It's Not Easy Being Green: Who Has The Greenest Switches?

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The In-Stat study rated similarly equipped Gigabit Ethernet fixed managed Layer 2 and Layer 3 switches -- both 24- and 48-port varieties -- to determine which performed the most efficiently based on fabric capacity (Gbps) per watt.

Here are how some of the top switch vendors ranked and how they responded.

Cisco Systems

Cisco Systems ranked dead last in the 48-port category with less than one half GBPS per watt and next to last in the 24-port category with similar numbers. But the San Jose, Calif.-based vendor said the study painted an inaccurate picture.

"We're not comparing apples to apples here," said Cisco director of access routing and switching Inbar Lasser-Raab of the study, pointing instead to a recent announcement by Miercom that it's launching its own form of green certification for networking switches and has named the Cisco Catalyst switching portfolio the first member of the green team.

Shown here is Cisco's Catalyst 3750-E

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