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Bug
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Resolution: Not a Bug
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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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rhel-sst-network-fastdatapath-ovn
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ssg_networking
Problem Description: Clearly explain the issue.
when a lb is added to lr through template, the arp reply is not sent for the lb vip
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).
ovn24.09-24.09.1-10.el9fdp.x86_64
ovn24.09-central-24.09.1-10.el9fdp.x86_64
ovn24.09-host-24.09.1-10.el9fdp.x86_64
openvswitch3.3-3.3.0-58.el9fdp.x86_64
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.
100%
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 systemctl restart ovn-controllerovs-vsctl add-br br-ext ovs-vsctl set Open_vSwitch . external-ids:ovn-bridge-mappings=phynet:br-extovn-nbctl lr-add lr1 ovn-nbctl lrp-add lr1 lr1-ls1 00:00:01:ff:02:03 192.168.1.254/24ovn-nbctl ls-add ls1 ovn-nbctl lsp-add ls1 ls1p1 ovn-nbctl lsp-set-addresses ls1p1 "00:00:01:01:01:01 192.168.1.1"ovn-nbctl lsp-add ls1 ls1-lr1 ovn-nbctl lsp-set-type ls1-lr1 router ovn-nbctl lsp-set-options ls1-lr1 router-port=lr1-ls1 ovn-nbctl lsp-set-addresses ls1-lr1 routerovn-nbctl ls-add pub ovn-nbctl lrp-add lr1 lr1-pub 00:00:01:ff:01:03 172.16.1.1/24ovn-nbctl lsp-add pub pub-lr1 ovn-nbctl lsp-set-type pub-lr1 router ovn-nbctl lsp-set-addresses pub-lr1 router ovn-nbctl lsp-set-options pub-lr1 router-port=lr1-pubovn-nbctl lsp-add pub pub-ln ovn-nbctl lsp-set-type pub-ln localnet ovn-nbctl lsp-set-addresses pub-ln unknown ovn-nbctl lsp-set-options pub-ln network_name=phynet ovn-nbctl set logical_router lr1 options:chassis=hv1ovn-nbctl create chassis_template_var chassis=hv1 \ variables="{lbvip=172.16.1.100,lbport=12010,lbback=192.168.1.1}" ovn-nbctl --template lb-add lb1 "^lbvip:^lbport" "^lbback:^lbport" tcp ipv4 ovn-nbctl lr-lb-add lr1 lb1ovs-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 00:00:01:01:01:01 ip netns exec ls1p1 ip link set ls1p1 up ip netns exec ls1p1 ip addr add 192.168.1.1/24 dev ls1p1 ip netns exec ls1p1 ip route add default via 192.168.1.254 ip netns exec ls1p1 ncat -k -l 12010 &ovs-vsctl add-port br-ext ext1 -- set interface ext1 type=internal ip netns add ext1 ip link set ext1 netns ext1 ip netns exec ext1 ip link set ext1 up ip netns exec ext1 ip addr add 172.16.1.11/24 dev ext1 ovn-nbctl --wait=hv syncip netns exec ext1 ping 172.16.1.1 -c 1 ip netns exec ext1 ncat 172.16.1.100 12010 <<< h ip netns exec ext1 ip neigh ip netns exec ext1 ip neigh flush all ip netns exec ext1 ip neigh add 172.16.1.100 dev ext1 lladdr 00:00:01:ff:01:03ip netns exec ext1 ncat 172.16.1.100 12010 <<< h
Expected Behavior: Describe what should happen under normal circumstances.
ncat to lb should pass
Observed Behavior: Explain what actually happens.
ncat to lb failed, arp table is not installed for the lb vip
Troubleshooting Actions: Outline the steps taken to diagnose or resolve the issue so far.
Logs: If you collected logs please provide them (e.g. sos report, /var/log/openvswitch/* , testpmd console)
+ ip netns exec ls1p1 ncat -k -l 12010 + ip netns add ext1 + ip link set ext1 netns ext1 + ip netns exec ext1 ip link set ext1 up + ip netns exec ext1 ip addr add 172.16.1.11/24 dev ext1 + ovn-nbctl --wait=hv sync + ip netns exec ext1 ping 172.16.1.1 -c 1 PING 172.16.1.1 (172.16.1.1) 56(84) bytes of data. 64 bytes from 172.16.1.1: icmp_seq=1 ttl=254 time=5.79 ms --- 172.16.1.1 ping statistics --- 1 packets transmitted, 1 received, 0% packet loss, time 0ms rtt min/avg/max/mdev = 5.792/5.792/5.792/0.000 ms + ip netns exec ext1 ncat 172.16.1.100 12010 Ncat: TIMEOUT. <=== ncat failed + ip netns exec ext1 ip neigh 172.16.1.1 dev ext1 lladdr 00:00:01:ff:01:03 REACHABLE 172.16.1.100 dev ext1 INCOMPLETE + ip netns exec ext1 ip neigh flush all + ip netns exec ext1 ip neigh add 172.16.1.100 dev ext1 lladdr 00:00:01:ff:01:03 + ip netns exec ext1 ncat 172.16.1.100 12010 h <== ncat passed after neigh is added manually
