The 7000 series consists of stackable Layer 3 Gigabit Ethernet switches in a variety of configurations with 24 or 48 ports. The 7000 line does not replace the PowerConnect 6000 line, which has been on the market since 2004, but brings in new features that some enterprises need in edge, aggregation and data-center top-of-rack switches, said Larry Hart, senior director of network marketing.

Dell accounted for only about 1 percent of global Ethernet switch revenue in 2010, according to research company Dell'Oro Group. But the company is focused on being a full-line supplier of IT gear even as rivals such as Cisco and Hewlett-Packard extend their own lineups to span enterprises. In this rivalry, Dell claims as its selling point the ability to build a complete infrastructure that can accommodate products from a variety of vendors.

Though the 6000 line was based on Gigabit Ethernet, Ethernet and related technologies have seen many advances in the past several years. Dell took advantage of these in the new set of six switches. They meet the IEEE 802.3az Energy Efficient Ethernet standard, which reduces power consumption through techniques such as putting individual ports into sleep mode during periods of low traffic, Hart said. This can cut per-port power consumption by as much as 50 percent, according to Dell.

Dell is also including both 24-port and 48-port switches in the line with IEEE 802.3at Power over Ethernet+, a standard for delivering as much as 30 watts of power over Ethernet cables. This technology can power devices including robotic surveillance cameras, video phones and dual-band Wi-Fi access points, without the need for separate cables, Hart said.

Versions of the 7000 switches designed for enterprise data centers come with an auto-configuration utility for iSCSI (Internet Small Computer System Interface), which allows administrators to set up iSCSI arrays using Dell EqualLogic products with just one click.