[141617] in North American Network Operators' Group
Re: World IPv6 Only Day.
daemon@ATHENA.MIT.EDU (Iljitsch van Beijnum)
Thu Jun 9 14:15:54 2011
From: Iljitsch van Beijnum <iljitsch@muada.com>
In-Reply-To: <BANLkTinftNbrngOgVxTy+ehSOjSs4sDKsnbiwxCv+fK-2rLNog@mail.gmail.com>
Date: Thu, 9 Jun 2011 20:14:36 +0200
To: Ray Soucy <rps@maine.edu>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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.=
