Description of problem: ipv6_prefix doesn't update even configuration on server changed Version-Release number of selected component (if applicable): [root@dell-per740-12 bz1826623]# rpm -qa | grep -E "ovn-2021|openvswitch2.13" python3-openvswitch2.13-2.13.0-117.el8fdp.x86_64 ovn-2021-21.06.0-12.el8fdp.x86_64 openvswitch2.13-2.13.0-117.el8fdp.x86_64 ovn-2021-central-21.06.0-12.el8fdp.x86_64 ovn-2021-host-21.06.0-12.el8fdp.x86_64 How reproducible: Always Steps to Reproduce: systemctl start openvswitch [33/1841] 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:20.0.39.25:6642 external_ids:ovn-encap-type=geneve external_ids:ovn-encap-ip=20.0.39.25 systemctl restart ovn-controller ovn-nbctl ls-add ls1 ovn-nbctl lr-add lr1 ovn-nbctl lrp-add lr1 lr1-ls1 00:00:00:00:00:01 172.16.1.1/24 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 router ovn-nbctl lsp-add ls1 lnls1 ovn-nbctl lsp-set-options lnls1 network_name=provider ovn-nbctl lsp-set-type lnls1 localnet ovn-nbctl lsp-set-addresses lnls1 unknown ovn-nbctl set logical_router lr1 options:chassis=hv1 ovn-nbctl lrp-add lr1 lr1-ls2 00:00:00:00:00:02 172.16.1.2/24 ovn-nbctl lrp-add lr1 lr1-ls3 00:00:00:00:00:03 172.16.1.3/24 ovn-nbctl ls-add ls2 ovn-nbctl lsp-add ls2 ls2-lr1 ovn-nbctl lsp-set-type ls2-lr1 router ovn-nbctl lsp-set-options ls2-lr1 router-port=lr1-ls2 ovn-nbctl lsp-set-addresses ls2-lr1 router ovn-nbctl ls-add ls3 ovn-nbctl lsp-add ls3 ls3-lr1 ovn-nbctl lsp-set-type ls3-lr1 router ovn-nbctl lsp-set-options ls3-lr1 router-port=lr1-ls3 ovn-nbctl lsp-set-addresses ls3-lr1 router ovs-vsctl add-br br-test ip link set br-test up ovs-vsctl set open . external-ids:ovn-bridge-mappings=provider:br-test ip netns add server0 ip link add veth0_s0 netns server0 type veth peer name veth0_s0_p ip netns exec server0 ip link set veth0_s0 up ip netns exec server0 ip addr add 2001:1db8:3333::2/64 dev veth0_s0 ovs-vsctl add-port br-test veth0_s0_p ip link set veth0_s0_p up ip addr add 2001:1db8:3333::1/64 dev br-test ovn-nbctl set logical_router_port lr1-ls1 options:prefix_delegation=true #ovn-nbctl set logical_router_port lr1-ls1 options:prefix=true ovn-nbctl set logical_router_port lr1-ls2 options:prefix=true #ovn-nbctl set logical_router_port lr1-ls3 options:prefix=true cat > dhcpd6.conf << EOF option dhcp-rebinding-time 15; option dhcp-renewal-time 10; option dhcp6.unicast fe80::f455:8ff:fe20:6d66; subnet6 2001:1db8:3333::/64 { # Some /64 prefixes available for Prefix Delegation (RFC 3633) prefix6 2001:1db8:3333:100:: 2001:1db8:3333:111:: /80; } EOF ip netns exec server0 dhcpd -6 -cf ./dhcpd6.conf veth0_s0 sleep 2 ovn-nbctl list logical_router_port lr1-ls2 ip netns exec server0 pkill dhcpd ovn-nbctl set logical_router_port lr1-ls1 options:prefix_delegation=false ovn-nbctl set logical_router_port lr1-ls2 options:prefix=false ovn-nbctl clear logical_router_port lr1-ls2 ipv6_prefix ovn-nbctl list logical_router_port lr1-ls2 sleep 5m cat > dhcpd6-2.conf << EOF option dhcp-rebinding-time 15; option dhcp-renewal-time 10; option dhcp6.unicast fe80::f455:8ff:fe20:6d66; subnet6 2001:1db8:3333::/64 { # Some /64 prefixes available for Prefix