Designing Fault Tolerant Data Centers of the Future
To respond to application failures as quickly as possible, network administrators need a highly scalable, fault-tolerant data center architecture that is simple to manage and troubleshoot.
Cisco APIC Makes Best of Interop 2015 Finalist
With Interop less than three weeks away, we are excited to learn that Cisco APIC, the SDN controller for...
Three light beams that emanated from OpenDaylight Summit
Earlier this month, I attended the first ever summit on OpenDaylight (ODL) project in Santa Clara, CA. This near sold out event was largely successful by many standards. It brought together a large number of great minds to the table to solve some of the toughest challenges the networking industry is facing around Software-defined Networking […]
SDN Reflections on the London Gartner Data Center Conference – Part 2
Last week I started my SDN reflections on the London Gartner Data Center Conference, and I found I had quite a lot to discuss. Last week I covered: Do we need SDN? SDN and the Gartner Hype Cycle SDN Deployment Models So here is the concluding part. This week I’ll cover: Overlay-Based SDN — and the […]
SDN: Cisco Domain Ten tells us it’s not (just) about the Network
In my first SDN blog, I asserted that "Services" - that is technical support, professional and consultancy services - are the missing "S" in the SDN debate. I'd...
ONE + ONE = 6: New Math for Enterprise Programmability
In my previous 3-part blog series I discussed the challenges in the Enterprise WAN and relevancy of SDN in overcoming these challenges and how Cisco ONE Enterprise Networks Architecture addresses these WAN challenges. In this blog post I will discuss how Cisco ONE (Open Network Environment) and ONE Enterprise Networks Architecture fit together. In a […]
What is a “Controller”? And how many do we need?
Thanks to SDN, the “Controller” word pops up in many network architecture discussions these days. In networking alone, we’re already surrounded by many “controllers” and we’re busy introducing more as we speak: For example, Session Border Controllers or Wireless LAN Controllers have been around for quite some time, and have recently announced the OpenDaylight Controller, […]
Let’s Clear Up Some Misconceptions – Is SDN Relevant to the Enterprise WAN?
June is summer weather in the San Francisco Bay Area, but quite different from the June I was used to in Boston. A common misconception around Mark Twain and his relationship with San Francisco summer is that he never said “The coldest winter I ever spent was a summer in San Francisco.” But he did […]
Meet Me On The Equinox
Congratulations to all OpenDaylight founding partners, contributors, users and supporters. I am convinced this ambitious endeavor will redefine the meaning of “open source = collaboration”. This is a historic event, the coming of age of networking partners driving in the open source world, companies which until now, have been primarily preoccupied with driving open standards, though […]