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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
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