nanog mailing list archives
Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations
From: Leo Bicknell <bicknell () ufp org>
Date: Fri, 11 Mar 2011 11:55:05 -0800
In a message written on Fri, Mar 11, 2011 at 10:58:09AM -0800, Leo Bicknell wrote:
That said, ND has built into it DAD - Duplicate Address Detection. There is already an expectation that there will be collisions, and the protocols to detect them are already in place. I see little to no reason you couldn't use a different length subnet (like the /96 in your example), randomly select an address and do DAD to see if it is in use. Indeed, this is pretty much how AppleTalk back in the day worked (with a 16 bit number space).
Three people have now mailed me privately saying that DAD does not provide a way to select a second address if your first choice is not in use. What I am basically suggesting is to use the same method in RFC 3041 as the default way to get an address. That is the protocol is already defined and deployed, it's just today it's used for a second (third, fourth, ...) address. -- Leo Bicknell - bicknell () ufp org - CCIE 3440 PGP keys at http://www.ufp.org/~bicknell/
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Current thread:
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations, (continued)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Owen DeLong (Mar 10)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Dobbins, Roland (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations James Stahr (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Tim Durack (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Richard A Steenbergen (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Jeff Wheeler (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Joe Maimon (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Valdis . Kletnieks (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Joe Maimon (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Leo Bicknell (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Leo Bicknell (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Joe Maimon (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Pete Carah (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Owen DeLong (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Leo Bicknell (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Joe Maimon (Mar 12)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Hammer (Mar 14)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Jeff Wheeler (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Mikael Abrahamsson (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Nick Hilliard (Mar 11)
- Re: Internet Edge Router replacement - IPv6 route tablesizeconsiderations Ask Bjørn Hansen (Mar 14)