[openstack-dev] [neutron][L3][DVR][arp]

Wuhongning wuhongning at huawei.com
Tue Dec 1 12:57:42 UTC 2015

Some one posted a bug [1] for vlan arp responder and vlan l2population, which use the merged patch [2] for supporting the same thing in the ofagent

So for DVR for vlan, I think we can continue with the bug fix above.

From: huangdenghui [hdh_1983 at 163.com]
Sent: Sunday, November 29, 2015 4:09 PM
To: OpenStack Development Mailing List (not for usage questions)
Subject: Re: [openstack-dev] [neutron][L3][DVR][arp]

If those 200 subnets are VXLAN networks, i think it is a good idea, since L2population already  propagate this configuration to OVS-Agent.

One comment for VLAN network, since DVR also support in VLAN network and L2population is not necessary in it, what is your consideration in this case?

At 2015-11-29 14:15:11, "Wuhongning" <wuhongning at huawei.com> wrote:
>Is it a good idea to add a configuration item for dvr, to disable any arp entry processing, and reuse arp response from L2population?
>When no static arp entry is found in qrouter namespace, it would cause a temp arp request, then it reached the br-tun, and replied by the OVS flow table.
>In a public cloud like AWS, it allow 200 subnets for each vpc, so sync routes would waste a lot of time
>OpenStack Development Mailing List (not for usage questions)
>Unsubscribe: OpenStack-dev-request at lists.openstack.org?subject:unsubscribe

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