Extreme switch hits 10G, adds mgmt.

Extreme Networks this week is expected to launch BlackDiamond 10K, a 10G Ethernet LAN switch that actually runs at 10G bit/sec, as opposed to the company's previous generation of switches, which topped out at 8G bit/sec.

The company also is claiming the highest 10G density in the industry.

The bandwidth boost also comes with major changes to Extreme's switch software and management architecture. At the heart of the switch is a new operating system designed to give Extreme-based networks the ability to stop attacks and even execute automated switch-to-server communications that could improve efficiency in areas such as voice-over-IP and virtual data-center provisioning, Extreme says.

The BlackDiamond 10K brings Extreme's core switch offering up to snuff with competitors Cisco, Enterasys Networks, Force10 Networks and Foundry Networks - all of which this year announced products that provide non-blocking 10G Ethernet connectivity. Extreme's switch is an eight-slot chassis with line cards available with 60 ports of 1000Base-T Ethernet or six ports of 10G Ethernet. The box can handle up to 48 10G ports and has a 1.6T bit/sec total switching capacity.

The BlackDiamond 10K is what one user was waiting for.

"I was getting a little concerned about what was going on at Extreme in June," says Robert Jacobs, director of network services for Phonoscope, a metropolitan Ethernet service provider in Houston. "Cisco had its [next-generation] Catalyst 6509 out at that time, while Extreme's still wasn't out."

Phonoscope uses older Extreme BlackDiamond switches in its core network, which serves several hundred customers with dark fiber-based Gigabit Ethernet metropolitan-area network links. He says that while Extreme had offered 10G Ethernet on the old platform, he wasn't interested in paying 10G prices for only 80% of the bandwidth.

"Until now, it's been cheaper for me to light single-Gigabit fiber pairs and bond the links together to make backbone trunks," Jacobs says.

Phonoscope will install four BlackDiamond 10Ks this month, and will replace all of its trunked 4G bit/sec backbone links with 10G bit/sec Ethernet.

The BlackDiamond 10K comes with a new operating system called Extreme XOS. The architecture is different from Extreme's old ExtremeWare software, or any other vendor's architecture, in that it is based on open source Unix software that resides on a flash memory card and runs in RAM on the switch's management module.

With this base Unix operating system, Extreme says network services, protocols and features - such as Rapid Spanning Tree, Multi-protocol Label Switching and IPv6 - can be installed and deactivated without taking down the switch. Because these services run as separate software modules instead of being part of a monolithic piece of firmware code, the failure of one module won't cause the entire switch to go down, Extreme says.