PCIe switches support multicast

26 November 2008 Telecoms, Datacoms, Wireless, IoT

IDT has announced the availability of a new series of PCI Express (PCIe) system interconnect switches that provide high levels of performance, availability and optimal resource utilisation in demanding applications.

The switches, built on a new IDT architecture, are said to be the first in the industry to support multicast and multiroot partitioning.

The new PCIe Gen2-compatible switching solutions provide system architects with flexibility through a partitionable switching architecture, which enables dynamic assignment of PCIe slot and I/O peripherals for on-the-fly resource sharing and load balancing among multiple root complexes. The architecture also provides enhanced system availability and reliability options with advanced failover support. The partitionable architecture also improves power efficiency by reducing power consumption and board space requirements, with a single IDT device replacing multiple discrete switches.

The new IDT switches, built on the new proprietary IDT PCIe switch architecture, are the first in the industry to support multicast.

Multicast capability – which allows any switch port to simultaneously send identical data to two or more switch ports – increases system resource utilisation by decreasing the previously required hardware and software overhead needed to send copies of data in a looped manner. This extension of the PCIe standard ensures consistency in data and table information among multiple host processors and extends the reach of PCIe into emerging computing and communications applications requiring robust data coherency and sharing.

Solutions for high-performance data traffic include a 64-lane and 16-port device, as well as a 48-lane, 12-port device and a 32-lane, 8-port device. Devices for control plane traffic include a 34-lane, 16-port device and a 22-lane, 16-port device.

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