Routers in Data Centers

James P. Ashton james at
Fri Sep 24 12:47:14 UTC 2010

The biggest difference that I see is that you generally use different resources in a Datacenter. (Colo Datacenter).

 For example, I run out of HSRP groups on a 6500 long before I run out of ports or capacity.  I don't need to worry about QoS much but a less complex rate limit command (As opposed to Policing) is very useful. Also, Front to back cooling is optimal in a Datacenter and often not available.


----- Original Message -----
From: "Venkatesh Sriram" <vnktshsriram at>
To: nanog at
Sent: Friday, September 24, 2010 6:22:22 AM
Subject: Routers in Data Centers


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?

Thanks, Venkatesh

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