[129983] in North American Network Operators' Group
Re: Routers in Data Centers
daemon@ATHENA.MIT.EDU (Chris Woodfield)
Fri Sep 24 16:55:33 2010
From: Chris Woodfield <rekoil@semihuman.com>
In-Reply-To: <AANLkTikFdokTjZOxhD3orWZSmJcKgXe8TD3VGNe+-TPB@mail.gmail.com>
Date: Fri, 24 Sep 2010 13:55:19 -0700
To: Venkatesh Sriram <vnktshsriram@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
Historically, you would find that routers designed for long-haul =
transport (Cisco GSR/CRS, Juniper M-series, etc) generally had deeper =
buffers per-port and more robust QoS capabilities than datacenter =
routers that were effectively switches with Layer 3 logic bolted on =
(*coughMSFCcough*). That line has blurred quite a bit lately, however - =
Cisco's ES line cards are an example.=20
That said, there's plenty of debate as to whether or not these features =
actually make for a better long-haul router or not - I've seen more =
metro and national backbones built with Cat6500^H^H^H^H7600s than you'd =
think.
-C
On Sep 24, 2010, at 3:22 22AM, Venkatesh Sriram wrote:
> Hi,
>=20
> Can somebody educate me on (or pass some pointers) what differentiates
> a router operating and optimized for data centers versus, say a router
> work in the metro ethernet space? What is it thats required for
> routers operating in data centers? High throughput, what else?
>=20
> Thanks, Venkatesh
>=20
