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Bug
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Resolution: Won't Do
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Undefined
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None
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None
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None
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False
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False
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rhel-9
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None
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rhel-net-ovn
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ssg_networking
Problem Description: Clearly explain the issue.
if dynamic-routing-vxlan-ifname is not set for ipv6, even when ovn-evpn-local-ip is set for ipv6, ipv6 won't be learned and advertised
Impact Assessment: Describe the severity and impact (e.g., network down,availability of a workaround, etc.).
Software Versions: Specify the exact versions in use (e.g.,openvswitch3.1-3.1.0-147.el8fdp).
ovn26.03-26.03.0-alpha.317
Issue Type: Indicate whether this is a new issue or a regression (if a regression, state the last known working version).
Reproducibility: Confirm if the issue can be reproduced consistently. If not, describe how often it occurs.
Always
Reproduction Steps: Provide detailed steps or scripts to replicate the issue.
systemctl start openvswitch systemctl start ovn-northd ovn-nbctl set-connection ptcp:6641 ovn-sbctl set-connection ptcp:6642 ovs-vsctl set open . external_ids:system-id=hv1 external_ids:ovn-remote=tcp:127.0.0.1:6642 external_ids:ovn-encap-type=geneve external_ids:ovn-encap-ip=127.0.0.1 external-ids:ovn-evpn-local-ip=101-20.0.86.26,101-20:0:86::26 external-ids:ovn-evpn-vxlan-ports=4789 systemctl restart ovn-controller ovs-vsctl --if-exists del-br br-nat ovs-vsctl add-br br-nat ovs-vsctl set open . external_ids:ovn-bridge-mappings=phy:br-nat ip link set br-nat up ovn-nbctl ls-add public ovn-nbctl -- lsp-add public pub-ln\ -- lsp-set-type pub-ln localnet\ -- lsp-set-addresses pub-ln unknown\ -- lsp-set-options pub-ln network_name=phy ip link del vrf-101 ip link add vrf-101 type vrf table 101 ip link set vrf-101 up ovn-nbctl lsp-add public ls1p1\ -- lsp-set-addresses ls1p1 "00:00:00:00:01:01 20.0.0.1 2002::1"\ -- lsp-add public ls1p2\ -- lsp-set-addresses ls1p2 "00:00:00:00:01:02 20.0.0.2 2002::2" ip link add br-101 type bridge ip link set br-101 master vrf-101 addrgenmode none ip link set br-101 up ip link add vxlan-101 type vxlan id 101 dstport 60011 local 20.0.86.26 nolearning ip link add vxlan-v6-101 type vxlan id 101 dstport 60011 local 20:0:86::26 nolearning ip link set dev vxlan-101 up ip link set vxlan-101 master br-101 ip link set vxlan-v6-101 up ip link set vxlan-v6-101 master br-101 ip link add name lo-101 type dummy ip link set lo-101 master br-101 ip link set lo-101 up ovn-nbctl set logical_switch public other_config:dynamic-routing-vni=101\ -- set logical_switch public other_config:dynamic-routing-redistribute=fdb bridge fdb append 00:00:00:00:00:00 dev vxlan-101 dst 20.0.86.25 static permanent bridge fdb add 00:00:ff:ff:01:02 dev vxlan-101 dst 20.0.86.25 static extern_learn bridge fdb append 00:00:00:00:00:00 dev vxlan-v6-101 dst 20:0:86::25 static permanent bridge fdb add 00:00:ff:ff:55:02 dev vxlan-v6-101 dst 20:0:86::25 static extern_learn ip neigh add dev br-101 20.0.0.150 lladdr f0:00:0f:16:10:50 nud noarp extern_learn ip -6 neigh add dev br-101 20:0:86::150 lladdr f0:00:0f:16:55:50 nud noarp extern_learn ovs-vsctl add-port br-int ls1p1 -- set interface ls1p1 type=internal external_ids:iface-id=ls1p1 ip netns add ls1p1 ip link set ls1p1 netns ls1p1 ip netns exec ls1p1 ip link set ls1p1 address 00:00:00:00:01:01 ip netns exec ls1p1 ip link set ls1p1 up ip netns exec ls1p1 ip addr add 20.0.0.1/24 dev ls1p1 ip netns exec ls1p1 ip addr add 2002::1/64 dev ls1p1 sleep 5 ovn-appctl evpn/vtep-fdb-list ovn-appctl evpn/vtep-arp-list ovn-appctl evpn/remote-vtep-list tail -n 10 /var/log/ovn/ovn-controller.log ip neigh show dev br-101 nud noarp
Expected Behavior: Describe what should happen under normal circumstances.
