nanog mailing list archives
Re: OMB: IPv6 by June 2008
From: Phillip Vandry <vandry () TZoNE ORG>
Date: Tue, 12 Jul 2005 13:52:48 -0400
On Wed, Jul 06, 2005 at 09:46:53PM +0200, Iljitsch van Beijnum wrote:
It's getting better all the time, but there are still strange bugs in the applications, OSes and even the standards. IPv6 works very well for many things but not so well for others. Fortunately, there is still plenty of time to work out all the kinks before we need IPv6 to step up to the plate. In the mean time, we need SOME IPv6 so that the early adopters can find those kinks, and that part is right on track.
How are people making the case for IPv6 with popular applications like voice? With G.711 and 20ms voice samples, with IPv4 you get: 20 bytes IP + 8 bytes UDP + 12 bytes RTP + 160 bytes payload 20% overhead. Now with IPv6. Say we use shim6 or something like that to implement multihoming too. The shim6 header isn't decided yet, but I suppose it's got to contain at least a pair of addresses (32 bytes). 40 bytes IP + 32 bytes shim6 8 bytes UDP + 12 bytes RTP + 160 bytes payload 36.5% overhead Almost twice as much overhead is a much tougher pill to swallow. I would try to stay with IPv4 as long as I could. Even without adding shim6 into the picture you're taking a significant penalty. -Phil
Current thread:
- Re: OMB: IPv6 by June 2008, (continued)
- Re: OMB: IPv6 by June 2008 David Conrad (Jul 08)
- Re: OMB: IPv6 by June 2008 Iljitsch van Beijnum (Jul 08)
- Re: OMB: IPv6 by June 2008 Daniel Golding (Jul 08)
- Re: OMB: IPv6 by June 2008 (OT reminder) John Curran (Jul 08)
- Re: OMB: IPv6 by June 2008 Rich Emmings (Jul 11)
- Re: OMB: IPv6 by June 2008 Hank Nussbacher (Jul 11)
- Re: OMB: IPv6 by June 2008 bmanning (Jul 11)
- Re: OMB: IPv6 by June 2008 william(at)elan.net (Jul 11)
- Re: OMB: IPv6 by June 2008 Hank Nussbacher (Jul 12)
- Re: OMB: IPv6 by June 2008 Jay R. Ashworth (Jul 12)
- Re: OMB: IPv6 by June 2008 Phillip Vandry (Jul 12)
- Re: OMB: IPv6 by June 2008 Iljitsch van Beijnum (Jul 12)
- Re: OMB: IPv6 by June 2008 Randy Bush (Jul 12)
- Re: OMB: IPv6 by June 2008 David Andersen (Jul 12)
- Re: OMB: IPv6 by June 2008 Phillip Vandry (Jul 12)
- Re: OMB: IPv6 by June 2008 Bill Stewart (Jul 12)
- Comment - Re: OMB: IPv6 by June 2008 Joseph T. Klein (Jul 12)
- Re: Comment - Re: OMB: IPv6 by June 2008 Todd Vierling (Jul 13)
- Re: OMB: IPv6 by June 2008 Robert E . Seastrom (Jul 07)
- Re: OMB: IPv6 by June 2008 Scott McGrath (Jul 07)
- Re: OMB: IPv6 by June 2008 Jeroen Massar (Jul 07)