Don't know whether this is any use to anyone. Might have already been posted.
@cookie_monster the default bonding mode is bonding-slb (mode 7) which I've struggled to find much on. What I have read (most of it is on the Citrix Xen Forums!) is that it doesn't require any switch support. According to XenServer Documentation traffic will only be going out over a single interface at a time so hopefully no problems will occur!
Hmm I wonder how they prevent mac flapping, I suppose if it only sends on one link at a time then it could be avoided but it still must confuse the switch. If traffic is only going out on one link at a time then the bond must be about redundancy rather than throughput.
@cookie_monster: I've just double-checked and I was telling you lies. The LACP is the SAN stuff, the XenServer boxes have no special config.
I think that the reason it works, is because each VM can only use one NIC at a time. XenServer presents the virtual NIC's MAC to the network and all is well. The balancing of the load across NICs is redone every few seconds.
Ok cheers looks like i'm all set to go then
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