[openstack-dev] [Neutron] Alternative approaches for L3 HA

Anna Taraday akamyshnikova at mirantis.com
Mon Feb 13 09:44:48 UTC 2017

In etcd for each HA router we can store key which will identify which agent
is active. L3 agents will "watch" this key.
All these tools have leader election mechanism which can be used to get
agent which is active for current HA router.

On Mon, Feb 13, 2017 at 7:02 AM zhi <changzhi1990 at gmail.com> wrote:

> Hi, we are using L3 HA in our production environment now. Router instances
> communicate to each other by VRRP protocol. In my opinion, although VRRP is
> a control plane thing, but the real VRRP traffic is using data plane nic so
> that router namespaces can not talk to each other sometimes when the  data
> plan is busy. If we were used etcd (or other), does every router instance
> register one "id" in etcd ?
> Thanks
> Zhi Chang
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Ann Taraday
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