Developers of the Infiniband system-to-system
interconnect will meet to lay out a plan that revs the technology to 100 Gbit/s
and will discuss whether it should move to 5- or 6.25-Gbit/s signaling and
possibly wider links for its next generation. At the same time, engineers
working on the emerging chip-to-chip PCI Express are starting similar
discussions about whether 5- or 6.25-Gbits/s should be their next-generation
signaling rate. Infiniband is primarily being used to cluster servers and
storage systems for high-performance computing apps; PCI Express is aimed at
chip-to-chip links in a broad range of PCs and eventually embedded systems.

For both Infiniband and PCI Express the debate is
essentially whether to simply double their current 2.5 Gbit/s data rate as a
simple, backward-compatible move forward, or to stretch to 6.25 Gbit/s signaling
to get a greater performance boost and leverage an emerging class of 6.25
serializer/deserializer chips. First-generation 2.5 Gbits/s Express chips are
just starting to ship, with first system announcements not expected until this
summer.

Developers of the Infiniband system-to-system
interconnect will meet to lay out a plan that revs the technology to 100 Gbit/s
and will discuss whether it should move to 5- or 6.25-Gbit/s signaling and
possibly wider links for its next generation. At the same time, engineers
working on the emerging chip-to-chip PCI Express are starting similar
discussions about whether 5- or 6.25-Gbits/s should be their next-generation
signaling rate. Infiniband is primarily being used to cluster servers and
storage systems for high-performance computing apps; PCI Express is aimed at
chip-to-chip links in a broad range of PCs and eventually embedded systems.

For both Infiniband and PCI Express the debate is
essentially whether to simply double their current 2.5 Gbit/s data rate as a
simple, backward-compatible move forward, or to stretch to 6.25 Gbit/s signaling
to get a greater performance boost and leverage an emerging class of 6.25
serializer/deserializer chips. First-generation 2.5 Gbits/s Express chips are
just starting to ship, with first system announcements not expected until this
summer.