Delegation (RFC 3633) prefix6 2001:1db8:3333:200:: 2001:1db8:3333:211:: /80; } EOF ip netns exec server0 dhcpd -6 -cf ./dhcpd6-2.conf veth0_s0 sleep 2 ovn-nbctl set logical_router_port lr1-ls1 options:prefix_delegation=true ovn-nbctl set logical_router_port lr1-ls2 options:prefix=true sleep 2 ovn-nbctl list logical_router_port lr1-ls2 Actual results: ipv6_prefix for ls1-lr2 doesn't update when dhcpd.conf changed Expected results: ipv6_prefix update to the new configuration Additional info: + ovn-nbctl list logical_router_port lr1-ls2 _uuid : f01adddc-7cca-4814-a2ae-befe7e903c9e enabled : [] external_ids : {} gateway_chassis : [] ha_chassis_group : [] ipv6_prefix : ["2001:1db8:3333:111::/80"] ipv6_ra_configs : {} mac : "00:00:00:00:00:02" name : lr1-ls2 networks : ["172.16.1.2/24"] options : {prefix="true"} peer : [] + ip netns exec server0 pkill dhcpd + ovn-nbctl set logical_router_port lr1-ls1 options:prefix_delegation=false + ovn-nbctl set logical_router_port lr1-ls2 options:prefix=false + ovn-nbctl clear logical_router_port lr1-ls2 ipv6_prefix + ovn-nbctl list logical_router_port lr1-ls2 _uuid : f01adddc-7cca-4814-a2ae-befe7e903c9e enabled : [] external_ids : {} gateway_chassis : [] ha_chassis_group : [] ipv6_prefix : [] ipv6_ra_configs : {} mac : "00:00:00:00:00:02" name : lr1-ls2 networks : ["172.16.1.2/24"] options : {prefix="false"} peer : [] + sleep 5m + cat + ip netns exec server0 dhcpd -6 -cf ./dhcpd6-2.conf veth0_s0 Internet Systems Consortium DHCP Server 4.3.6 Copyright 2004-2017 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ ldap_gssapi_principal is not set,GSSAPI Authentication for LDAP will not be used Not searching LDAP since ldap-server, ldap-port and ldap-base-dn were not specified in the config file Config file: ./dhcpd6-2.conf Database file: /var/lib/dhcpd/dhcpd6.leases PID file: /var/run/dhcpd6.pid No pool found for prefix 2001:1db8:3333:111::/80 Wrote 0 NA, 0 TA, 0 PD leases to lease file. Bound to *:547 Listening on Socket/5/veth0_s0/2001:1db8:3333::/64 Sending on Socket/5/veth0_s0/2001:1db8:3333::/64 + sleep 2 + ovn-nbctl set logical_router_port lr1-ls1 options:prefix_delegation=true + ovn-nbctl set logical_router_port lr1-ls2 options:prefix=true + sleep 2 + ovn-nbctl list logical_router_port lr1-ls2 _uuid : f01adddc-7cca-4814-a2ae-befe7e903c9e enabled : [] external_ids : {} gateway_chassis : [] ha_chassis_group : [] ipv6_prefix : ["2001:1db8:3333:111::/80"] <=== ipv6_prefix is still the old value. <=== should update to "prefix6 2001:1db8:3333:200:: 2001:1db8:3333:211:: /80" ipv6_ra_configs : {} mac : "00:00:00:00:00:02" name : lr1-ls2 networks : ["172.16.1.2/24"] options : {prefix="true"} peer : []
upstream fix: http://patchwork.ozlabs.org/project/ovn/cover/cover.1627494892.git.lorenzo.bianconi@redhat.com/
