[ovs-dev] [BUG] broad-/multicast & SLB bonding -> FAIL
jesse at nicira.com
Wed Jan 23 21:31:45 UTC 2013
On Wed, Jan 23, 2013 at 12:56 PM, Ben Pfaff <blp at nicira.com> wrote:
> On Wed, Jan 23, 2013 at 06:18:52PM +0100, Markus Schuster wrote:
>> On Wednesday 23 January 2013 17:49:09 Ben Pfaff wrote:
>> > It looks like you have each interface on an SLB bond connected to two
>> > different switches.
>> > That's not a supported configuration and won't work reliably.
>> OK, any explanation why? Or to say it the other way: I can't see any
>> technical reason why it should work on the same switch but not on two
>> different? The MAC will jump between the ports the very same way and the VM
>> will suffer from the same connectivity issues, no matter what.
> Jesse, can you remind me why? I can never remember. This time, I'll
> add it to the FAQ.
It does seem risky given the other problems inherent in SLB bonding
but I can't actually think of a problem off the top of my head. It's
been at least 3 years since I worked on that code though, so I don't
really remember if I said something before.
The behavior described seems odd though and not really related to the
upstream switch configuration. Were there any modifications made to
the flow table?
More information about the dev