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Mainstream Cloud Networking with Flexible Ethernet

Jayshree Ullal
by Jayshree Ullal on Sep 14, 2015 3:28:42 PM

Networking vendors have long touted distinct routers and switches with different LAN and WAN interfaces. Remember IBM Token Ring versus Ethernet? Or ATM or Sonet versus Ethernet or more recently Fibre Channel SANs versus Ethernet? Ethernet truly addresses the present state and next generation of networking, usually obsoleting the alternatives. Ethernet has proven its evolution and elasticity over four decades. Arista, together with an ecosystem of partners including Broadcom, Google and Microsoft, founded the 25GbE and 50GbE Consortium to ensure Ethernet flexibility for multiple speeds. These range from 1/10GbE to 40/100GbE today and there are even future plans for 400GbE and Terabit Ethernet with the same frame format!

Indeed I am left wondering whether we ever need another “Ethernot” technology for mainstream cloud networking? I think not.

Cloud Networking Drives Speed Upgrades:

As the deployment of workloads and volume of workflows and traffic increase, the importance of building a universal leaf-spine for multi-terabit capacity and many Ethernet interfaces is vital. Building around a familiar standard entering its third decade that can interact with earlier versions of itself, represents the most logical and cost-effective path. Ethernet will continue to evolve because Ethernet networks can be improved with relatively minor modifications. Just as the early Internet used UNIX hosts as routers in the 1980s, eventually it took high performance routers and switches to support its growth in the 1990s. We’re at a similar stage for unified cloud networking growth in 2015 through 2020.  Eventually we all need to embrace the principles of cloud networking with Ethernet to allow further expansion from 1GbE ->10GbE->25GbE->40/50GbE->100GbE. Undoubtedly, Ethernet creates a thriving and familiar evolution for billions of users.

The multi-speed flexibility of Arista’s newly introduced 7050X, 7060X, 7260X and 7320X platforms is another fitting example of Ethernet trends. By running the same EOS binary image and the full EOS feature set, including Open Programmability, VXLAN, UFT for optimal scalability, Hitless Speed Changes, Smart System Upgrade (SSU) - Leaf and LANZ™, Arista continues to uphold its tradition of low cost and high operational flexibility.

Cloudify Enterprises - Unshackle Old Habits

Building networks around a standard technology that evolves and interacts with earlier versions of itself represents the most logical and cost-effective path. This sound reasoning makes it even easier to break old habits and move on to faster, better and more economical cloud networking. I am happy with my new Tesla but when a self-driving car from Apple or Google appears, I may have to evolve my thinking to incorporate new ideas about driving. Welcome to the new decade of cloud networking and Ethernet scale with innovations never witnessed before in legacy networks.

I always welcome your comments


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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.
Jayshree Ullal
Written by Jayshree Ullal
As President and CEO of Arista for over a decade, Jayshree Ullal is responsible for Arista’s business and thought leadership in cloud networking. She led the company to a historic and successful IPO in June 2014 from zero to a multibillion-dollar business. Formerly Jayshree was Senior Vice President at Cisco, responsible for a $10B business in datacenter, switching and services. With more than 30 years of networking experience, she is the recipient of numerous awards including E&Y’s “Entrepreneur of the Year” in 2015, Barron’s “World’s Best CEOs” in 2018 and one of Fortune’s “Top 20 Business persons” in 2019. Jayshree holds a B.S. in Engineering (Electrical) and an M.S. degree in engineering management. She is a recipient of the SFSU and SCU Distinguished Alumni Awards in 2013 and 2016.

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