arp responder will be created for a vlan port when port ip changed
Bug #1824504 reported by
Yang Li
This bug affects 2 people
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
neutron |
Fix Released
|
Medium
|
Yang Li |
Bug Description
When the env contains both vlan and vxlan networks, if we enable l2pop and arp_responder function, when we update a vlan port's ip(VM1), the arp responder for this port will be created in br-tun.
When other compute‘s vm(VM2) ping VM1, the first arp destination is ff:ff:ff:ff:ff:ff, so every compute node will get this arp request, and because of arp responder, they will all create a arp reply to the VM2, all these arp reply packets will confuse physical switch, this will cause some network connection problem.
Changed in neutron: | |
importance: | Undecided → Medium |
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When we update a port ip, we should check if the network is tunnel type, if not, we should not handle arp related function.