Hello!
> > Does eql, teql or bonding devices have any failover capabilities?
>
> Not in the kernel. Even the routing based failover is rather poor, because the
> drivers usually don't signal link failures to upper layers. It is
> not too hard to fix though. One way would be to use a watchdog in userspace
> that changes the configuration if needed.
Actually, teql on arpable media (particularly, on ethernet) does
dead nexthop detection and does not use dead wires.
Time of reaction is controlled by ARP parameters.
Alexey
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