On Thu, Sep 22, 2016 at 05:50:09PM +0100, Steven Hartland wrote:

> Having tested with a number of vendor switches Cisco, Extreme and more 
> recently Arista only sending gratuitous ARP for IPv4 and unsolicited NA 
> for IPv6 reliably resulted in rapid failover between LAGG ports.
> Other methods like sending correctly addressed output from the new port 
> helped, we tested this with outbound pings from IPMI, but still resulted 
> in noticeable recovery delay.

Can you give network diagram and switchs configs for this?
Recovery delay on lagg interface and lacp protocol must be about 2s by
default configuration.

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