Cannot configure router HA port when L2 agent is down while creating HA router
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| neutron |
New
|
Undecided
|
Unassigned | ||
Bug Description
The situation I have encounter in Liberty-3 devstack.
When creating HA router on network nodes with dead L2 agent (ovs), the HA port cannot be properly configured on that node after starting the L2 agent - the L2 agent is treating the HA port as dead and is blocking all the traffic on that port in OVS flow.
The only way to recover from that situation is to delete the HA router and then create a new one.
Steps to reproduce:
1. Have 2 network nodes: turn off L2 agent on one of them.
2. Create HA router.
3. Check for ha- interfaces, one of them will not be configured in OVS.
4. Start L2 agent
5. In OVS flows the HA port will be blocked, and it will have assign VLAN 4095.
There is no way of recover from that situation, beside deleting the HA router.
