News
JANET Network successfully completes second 100gbit/s
100Gbit/s trial now conducted within an operational environment
25 MARCH 2010: Following the completion of a successful network trial last year, a second trial has just been completed of 100Gbit/s optical transmission circuit operation over the JANET core network, a private research and educational network.
As requirements for network capacity continue to grow, 100Gbit/s circuit technology will play an important role in underpinning the requirements of providing a scalable and reliable JANET network service. It is therefore important that JANET(UK) is fully prepared to exploit this technology at the earliest opportunity.
This latest trial was conducted in partnership with Verizon Business and Ciena using Ciena's first generation 100Gbit/s optical transmission product. The trial took place over a live operational section of the JANET backbone between the Reading and Bristol network Points of Presence, with a 100Gbit/s wavelength injected into the fibre as an alien wavelength alongside wavelengths carrying operational traffic.
Verizon Business is the supplier and operator of the JANET backbone optical transmission network and the network is constructed using Nortel and Ciena optical equipment. Last year's 100Gbit/s trial was conducted using Nortel transmission equipment on an isolated fibre pair, away from fibre carrying live JANET operational traffic. This latest trial not only looked at the100Gbit/s development from the Ciena equipment that is used to build the JANET optical transmission infrastructure, the trial also tested 100Gbit/s technology in an operational environment.
During the trial, data was delivered over a single wavelength with an actual line rate of 112 Gbps; a true 100Gbps payload is delivered within an OTN frame. The full C-band tunable transceiver used in this trial was a CN 4200® RS FlexSelectTM Advanced Services Platform and uses dual polarization RZ-DQPSK modulation, allowing for deployment alongside 10G and 40G channels on existing DWDM systems.
"By conducting these types of trials over the network at this early stage, we will be in a perfect position to address any future requirements whilst providing a robust, flexible and scaleable network for our customers," says Jeremy Sharp, Head of Strategic Technologies at JANET(UK).
