liyingjun bcb2da2ba2 Add option ha_vrrp_health_check_interval for l3
option 'ha_vrrp_health_check_interval' is needed to fix split-brain
in HA router[1][2], we should add this to l3_agent.ini.

[1] https://bugs.launchpad.net/neutron/+bug/1365461
[2] https://bugs.launchpad.net/neutron/+bug/1375625
[3] https://docs.openstack.org/ocata/networking-guide/deploy-ovs-ha-vrrp.html#keepalived-vrrp-health-check

Change-Id: I3f38f09068c17e3ed790611ffe5e445d14318cd1
Closes-bug: #1698992
2017-06-20 04:53:22 -04:00
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