North American Network Operators Group
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Re: IP4 Space
- From: William Herrin
- Date: Thu Mar 04 14:31:17 2010
On Thu, Mar 4, 2010 at 1:52 PM, Thomas Magill
<tmagill@providecommerce.com> wrote:
> 1. Why don't providers use /31 addresses for P2P links? This
> works fine per rfc 3021 but nobody seems to believe it or use it. Are
> there any major manufacturers out there that do not support it?
Because those who want to hyper-optimize use a /32 loopback address on
each router instead and rely on SNMP instead of Ping to determine
whether an interface is up.
> 2. Longer than /24 prefixes in global BGP table. The most obvious
> answer is that some hardware may not handle it...
That's the most obvious answer?
On Thu, Mar 4, 2010 at 2:12 PM, Joel Jaeggli <joelja@bogus.com> wrote:
> handling the v6 table is not currently hard (~2600 prefixes) while long
> term the temptation to do TE is roughly that same in v6 as in v4, the
> prospect of having a bunch of non-aggregatable direct assignments should
> be much lower...
Because we expect far fewer end users to multihome tomorrow than do today?
Regards,
Bill Herrin
--
William D. Herrin ................ herrin@dirtside.com bill@herrin.us
3005 Crane Dr. ...................... Web: <http://bill.herrin.us/>
Falls Church, VA 22042-3004
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