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Jayshree Ullal, 2010

The Power of Cloud Networking

The future of data centers is changing rapidly. Enterprise data centers are no more about basic networking connectivity where networking was driven mostly by client-server applications such as email and web at 1Gigabit Ethernet connectivity with 10% utilization. The data center world is getting better, faster and is demanding a wire speed network approach for scaling new applications that are more server-to-server.

To appreciate this lets take a look at a typical legacy network designed using three layers since the 1990s- access, aggregation, and core. Each network layer was oversubscribed 4:1 or sometimes even 8:1. As over-subscription is multiplicative, the overall network congestion was often 50:1 or even 100:1 oversubscribed. Each layer in the network also added 40 to 50us latency and transit delays. This was acceptable in legacy designs with static email class applications and a small number of server racks where traffic patterns were mostly north south for client server communication. This is proving to be the bottleneck for new applications.

Jayshree Ullal
By Jayshree Ullal
on Jun 14, 2010 12:19:18 AM
   
The Power of Cloud Networking

The future of data centers is changing rapidly. Enterprise data centers are no more about basic networking connectivity where...

Jayshree Ullal
By Jayshree Ullal
on Jun 14, 2010 12:19:18 AM
Arista 7500: A New Switch is Born!

In my networking career I have been involved in a few generations of switches spanning multiple decades. The goal has always...

Jayshree Ullal
By Jayshree Ullal
on May 10, 2010 1:02:59 AM
10 GbE is the no-brainer in Storage Networking

I am a big fan and proponent of iSCSI or NAS protocols over 10GbE for storage access. It is the workhorse and unsung hero in...

Jayshree Ullal
By Jayshree Ullal
on Feb 28, 2010 11:23:25 PM
The race to zero latency in Cloud Networking

The goal is millions of transactions in real time. Not an easy feat without a new class of networking gear and new...

Jayshree Ullal
By Jayshree Ullal
on Jan 31, 2010 4:00:35 PM
Is 2010 the Year of 10Gig?

As 2010 begins and we celebrate the onset of the next new decade, I would like to wish my readers a happy new year and also...

Jayshree Ullal
By Jayshree Ullal
on Jan 6, 2010 12:56:10 AM
Evolution of Switching Architectures in Cloud Networking

As we wrap up this year, I do sense that the architectural shift in the datacenter environments has begun to change traditional...

Jayshree Ullal
By Jayshree Ullal
on Dec 3, 2009 7:09:13 AM
Scalable Techniques for Multi-terabit Cloud Networking

Current data center network designs are very compromised. They are based on blocking multi-tier designs with 50:1...

Jayshree Ullal
By Jayshree Ullal
on Nov 2, 2009 2:48:34 AM
Celebrating our first year!

This month we are celebrating our first year as Arista Networks. We re-launched last year with our new name, our management...

Jayshree Ullal
By Jayshree Ullal
on Oct 6, 2009 3:31:10 AM
Virtualization & Cloud Networking: Connecting the Dots....

As we enter VMWorld I would like to explain this further and showcase Arista's thought leadership. The widespread deployment of...

Jayshree Ullal
By Jayshree Ullal
on Sep 2, 2009 3:14:56 AM
Virtualization & Clouds - Are they related?

Frequently, I am asked about the relationship between Virtualization and Clouds. In one word, the answer is "yes", they are...

Jayshree Ullal
By Jayshree Ullal
on Aug 5, 2009 2:51:42 AM

Opinions expressed here are the personal opinions of the original authors, not of Arista Networks. The content is provided for informational purposes only and is not meant to be an endorsement or representation by Arista Networks or any other party.
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