World IPv6 Only Day.

Iljitsch van Beijnum iljitsch at
Thu Jun 9 18:14:36 UTC 2011

On 9 jun 2011, at 19:34, Ray Soucy wrote:

> But you're correct that without MLD snooping IPv6 ND traffic is on par
> with IPv4 broadcast traffic and not a major problem.  It does mean,
> however, that a large IPv6 multicast stream, like video or system
> imaging, would be about as bad as doing so on IPv4 without IGMP
> snooping.

Of course the ethernet hardware in the host will filter multicast packets the host isn't listening for, so it just wastes some bandwidth on ports where the traffic isn't needed. This is unlike ARP, each ARP packet wakes up the CPU.

More information about the NANOG mailing list