On Jan 31, 2013, at 8:20 AM, "Edward Ned Harvey (lopser)"
<lop...@nedharvey.com> wrote:
> Why would you want to do that? Why wouldn't you bond all 4 connections
> together?
> ec0 = bond rr eth0 eth1 eth2 eth3
>
> Any one, or two, or three go down, the remaining one(s) still function as
> desired...
Well, you might want predictable behavior. Let's say:
eth0/1 go to your "A" side switches
eth2/3 go to your "B" side switches
And "A" is generally where all your activity sits, unless you're doing
maintenance or have an outage on the "A" side, at which point traffic shifts to
the "B" side.
And it could be that the "B" side hardware is less robust, lower-performance,
but "workable" in the event of an A-side outage. Or it goes to a different
upstream router/ISP at a higher cost.
Lots of possibilities.
D
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