Jim DuffyManaging Editor, NetworkWorld Follow me on Google+

Jim Duffy has been covering technology for over 28 years, 23 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 jduffy@nww.com.Google+

Cisco Broadens Data Center Role

Cisco launched new software designed to expand the capabilities of its switches and routers in virtualizing data center systems.

Internet Traffic Growth Slows

International Internet capacity continues to grow faster than traffic say researchers for TeleGeography.

CIOs Lack the "Green" to Go Green

Three-quarters of executives queried do not have a committed budget for a greening policy.

Look Out, Cisco: Here Comes Brocade/Foundry

$3 billion deal raises stakes in Ethernet switching market.

Depite Challenges, Extreme Networks Remains Focused

Extreme doesn�t share bigger, broader ambitions of Ethernet competitors such as Cisco, Juniper.

Cisco Exec Shares Virtualization Vision

Data center chief John McCool says Cisco's Catalyst 6500 will play a key role.