward=1 ip netns exec external sysctl net.ipv6.ip_forward=1 uuid=$(ovn-nbctl create bfd logical_port=router1-public dst_ip=172.16.1.50 min_tx=250 min_rx=250 detect_mult=10) uuid1=$(ovn-nbctl create bfd logical_port=router1-public dst_ip="2002\:\:50" min_tx=250 min_rx=250 detect_mult=10) uuid2=$(ovn-nbctl create bfd logical_port=router1-public dst_ip="2002\:\:51" min_tx=250 min_rx=250 detect_mult=10) uuid3=$(ovn-nbctl create bfd logical_port=router1-public dst_ip=172.16.1.51 min_tx=250 min_rx=250 detect_mult=10) ovn-nbctl --ecmp lr-route-add router1 192.168.100.0/24 172.16.1.50 ovn-nbctl --bfd=$uuid3 --ecmp lr-route-add router1 192.168.100.0/24 172.16.1.51 ovn-nbctl --ecmp lr-route-add router1 2003::/24 2002::50 ovn-nbctl --bfd=$uuid2 --ecmp lr-route-add router1 2003::/24 2002::51 uid=$(ovn-nbctl --bare --columns _uuid find logical_router_static_route nexthop=172.16.1.50) uid1=$(ovn-nbctl --bare --columns _uuid find logical_router_static_route nexthop="2002\:\:50") ovn-nbctl set logical_router_static_route $route_uuid bfd=$uuid ovn-nbctl set logical_router_static_route $route_uuid1 bfd=$uuid1 ovn-nbctl --wait=hv sync ip netns exec external bfdd-beacon --listen=:: ip netns exec external bfdd-control allow 2002::1 now check the bfd status: # ovn-nbctl list bfd _uuid : 5e0ce2bc-d556-4e35-b860-7b44e7c61f47 detect_mult : 10 dst_ip : "172.16.1.51" external_ids : {} logical_port : router1-public min_rx : 250 min_tx : 250 options : {} status : down _uuid : 5df64215-4ef1-4e08-b2b9-82b9ec5b987c detect_mult : 10 dst_ip : "2002::51" external_ids : {} logical_port : router1-public min_rx : 250 min_tx : 250 options : {} status : up _uuid : c2b026d3-3f86-4fea-841d-a2361f0651f4 detect_mult : 10 dst_ip : "172.16.1.50" external_ids : {} logical_port : router1-public min_rx : 250 min_tx : 250 options : {} status : down _uuid : 9ac508df-cca7-4fd9-8638-30388236293f detect_mult : 10 dst_ip : "2002::50" external_ids : {} logical_port : router1-public min_rx : 250 min_tx : 250 options : {} status : up now ping pass # ip netns exec vm1 ping6 2003::1 PING 2003::1(2003::1) 56 data bytes 64 bytes from 2003::1: icmp_seq=1 ttl=62 time=1.24 ms ^C --- 2003::1 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 1024ms # ovn-nbctl list bfd _uuid : 5e0ce2bc-d556-4e35-b860-7b44e7c61f47 detect_mult : 10 dst_ip : "172.16.1.51" external_ids : {} logical_port : router1-public min_rx : 250 min_tx : 250 options : {} status : down _uuid : 5df64215-4ef1-4e08-b2b9-82b9ec5b987c detect_mult : 10 dst_ip : "2002::51" external_ids : {} logical_port : router1-public min_rx : 250 min_tx : 250 options : {} status : down _uuid : c2b026d3-3f86-4fea-841d-a2361f0651f4 detect_mult : 10 dst_ip : "172.16.1.50" external_ids : {} logical_port : router1-public min_rx : 250 min_tx : 250 options : {} status : down _uuid : 9ac508df-cca7-4fd9-8638-30388236293f detect_mult : 10 dst_ip : "2002::50" external_ids : {} logical_port : router1-public min_rx : 250 min_tx : 250 options : {} status : down stop the bfd(but the link is ok),ping fail # ip netns exec vm1 ping6 2003::1 PING 2003::1(2003::1) 56 data bytes ^C --- 2003::1 ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 2030ms
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (ovn2.13 bug fix and enhancement update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHBA-2021:0836