nanog mailing list archives
RE: IPv6 day and tunnels
From: "Templin, Fred L" <Fred.L.Templin () boeing com>
Date: Tue, 5 Jun 2012 15:50:58 -0700
-----Original Message----- From: Masataka Ohta [mailto:mohta () necom830 hpcl titech ac jp] Sent: Tuesday, June 05, 2012 3:41 PM To: Templin, Fred L Cc: nanog () nanog org Subject: Re: IPv6 day and tunnels Templin, Fred L wrote:Infinity? You can't carry 65516B in an IPv4 packet.2) For tunnels over IPv6, let infinity equal (2^32 - 1)You can't carry a 65516B IPv6 packet in an IPv4 packet.
No, but you can carry a ((2^32 - 1) - X) IPv6 packet in an IPv6 packet. Just insert a jumbogram extension header.
Instead, see the last two lines in second last slide of: http://meetings.apnic.net/__data/assets/file/0018/38214/pathMTU.pdf It is a common condition.Are you interested in only supporting tinygrams? IMHO, go big or go home!Bigger packets makes it rather circuit switching than packet switching. The way to lose. Faster is the way to go.
Why only fast when you can have both big *and* fast? See Matt's pages on raising the Internet MTU: http://staff.psc.edu/mathis/MTU/ Time on the wire is what matters, and on a 100Gbps wire you can push 6MB in 480usec. That seems more like packet switching latency rather than circuit switching latency. Fred fred.l.templin () boeing com
Masataka Ohta
Current thread:
- RE: IPv6 day and tunnels, (continued)
- RE: IPv6 day and tunnels Templin, Fred L (Jun 05)
- Re: IPv6 day and tunnels Masataka Ohta (Jun 05)
- RE: IPv6 day and tunnels Templin, Fred L (Jun 05)
- Re: IPv6 day and tunnels Masataka Ohta (Jun 05)
- RE: IPv6 day and tunnels Templin, Fred L (Jun 05)
- Re: IPv6 day and tunnels Masataka Ohta (Jun 05)
- RE: IPv6 day and tunnels Templin, Fred L (Jun 05)
- Re: IPv6 day and tunnels Masataka Ohta (Jun 05)
- RE: IPv6 day and tunnels Templin, Fred L (Jun 05)
- Re: IPv6 day and tunnels Masataka Ohta (Jun 05)
- RE: IPv6 day and tunnels Templin, Fred L (Jun 05)
- Re: IPv6 day and tunnels Masataka Ohta (Jun 05)
- Re: IPv6 day and tunnels Owen DeLong (Jun 05)
- Re: IPv6 day and tunnels Joe Maimon (Jun 06)
- Re: IPv6 day and tunnels Masataka Ohta (Jun 06)
- RE: IPv6 day and tunnels Templin, Fred L (Jun 07)
- Re: IPv6 day and tunnels Masataka Ohta (Jun 12)
- RE: IPv6 day and tunnels Templin, Fred L (Jun 12)
- Re: IPv6 day and tunnels Masataka Ohta (Jun 12)
- RE: IPv6 day and tunnels Templin, Fred L (Jun 12)
- Re: IPv6 day and tunnels Masataka Ohta (Jun 12)