[Bug 156226] [lagg]: failover does not announce the failover to switch

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=156226

--- Comment #16 from pvz at itassistans.se ---
In this case it's not even a case of a protocol though, it's rather just some
functionality to prod even the dumbest stack of switches that are smart enough
to know about MAC learning to do the right thing.

I think though that this could well be made into a really simple user-space
daemon with a few hundred lines of code and no configuration file, though it
would be "cleaner" (for a regular end user) for it to just be built into lagg.

The code would be something like: every now and then, iterate over all laggs.
If the master has changed, send out an ethernet frame on the interface, and on
any VLAN interfaces on top of the lagg. Would that be something that could be
included in the base system as a feature rather than just adding the
functionality to lagg?

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