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Type: Epic
Resolution: Unresolved
Priority: Major
Fix Version/s: None
Affects Version/s: None
Component/s: OVN
Labels:
None

Epic Name:
set dynamic-routing-redistribute as fdb,ip for logical switch doesn't work
Story Points:
5
Blocked:
False
Ready:
False
Acceptance Criteria:

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Please mark each item below with ( / ) if completed or ( x ) if incomplete:

( ) The acceptance criteria defined below are met.

Given an OVN logical switch configured with dynamic-routing-redistribute set to "fdb,ip",
When EVPN routes are redistributed to the VTEP bridge,
Then both FDB entries and IP neighbor entries appear in the kernel neighbor table.

( ) The epics work is available in a downstream build (nightly/Async or other)

( ) All cards under the epic have been moved to Done

Show
Please mark each item below with ( / ) if completed or ( x ) if incomplete: ( ) The acceptance criteria defined below are met. Given an OVN logical switch configured with dynamic-routing-redistribute set to "fdb,ip", When EVPN routes are redistributed to the VTEP bridge, Then both FDB entries and IP neighbor entries appear in the kernel neighbor table. ( ) The epics work is available in a downstream build (nightly/Async or other) ( ) All cards under the epic have been moved to Done
Epic Status:
In Progress
OS:
rhel-9
AssignedTeam:
rhel-net-ovn
Hierarchy Progress Bar:

67% To Do, 0% In Progress, 33% Done
Sub-System Group:

ssg_networking

SFDC Cases Links:
SFDC Cases Open:
SFDC Cases Counter:

Intelligence Requested:
Market:

This epic tracks all the effort needed to deliver the solution related to the bug described below.

Problem Description: Clearly explain the issue.

set dynamic-routing-redistribute as fdb,ip for logical switch, then neither ip nor fdb would be advertised

Impact Assessment: Describe the severity and impact (e.g., network down,availability of a workaround, etc.).

network down

Software Versions: Specify the exact versions in use (e.g.,openvswitch3.1-3.1.0-147.el8fdp).

ovn26.03-26.03.0-alpha.134.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.

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=20.0.86.25 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
#ovs-vsctl add-port br-nat ens1f1np1
#ip link set ens1f1np1 up
ovn-nbctl lr-add lr-tenant\
	-- lrp-add lr-tenant lr-tenant-public 00:00:00:00:00:42 20.0.0.42/8 2002::42/64
ovn-nbctl ls-add public\
	-- lr-add lr-bgp\
	-- set logical_router lr-bgp options:chassis=hv1
ovn-nbctl\
	-- lrp-add lr-bgp lr-bgp-pub 00:00:00:00:00:03 20.0.0.2/8 2002::2/64\
	-- lsp-add public pub-lr-bgp\
	-- set logical_switch_port pub-lr-bgp type=router\
	options:router-port=lr-bgp-pub\
	-- lsp-set-addresses pub-lr-bgp router\
	-- lsp-add public pub-lr-tenant\
	-- set logical_switch_port pub-lr-tenant type=router\
	options:router-port=lr-tenant-public\
	-- 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 vrf101
ip link add vrf101 type vrf table 101
ip link set vrf101 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"
ovn-nbctl lr-add lr2\
	-- lrp-add lr2 lr2-pub 00:00:00:00:00:52 20.2.0.52/8 2202::52/64
ovn-nbctl ls-add public2\
	-- lsp-add public2 pub2-lr2\
	-- set logical_switch_port pub2-lr2 type=router\
	options:router-port=lr2-pub\
	-- lrp-add lr-bgp lr-bgp-pub2 00:00:00:ff:00:02\
	-- lsp-add public2 pub2-bgp\
	-- set logical_switch_port pub2-bgp type=router\
	options:router-port=lr-bgp-pub2
ovn-nbctl lsp-add public2 ls2p1\
	-- lsp-set-addresses ls2p1 "00:00:00:00:02:01 20.2.0.1 2202::1"\
	-- lsp-add public2 ls2p2\
	-- lsp-set-addresses ls2p2 "00:00:00:00:02:02 20.2.0.2 2202::2"
ip link add br-101 type bridge
ip link set br-101 master vrf101 addrgenmode none
ip link set br-101 up
ip link add vxlan-101 type vxlan id 101 dstport 60011 local 20.0.86.25 nolearning
ip link set dev vxlan-101 up
ip link set vxlan-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
ip link del vrf102
ip link add vrf102 type vrf table 102
ip link set vrf102 up
ip link del br-102
ip link add br-102 type bridge
ip link set br-102 master vrf102 addrgenmode none
ip link set br-102 up
ip link add vxlan-102 type vxlan id 102 dstport 60011 local 20.0.86.25 nolearning
ip link set dev vxlan-102 up
ip link set vxlan-102 master br-102
ip link add name lo-102 type dummy
ip link set lo-102 master br-102
ip link set lo-102 up
ovn-nbctl set logical_switch public other_config:dynamic-routing-vni=101\
	-- set logical_switch public other_config:dynamic-routing-redistribute=fdb\
	-- set logical_switch public2 other_config:dynamic-routing-vni=102\
	-- set logical_switch public2 other_config:dynamic-routing-redistribute=fdb
bridge fdb append 00:00:00:00:00:00 dev vxlan-101 dst 20.0.86.26 static permanent
bridge fdb add 00:00:ff:ff:01:02 dev vxlan-101 dst 20.0.86.26 static extern_learn
bridge fdb append 00:00:00:00:00:00 dev vxlan-102 dst 20.0.86.26 static permanent
bridge fdb add 00:00:ff:ff:02:02 dev vxlan-102 dst 20.0.86.26 static extern_learn
bridge fdb add 00:00:ff:ff:01:02 dev vxlan-102 dst 20.0.86.26 static extern_learn

