[6232] in North American Network Operators' Group
Re: Why doesn't BGP... -Reply
daemon@ATHENA.MIT.EDU (Vadim Antonov)
Wed Nov 20 15:22:53 1996
Date: Wed, 20 Nov 1996 11:58:11 -0800
From: Vadim Antonov <avg@pluris.com>
To: nanog@merit.edu
Curtis Villamizar <curtis@ans.net> wrote:
>IP routing has an scaling advantage over call setup. Call setup can
>take advantage of the lowest loaded path at the time of setup,
>providing a better chance to load balance (ala PNNI).
The Pluris load-balanding approach allows gradual shifting of load
between pipes while doing native IP routing.
>The VC table
>has a speed forwarding advantage over the IP radix tree.
The upper levels of the radix tree fit nicely in L1 cache,
so the real advantage of VC table is far smaller.
>The radix
>tree may have a space advantage due to aggregation.
Radix tree is O(log n) from size of the network. (n is the
number of hosts). VC table is O(n), at least at some switches.
>That in a
>nutshell is the IP vs ATM flamewar (did I miss anything - ommisions
>private mail unless it was major).
Nah, it is much funnier. I plan to publish my comments on the issue
at Pluris web site shortly.
>The interest in IP switching
>(CSRs, tag switching, IP switching proposal de jour) comes from a
>desire to combine the best of the two.
What happened to K.I.S.S.? :)
--vadim
