[177731] in North American Network Operators' Group

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Re: Cisco Nexus

daemon@ATHENA.MIT.EDU (David Bass)
Mon Feb 2 13:51:15 2015

X-Original-To: nanog@nanog.org
In-Reply-To: <ec693dfdbb2a4b7db5a55c02c021ee01@MN2COREXC010.core.internal.corp>
From: David Bass <davidbass570@gmail.com>
Date: Mon, 2 Feb 2015 12:51:04 -0600
To: "Herman, Anthony" <Anthony.Herman@mattersight.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org

The n2k ToR is not a great design for user or storage interfaces if most of y=
our traffic is east/west.  It is great as a low cost ilo/drac/choose your oo=
b port, or if most of your traffic is north/south.  Biggest thing to remembe=
r is that it is not a switch, and has limitations such as not connecting oth=
er switches to it. Like anything else you have to understand the product so t=
hat you don't engineer something that it wasn't designed to do.=20

Lots of very large companies using Nexus gear...

That being said I prefer Arista when I'm architecting DCs.=20



> On Feb 2, 2015, at 12:17 PM, Herman, Anthony <Anthony.Herman@mattersight.c=
om> wrote:
>=20
> Nanog,
>=20
> I would like to poll the collective for experiences both positive and nega=
tive with the Nexus line. More specifically I am interested in hearing about=
 FEX with N2K at the ToR and if this has indeed made any impact on Opex as w=
ell as non-obvious shortcomings to using the fabric extenders. Also if anyon=
e is using any of the Nexus line for I/O convergence (FCoE) I would be inter=
ested in hearing your experience with this as well.
>=20
> Thank you in advance,
>=20
> -A

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