[174422] in North American Network Operators' Group
Re: Fwd: Interesting problems with using IPv6
daemon@ATHENA.MIT.EDU (Bruce Pinsky)
Mon Sep 15 02:30:19 2014
X-Original-To: nanog@nanog.org
Date: Sun, 14 Sep 2014 23:29:59 -0700
From: Bruce Pinsky <bep@whack.org>
To: Matthew Petach <mpetach@netflight.com>, Sam Stickland <sam@spacething.org>
In-Reply-To: <CAEmG1=pxN5htbqtO8_oguepoY4VRg5cCaV8iFD6QxQG15z84eg@mail.gmail.com>
Cc: nanog list <nanog@nanog.org>
Reply-To: bep@whack.org
Errors-To: nanog-bounces@nanog.org
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On 9/14/2014 11:20 AM, Matthew Petach wrote:
> On Sun, Sep 14, 2014 at 10:45 AM, Sam Stickland <sam@spacething.org> wr=
ote:
>=20
>> Slightly off topic, but has there ever been a proposed protocol where =
hosts
>> can register their L2/L3 binding with their connected switch (which co=
uld
>> then propagate the binding to other switches in the Layer 2 domain)?
>> Further discovery requests (e.g. ARP, ND) from other attached hosts co=
uld
>> then all be directly replied, eliminating broadcast gratuitous arps. I=
f the
>> switches don't support the protocol they would default to flooding the=
>> discovery requests.
>>
>> It seems to me that so many network are caused because of the inabilit=
y to
>> change the host mechanisms.
>>
>> Sam
>>
>=20
>=20
> It looks like in 2011 Cisco proposed a
> technology called "OTV" that would do
> just that, according to this page:
> http://network-101.blogspot.com/2011/03/otv-vs-vpls.html
> Granted, it was aimed for wide-area
> networking, rather than control within
> a datacenter; but as everyone who has
> started doing BGP to their top of rack
> switches has learned, there's often good
> value in adopting techniques and protocols
> used in the wide area network within the
> datacenter as well.
>=20
> However, I haven't heard recent mention
> of it, so I'm guessing it failed to make a
> big enough splash to get any widespread
> adoption.
>
Also consider the emergence of eVPN and PBB-eVPN.
https://www.ciscolive.com/online/connect/sessionDetail.ww?SESSION_ID=3D59=
98&tclass=3Dpopup
--=20
=3D=3D=3D=3D=3D=3D=3D=3D=3D
bep
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