All posts by Jeramiah Dooley

Jeramiah Dooley brings more than 17 years of technology and design experience to his industry efforts. He was most recently part of the VCE Office of the CTO, working with technology executives around the world on strategies to converge and streamline infrastructure and operations. Previously, he was the global SME for Service Provider business development, multi-tenancy and vCloud Director design as part of the Field Enablement team within the VCE Corporate Engineering Group. He has also helped develop Service Provider and Vertical Solutions for VCE, helping customers by providing pre-tested and validated guidelines for running different applications on Vblock platforms, including Cisco Unified Communications, VMware vCloud Director, and ESRI ArcGIS Server among others.Prior to joining VCE, Mr. Dooley was the Director of Engineering for Managed Services at Peak 10, a regional service provider based in Charlotte, NC. He directed the overall strategy, design and development of Peak 10's Managed Services platform, which included the company's Cloud Services, Data Protection, Managed Storage, Managed Security Device Management and BC/DR divisions. He has also held technology positions in the medical, law and tele-communications field during his career, and can be contacted at jdooley@virtualizationpractice.com

OpFlex, Standards-Based Protocols, and Cisco’s Messaging Problem

SDN-IconOn April second, Cisco introduced something that seems to make a lot of sense in its new declarative-based, ACI-led world of software-defined networking: a policy mechanism. The blog post about it was pretty straightforward: it included the obligatory nods toward the Internet Engineering Task Force (IETF) and open-source communities, defined the differences between the traditional imperative and the newer Cisco declarative models, and had snazzy graphics. Cisco laid out the core challenge clearly:

For this declarative model to work across a multi-vendor environment, to translate and map policy definition into the infrastructure, there has hitherto been no standard protocol to do that across physical/virtual switches, routers and L4-L7 network services. This vacuum has led to the development of OpFlex, a new open standard recently submitted to the IETF.

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SDN, NFV, and the Hardware Cycle of Life

Despite all of the rapid innovation and the incredible rate of change in technology, there are some things that you can count on. One of those things is that the transition from hardware to software is a cyclical one, and if you look at any one segment of the market long enough, that becomes apparent. We’ve seen it in the move from mainframes to x86 servers, to virtualized servers, to distributed, scale-out systems. We’ve seen it in the move from terminals to PCs to VDI to EUC and even in the move from legacy storage arrays to software layer, scale-out storage aggregation. Now, we can start to see the SDN market following the same pattern, and one of the leading indicators of that comes from a company called Netronome.

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