The HyperTransport Technology Consortium, of which Apple is a member, was founded to develop, promote and manage specifications of the HyperTransport I/O link. The group today announced new networking extensions to address the “high-performance” demands of networking and telecommunication applications.
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HyperTransport complements externally visible bus standards like the Peripheral Component Interconnect (PCI), as well as emerging technologies like InfiniBand and 10GB Ethernet. Although initially developed for high-performance personal computer and server platforms, the technology is also gaining momentum in networking and communications devices, embedded applications and other non-personal computer devices. Multiple products integrating support for HyperTransport technology are in development to support desktop and notebook computers, workstations and servers and Internet communication devices.
The new HyperTransport networking extensions are designed to ensure interoperability with existing HyperTransport products and complement externally visible bus standards like PCI, as well as emerging technologies like InfiniBand and Gigabit Ethernet. The HyperTransport networking extensions were developed by the consortium’s Technical Working Group to enhance control plane, data plane and look aside applications. The new networking features include: a message passing protocol for larger packet sizes, an error recovery protocol, support for 64-bit addresses, 16 additional streaming and dedicated virtual channels, greatly increased concurrency support, a standardized HyperTransport switching function and direct peer-to-peer transfer.
“These newly added networking extensions reduce complexity, increase efficiency and enhance the overall functionality of HyperTransport I/O specification,” said Brian Holden, chairperson of the HyperTransport Technology Consortium Technical Working Group and principal engineer for PMC-Sierra’s MIPS Processor Division.
According to the HyperTransport Technology Consortium, key networking enhancements include:
For more info on HyperTransport see our July 30, Aug. 6, and Aug. 8 articles.