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xen-users
RE: [Xen-users] Lots of udp (multicast) packet loss in domU
On Wed, Jan 14, 2009 at 8:42 AM "Mike Kazmier" <DaKaZ@xxxxxxxxx> wrote:
>James, on more item of note:
>
> > These days, each DomU network interface should be making Dom0 aware of
> > what multicast traffic it should be receiving, so unless your domU
> > kernels are old that shouldn't be your problem, but maybe someone else
> > can confirm that multicast is definitely in place?
>
> We are running xen 3.3.0 on a 2.6.18 dom0 and domU, but my domU gets 100% of
> the traffic even when its not joined to any of the groups. Do you know which
> recent kernel versions would support igmp snooping / pruning such that my
> domU's only get what they are registered for?
Just to test, I loaded up a 2.6.25 dom0 we have and unfortunately, we still see
all multicast traffic in the domU without requesting it. a quick look at
netstat -g shows only the 224.0.0.1 membership. Kernel has multicast enabled
of course ;)
--Mike
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