[121613] in North American Network Operators' Group
RE: Using /31 for router links
daemon@ATHENA.MIT.EDU (George Bonser)
Fri Jan 22 23:45:29 2010
Date: Fri, 22 Jan 2010 20:45:03 -0800
In-Reply-To: <69855A8C-F746-4051-B5BC-41D2B77ADA3A@daork.net>
From: "George Bonser" <gbonser@seven.com>
To: "Nathan Ward" <nanog@daork.net>,
"nanOG list" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
> ARP is still required on ethernet links, so that the MAC address can
be
> discovered for use in the ethernet frame header. /31 does not change
> the behavior of ARP at all.
>=20
> --
> Nathan Ward
>=20
I often manually configure the MAC addresses in static fashion on
point-to-points to eliminate the ARPing but that is nothing unique to a
/31. It does eliminate the need for ARP, though.