fdb for ipv6 is learned and advertised
Observed Behavior: Explain what actually happens.
[root@wsfd-advnetlab20 FDP-2767]# rpm -qa | grep -E "openvswitch|ovn" openvswitch-selinux-extra-policy-1.0-39.el9fdp.noarch openvswitch3.5-3.5.2-63.el9fdp.x86_64 python3-openvswitch3.5-3.5.2-63.el9fdp.x86_64 ovn26.03-26.03.0-alpha.317.el9fdp.x86_64 ovn26.03-central-26.03.0-alpha.317.el9fdp.x86_64 ovn26.03-host-26.03.0-alpha.317.el9fdp.x86_64 + sleep 5 + ovn-appctl evpn/vtep-fdb-list UUID: 520c0bd5-4864-40cb-a18c-79f4d835f4f2, MAC: 00:00:ff:ff:01:02, vni: 101, binding_key: 0x80000001, dp_key: 1 + ovn-appctl evpn/vtep-arp-list UUID: d926fbbe-f88e-4559-9725-650d36e14516, VNI: 101, MAC: f0:00:0f:16:55:50, IP: 20:0:86::150, dp_key: 1 UUID: bbc74464-f8c4-496d-9cba-1d5f655d83a2, VNI: 101, MAC: f0:00:0f:16:10:50, IP: 20.0.0.150, dp_key: 1 + ovn-appctl evpn/remote-vtep-list IP: 20.0.86.25, port: 4789, vni: 101 + tail -n 10 /var/log/ovn/ovn-controller.log 2026-02-05T01:10:29.484Z|00041|main|INFO|OVS feature set changed, force recompute. 2026-02-05T01:10:29.488Z|00042|host_if_monitor|INFO|Enabling host interface monitor 2026-02-05T01:10:29.494Z|00043|neighbor_table_notify|INFO|Adding neighbor table watchers. 2026-02-05T01:10:29.494Z|00044|evpn_binding|WARN|Couldn't find EVPN tunnel for 4789 destination port. 2026-02-05T01:10:29.494Z|00045|evpn_fdb|WARN|Couldn't find EVPN binding for 00:00:ff:ff:01:02 MAC address. 2026-02-05T01:10:29.495Z|00046|if_status|INFO|Not updating pb chassis for ls1p1 now as sb is readonly 2026-02-05T01:10:29.495Z|00047|binding|INFO|Claiming lport ls1p1 for this chassis. 2026-02-05T01:10:29.495Z|00048|binding|INFO|ls1p1: Claiming 00:00:00:00:01:01 20.0.0.1 2002::1 2026-02-05T01:10:29.532Z|00049|binding|INFO|Setting lport ls1p1 ovn-installed in OVS 2026-02-05T01:10:29.532Z|00050|binding|INFO|Setting lport ls1p1 up in Southbound + ip neigh show dev br-101 nud noarp 20.0.0.150 lladdr f0:00:0f:16:10:50 extern_learn NOARP 20:0:86::150 lladdr f0:00:0f:16:55:50 extern_learn NOARP
Troubleshooting Actions: Outline the steps taken to diagnose or resolve the issue so far.
