Extreme Networks 
introduced a 2G-3G-4G mobile backhaul architecture for fiber or microwave and supported with a new family of mobile backhaul routers. The company's E4G mobile backhaul family is highlighted by pseudowire capabilities, 1-10 Gigabit Ethernet scalability, and unique capabilities in next-generation timing as well as carrier-grade resiliency. Specifically, Extreme Networks is offering integrated synchronous Ethernet ITU-G.8262, support for IEEE 1588 Precision Time Protocol, and carrier-class resiliency with support of Ethernet Automatic Protection Switching (EAPS) and ITU-G.8032 resilient packet rings. The architecture leverages MPLS-TP to scale the network, deploy new services and accommodate the anticipated explosion of users and capacity.
ITU-T is developing G.8032 to provide sub-50ms protection and recovery switching for Ethernet traffic in a ring topology and at the same time ensuring that there are no loops formed at the Ethernet layer. Extreme Networks said this could be leveraged in either fiber or microwave rings to ensure resiliency in the mobile backhaul.
The new product families include:
- E4G-200 Cell Site Router -- offering T1/E1 Pseudowire (PWE) support for 2G and 3G backhaul along with full line-rate, standards-based Gigabit Ethernet access to the resilient synchronous Ethernet mobile backhaul network. 4G performance expectations will be met through a dual-processor implementation, while a rich set of features across the T1/E1 interfaces will enable concurrent support for 2G, 3G and 4G mobile backhaul. The Cell Site Router will come in a 1RU form factor, and features extended operating temperature and carrier OAM capabilities in hardware. The ExtremeXOS operating system will deliver Provider Bridging, MPLS-TP, VPLS, EAPS and G.8032 resilient packet rings, G.8262 synchronous Ethernet, IEEE-1588, and IP v4/v6 routing at wire speeds.
- E4G-400 Cell Site Aggregation Router -- the 1RU platform offers 24 GigE ports and an optional 10G uplink. It will provide performance and synchronous Ethernet integrated timing for the most demanding of mobile broadband aggregation requirements.
- PWM-16 T1/E1 module -- it will add support for T1/E1 backhaul in the E4G-400, protecting a mobile operator's investment in 2G and 3G access while taking advantage of resilient synchronous gigabit Ethernet for 4G mobile backhaul.
Extreme Networks E4G products are expected to be available this calendar year. Extreme Networks is working with Motorola Solutions to bring the products to market.
"Motorola Solutions looks to advance the capabilities of microwave backhaul with Extreme Networks next-generation mobile backhaul routers," said Phil Bolt, vice president and general manager, Wireless Network Solutions, Motorola Solutions. "The significant capacity and performance upgrades planned with its new mobile backhaul portfolio offer an opportunity for us to work with Extreme Networks to provide our customers with a flexible, resilient migration from circuit-based to IP networks."
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