ip neigh add dev br-101 20.0.0.150 lladdr f0:00:0f:16:10:50 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
tail -n 10 /var/log/ovn/ovn-controller.log
ovn-nbctl --wait=sb set logical_switch public other_config:dynamic-routing-redistribute=ip
sleep 2
ip neigh show dev br-101 nud noarp
ovn-nbctl --wait=sb set logical_switch public other_config:dynamic-routing-redistribute=fdb,ip
sleep 2
ip neigh show dev br-101 nud noarp

Expected Behavior: Describe what should happen under normal circumstances.

both ip and fdb would be advertised

Observed Behavior: Explain what actually happens.

neither ip nor fdb is advertised

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)

+ ovn-nbctl --wait=sb set logical_switch public other_config:dynamic-routing-redistribute=ip
+ sleep 2
+ ip neigh show dev br-101 nud noarp
20.0.0.150 lladdr f0:00:0f:16:10:50 extern_learn NOARP 
20.0.0.2 lladdr 00:00:00:00:00:03 NOARP 
20.0.0.1 lladdr 00:00:00:00:01:01 NOARP 
2002::2 lladdr 00:00:00:00:00:03 NOARP 
2002::1 lladdr 00:00:00:00:01:01 NOARP 
+ ovn-nbctl --wait=sb set logical_switch public other_config:dynamic-routing-redistribute=fdb,ip
+ sleep 2
+ ip neigh show dev br-101 nud noarp
20.0.0.150 lladdr f0:00:0f:16:10:50 extern_learn NOARP 
[root@wsfd-advnetlab18 evpn]# rpm -qa | grep -E "openvswitch|ovn"
openvswitch-selinux-extra-policy-1.0-39.el9fdp.noarch
openvswitch3.5-3.5.1-44.el9fdp.x86_64
python3-openvswitch3.5-3.5.1-44.el9fdp.x86_64
ovn26.03-26.03.0-alpha.134.el9fdp.x86_64
ovn26.03-central-26.03.0-alpha.134.el9fdp.x86_64
ovn26.03-host-26.03.0-alpha.134.el9fdp.x86_64

Assignee:: OVN Team

Reporter:: Jianlin Shi

QA Contact:: OVN QE

Votes:: 0 Vote for this issue

Watchers:: 3 Start watching this issue

Created:: 2025/10/31 2:26 PM

Updated:: 2025/11/05 9:01 AM

Details

Description

Problem Description: Clearly explain the issue.

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).

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.

Reproduction Steps: Provide detailed steps or scripts to replicate the issue.

Expected Behavior: Describe what should happen under normal circumstances.

Observed Behavior: Explain what actually happens.

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)

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