reproducer passed on ovn2.13-20.12.0-178.el8: [root@wsfd-advnetlab16 bz1983862]# rpm -qa | grep -E "openvswitch2.15|ovn2.13" python3-openvswitch2.15-2.15.0-38.el8fdp.x86_64 ovn2.13-20.12.0-178.el8fdp.x86_64 ovn2.13-host-20.12.0-178.el8fdp.x86_64 openvswitch2.15-2.15.0-38.el8fdp.x86_64 ovn2.13-central-20.12.0-178.el8fdp.x86_64 + ovn-nbctl list logical_router_port lr1-ls2 _uuid : 01889a43-6ce7-486e-ab12-afcd94937aab enabled : [] external_ids : {} gateway_chassis : [] ha_chassis_group : [] ipv6_prefix : [] ipv6_ra_configs : {} mac : "00:00:00:00:00:02" name : lr1-ls2 networks : ["172.16.1.2/24"] options : {prefix="false"} peer : [] + sleep 1m + cat + ip netns exec server0 dhcpd -6 -cf ./dhcpd6-2.conf veth0_s0 Internet Systems Consortium DHCP Server 4.3.6 Copyright 2004-2017 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ ldap_gssapi_principal is not set,GSSAPI Authentication for LDAP will not be used Not searching LDAP since ldap-server, ldap-port and ldap-base-dn were not specified in the config file Config file: ./dhcpd6-2.conf Database file: /var/lib/dhcpd/dhcpd6.leases PID file: /var/run/dhcpd6.pid No pool found for prefix 2001:1db8:3333:111::/80 Wrote 0 NA, 0 TA, 0 PD leases to lease file. Bound to *:547 Listening on Socket/5/veth0_s0/2001:1db8:3333::/64 Sending on Socket/5/veth0_s0/2001:1db8:3333::/64 + sleep 2 + ovn-nbctl set logical_router_port lr1-ls1 options:prefix_delegation=true + ovn-nbctl set logical_router_port lr1-ls2 options:prefix=true + sleep 2 + ovn-nbctl list logical_router_port lr1-ls2 _uuid : 01889a43-6ce7-486e-ab12-afcd94937aab enabled : [] external_ids : {} gateway_chassis : [] ha_chassis_group : [] ipv6_prefix : ["2001:1db8:3333:211::/80"] <=== ipv6_prefix updated ipv6_ra_configs : {} mac : "00:00:00:00:00:02" name : lr1-ls2 networks : ["172.16.1.2/24"] options : {prefix="true"} peer : []
also verified on ovn2.13-20.12.0-178.el7: + sleep 2 + ovn-nbctl set logical_router_port lr1-ls1 options:prefix_delegation=true + ovn-nbctl set logical_router_port lr1-ls2 options:prefix=true + sleep 2 + ovn-nbctl list logical_router_port lr1-ls2 _uuid : c6a80e8b-97d6-4143-a91e-d2eea0d65e9e enabled : [] external_ids : {} gateway_chassis : [] ha_chassis_group : [] ipv6_prefix : ["2001:1db8:3333:211::/80"] ipv6_ra_configs : {} mac : "00:00:00:00:00:02" name : lr1-ls2 networks : ["172.16.1.2/24"] options : {prefix="true"} peer : [] [root@wsfd-advnetlab18 bz1983862]# rpm -qa | grep -E "openvswitch2.13|ovn2.13" openvswitch2.13-2.13.0-102.el7fdp.x86_64 ovn2.13-20.12.0-178.el7fdp.x86_64 ovn2.13-central-20.12.0-178.el7fdp.x86_64 ovn2.13-host-20.12.0-178.el7fdp.x86_64
also verified on ovn-2021-21.06.0-29.el8: + ovn-nbctl set logical_router_port lr1-ls1 options:prefix_delegation=true + ovn-nbctl set logical_router_port lr1-ls2 options:prefix=true + sleep 2 + ovn-nbctl list logical_router_port lr1-ls2 _uuid : 815ea976-4c40-4069-ba91-06339debc0b6 enabled : [] external_ids : {} gateway_chassis : [] ha_chassis_group : [] ipv6_prefix : ["2001:1db8:3333:211::/80"] ipv6_ra_configs : {} mac : "00:00:00:00:00:02" name : lr1-ls2 networks : ["172.16.1.2/24"] options : {prefix="true"} peer : [] [root@wsfd-advnetlab16 bz1983862]# rpm -qa | grep -E "openvswitch2.15|ovn-2021" ovn-2021-21.06.0-29.el8fdp.x86_64 python3-openvswitch2.15-2.15.0-38.el8fdp.x86_64 ovn-2021-central-21.06.0-29.el8fdp.x86_64 openvswitch2.15-2.15.0-38.el8fdp.x86_64 ovn-2021-host-21.06.0-29.el8fdp.x86_64
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-2021:3717