Jim DuffyManaging Editor, Network World

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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+

Chipset Provides More Insight Into Network's Physical Layer

This week, a $12 billion maker of network connectors and panels will unveil a chipset to provide greater security and visibility in data center networks.

Cisco Urged to Fold More Than Flip

Flip shouldn't be Cisco's only fold in the challenging consumer market, industry watchers say.

What Should a Revamped Cisco Look Like?

In his internal company memo this week that promised sweeping changes, Cisco CEO John Chambers asked employees, "What do you want Cisco to be?"

IETF's April Fools' Gags Geekier Than Ever in 2011

The IETF is up to its usual April Fools' Day tricks, publishing bogus requests for comment (RFC) on its website Friday for addressing serious IP challenges.

Industry Split on Data Center Network Standards

Despite competing standards and proprietary alternatives already on the market, the IETF insists that TRILL is gaining momentum as a method for solving Ethernet scalability problems in data center networks.

Brocade Unites IPv4 and IPv6

Brocade this week unveiled software for its application acceleration switches that enables them to function as gateways between existing IPv4 networks and new ones built on IPv6.

Cisco Fights For 'Share of SMB Pie' With Unified Communications Gear

Cisco unveiled two unified communications products optimized for small and midsize businesses.

Cisco Revenues Push to $10.4 Billion in Q2

Cisco beat analyst estimates with its second-quarter earnings, posting revenue of US$10.4 billion and earnings per share, excluding expenses, charges and other...

Egypt Restores Links to Internet

The Internet has returned to Egypt.

Egypt: Anatomy of an Internet Blackout

No announcement occurred; instead, 3500 Internet routes suddenly vanished.

Gartner Slams Cisco's Single-Vendor Network Vision

Businesses are better off with multivendor networks, no matter what Cisco and other large network vendors may tell you.

HP's Green Switch Modules Support Energy Efficient Ethernet

HP this week refreshed its high-end chassis Ethernet switches with modules that conform to the IEEE's Energy Efficient Ethernet standard for reducing power.

IT Spending to Rise as Much as 6 Percent in 2011

IT spending may grow by almost 6 percent next year due to cloud computing, mobile networking and social media, according to market researcher IDC.