UNINETT checks out low-jitter Ethernet technology from TransPacket

UNINETT AS, the public interest company responsible for Norway's national research and education network, says it has successfully completed a full year of laboratory and field trials using network nodes equipped with TransPacket’s H1 add-drop Ethernet muxponder.

UNINETT AS, the public interest company responsible for Norway's national research and education network, says it has successfully completed a full year of laboratory and field trials using network nodes equipped with TransPacket’s H1 add-drop Ethernet muxponder.

Norwegian startup TransPacket uses what it calls “Fusion Networking” to increase the capacity of fiber-optic networks by injecting Ethernet packets into underused wavelengths ( see “TransPacket validates performance with Symmetricom”).

The trials carried out by UNINETT demonstrated that wavelength use can be doubled without measurable impact on the traffic transported over the wavelength. TransPacket H1 network nodes were used for 10 Gigabit Ethernet (10GbE) wavelength transport on one of UNINETT’s main transport links running the 600 km between Trondheim and Oslo in Norway. While UNINETT’s traffic was running on the link, additional traffic from generators was added to saturate the link. Measurements showed that the link use could be more than doubled without any measurable impact on UNINETT’s production traffic.

The ultra-low packet-jitter performance of TransPacket’s Ethernet packet transport supported highly demanding services like video transport and mobile-backhaul synchronization, according to UNINETT. The field trials showed Gigabit Ethernet services with what TransPacket asserts was record-low packet jitter of 30 ns aggregated into a 10GbE wavelength saturated with traffic. This capability enables highly accurate IEEE-1588 synchronization in mobile backhaul networks, the company points out.

Results from the field trials were published at this year’s OFC/NFOEC technical conference, both in the regular and post-deadline sessions.

“FUSION H1 solves two main challenges for carriers,” said TransPacket’s CEO, Steinar Bjørnstad. “Operating costs are cut by increasing bandwidth utilization of expensive links. Latency and packet-jitter demanding services earlier needing reserved wavelengths or links are supported by the deterministic Ethernet transport and are ready for deployment.”

For more information on high-speed transmission systems and suppliers, visit the Lightwave Buyer’s Guide.

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