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Jim Duffy

Jim Duffy

Managing Editor, Service Providers

Network World, Inc.

Jim Duffy

Managing Editor

Network World, Inc.

Jim Duffy has been covering technology for over 25 years, 21 at Network World. He covers enterprise networking infrastructure, including routers and switches. He also writes The Cisco Connection blog and can be reached on Twitter @Jim_Duffy and at


  • (716) 655-0103
  • Buffalo NY

Recent articles by Jim Duffy

Cisco, VMware take SDN battle to policy arena

April 04, 2014

The focus in SDNs and programmable networking is shifting to application policy, an area where vendors can instill their unique architectures and maintain customer dependency.

Cisco looks at extending OpFlex

April 03, 2014

Cisco says it is looking into extending its OpFlex policy protocol, unveiled this week at Interop, to legacy platforms such as the Catalyst 6500.

Cisco reveals OpenFlow SDN killer

April 02, 2014

At Interop this week, Cisco is unveiling an alternative to OpenFlow for software-defined networking and proposing it as a standard, while adding it as a vital component of the company's new programmable architecture.

Alcatel-Lucent ups the ante in unified access

April 01, 2014

At Interop this week, Alcatel-Lucent updated its wired/wireless unified access portfolio with a new access switch, and SDN and application analytics extensions.

HP bucks up unified access line to better battle Cisco, others

March 31, 2014

HP this week at the annual Interop Las Vegas conference is rolling out extensions to its unified access wired/wireless product portfolio designed to deliver consistent operation and management across the mixed infrastructure.

Extreme binds Enterasys gear tighter to its own

March 31, 2014

Extreme Networks has unveiled a software architecture for building SDNs and enabling interoperability between its technology and that of recent acquisition Enterasys.

SDN changing the shape of networking, IT careers

March 27, 2014

Cisco recently announced new certifications for its Application Centric Infrastructure (ACI) programmable networking initiative, its response to software-defined networking. The certifications are designed to tailor new roles for IT practitioners looking to transition their company’s infrastructures to programmable, application policy driven, SDN-type environments.

5 free Ethernet tools you should check out

March 26, 2014

Nothing in life is free – except some tools to help you manage and improve the performance of your Ethernet networks. Here are five we found to do just that:

Arista bulks up on 100G

March 26, 2014

Arista Networks today announced two new 100G Ethernet modules for its spine/core switch that provide more connectivity options for users.

Dell unveils fabric switch, SDN controller

March 25, 2014

Dell this week rolled out products designed to help customers build and scale cloud environments.