New Design Boosts 10 GbE Densities

Arthur Cole

Switch port densities for 10 GbE equipment is set to reach new heights, even as power consumption continues to drop, now that OEMs have access to a new generation of chip-level solutions that can utilize smaller copper architectures.


NetXen announced this week that it has completed interoperability testing of its NX3-20GCU line of adapters and switches using twinax copper cabling up to 10 meters, according to MarketWatch. The testing involved switch, cable and physical layer technologies from AMCC, Amphenol, Aristra Networks, Cisco and others.


Twinax is a form of hot-pluggable cable that has a smaller footprint and thickness and requires less power than the commonly used CX4 cable. Use of twinax should allow vendors to increase the port density on switch and adapter products, allowing enterprises to boost network capacities to levels demanded by increasingly virtualized data center architectures.


NetXen said the tests showed that the twinax cable was capable of holding bit error rates below the 10-12 required by the Small Form Factor Pluggable (SFP+) standard as defined by the SFF Committee, which should make it relatively easy to incorporate the new design into existing devices.

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