IPv6

Fri Jun 13 14:20:10 UTC 2003

I guess that means vendor C has no excuse on the 7200 VXR series (and I
believe a few of the newer models).  But I still don't see anthing
fantastically IPv6 happening there.

Daryl G. Jurbala
Introspect.net Consulting
Tel: +1 215 825 8401
Fax: +1 508 526 8500
http://www.introspect.net <http://www.introspect.net/> 

PGP Key: http://www.introspect.net/pgp <http://www.introspect.net/pgp>

	-----Original Message-----
	From: stephen at sprunk.org [mailto:stephen at sprunk.org] 
	Sent: Friday, June 13, 2003 12:48 AM
	To: eddy+public+spam at noc.everquick.net
	Cc: nanog at merit.edu
	Subject: Re: IPv6

	 [.....]  

	Most L3 switches shipping today (e.g. the product in question)
have 
	particular ethertypes and destination address offsets hardcoded
into their 
	ASICs.  It's not a matter of supporting 128-bit addresses --
they simply 
	doesn't understand IPv6's header any more than they do DECnet or
AppleTalk. 

	While allocation policies may have an effect on how IPv6 FIBs
are most 
	efficiently stored, address length is a fairly small part of the
problem 
	when you're talking about redesigning every ASIC to handle both
IPv4 and 
	IPv6. 

	 [....]

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.nanog.org/pipermail/nanog/attachments/20030613/423586a0/attachment.html>