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| Matisse Networks' EtherBurst Optical Switch  Matisse Networks has announced availability of the EtherBurst optical switch consisting of the SX-1000 Ethernet Service Node, the PX-1000 Photonic Node and the MatisseView management system. EtherBurst is the industry’s first optical burst switch, purpose-built for scaling metropolitan aggregation networks from 10 to 640 Gbps. EtherBurst seamlessly integrates the any-to-any flexibility of Ethernet switching with the enormous bandwidth of dense wave division multiplexing (DWDM), resulting in substantial reductions in capital and operating expenditures. Applications for EtherBurst include IPTV and business Ethernet services offered by service-providers, and private campus networks deployed by businesses, universities and government agencies.To overcome Ethernet’s current limitation of 10 Gbps in metro aggregation applications, metro networks are built by layering Ethernet over DWDM systems, which rely on pre-provisioned point-to-point optical circuits. This architecture suffers from a fundamental problem that arises where packet-switched services meet the circuit-based fiber optic transport. Overcoming the inherent discontinuity at this juncture of packets and circuits imposes considerable complexity in the network’s design. The resulting inefficiencies waste network capacity, place severe limits on scalability, and substantially increase overall costs. OBS employs optical burst transponders that switch packet traffic in bursts at different wavelengths. The optical burst transponder’s ability to communicate on any wavelength with every other transponder in the resilient metro ring topology gives EtherBurst any-to-any Ethernet connectivity, which eliminates the packet-circuit discontinuity encountered with DWDM and ROADM systems. The Matisse Networks’ patented 10 Gbps "Tango" optical burst transponder is capable of tuning to any wavelength in the ITU C-band in nanoseconds. Burst scheduling, collision avoidance and quality of service (802.1 p and DiffServ) enforcement are provided by Matisse Network’s patented MeshWave packet processor. Two systems - the SX-1000 Ethernet Service Node and the PX-1000 Photonic Node - constitute the NEBS-compliant EtherBurst optical switch. The SX-1000 Ethernet Service Nodes support up to 48 Gigabit Ethernet (GbE) or four 10 Gbps Ethernet (10 GbE) interfaces, along with one or two OBS interface modules (known as TAPs) containing the Tango and MeshWave technologies. The PX-1000 Photonic Nodes provide the fully-automated, all-optical photonic layer. Up to 32 SX-1000’s, each with two 10 Gbps TAP interface modules, can be attached to the dual ring photonic layer, yielding a total network capacity of 640 Gbps. The EtherBurst optical switch was designed to leverage the architectural advantages of OBS with its fully automated photonic layer affording plug-and-play deployment and operation in a resilient network that transparently accommodates volatile metro traffic patterns. The result is a dramatic improvement in metro-scale price/performance based on the substantial decrease in both capital and operational expenditures. write your comments about the article :: © 2006 Networking News :: home page |