SFP Series fiftieth Week News Abstract 10

2011-12-08 17:17:19

Week News Abstract For SFP Series in 10GTEK
The abstract is mainly about the optical communication related products,including: FTTH,GPON,EPON,SFPPLC,PTN,ODN,Optical module,Optical devices,optical communications,Optical transceiver module,Etc.

Swisscom restarts FTTH deployment in Basel
Responding to criticism from the Swiss Competition Commission (ComCo), Swisscom has renegotiated its agreement with energy company IWB and will restart the deployment of fiber to the home (FTTH) infrastructure in Basel.Swisscom halted its FTTH work in Basel – as well as in several other Swiss cities – when ComCo ruled that its agreements with local energy providers gave Swisscom too much influence in the determination of how competing service providers might share the resulting networks. Swisscom says that after what it termed “intensive negotiations” with IWB, “certain clauses have been removed and/or amended,” to address ComCo’s concerns. Specifically, clauses related to “investment protection” and Layer 1 exclusivity have been deleted. ComCo has been informed of the amended agreement, and now Swisscom says it is free to begin FTTH deployment again.The method for compensation payments has also been “clarified.” If one partner makes considerably more use of the infrastructure than its share of the investment warrants, the other party will receive compensation. This mechanism will not apply until after completion of the basic expansion in Basel, which is slated for 2018.Swisscom says it will spend more than CHF 100 million for the FTTH expansion.The Swiss national carrier did not comment on any changes to the agreements behind its other suspended FTTH projects.
Brocade routers power 100-Gigabit Ethernet research network
Brocade (NASDAQ: BRCD) says that its MLXe routers are enabling 100-Gigabit Ethernet (100GbE) connectivity at the Janelia Farm Research Campus research facility for the Howard Hughes Medical Institute (HHMI). The Janelia Farm facility performs neuroscience and imaging research.HHMI is a nonprofit medical research organization that focuses on biomedical research and science education in the United States to the tune of approximately $770 million in biomedical research per year. It has an endowment of $14 billion. Its Janelia Farm Research Campus in Ashburn, VA houses more than 250 staff scientists.The application of the MLXe-32 and MLXe-16 routers, which offer 56 ports of 100GbE capacity, has boosted network capacity 10-fold. The routers are connected via Brocade Multi-Chassis Trunk (MCT), which enables network-level virtualization and enhanced network reliability. From the core, Janelia Farm Research Campus link bonds two ports of 100GbE to create a single 200 gigabit logical connection in both directions. The aggregation routers are two fully populated Brocade MLXe-32 routers with more than 2,400 GbE ports and a large subset of 10GbE ports."We have 200-gigabits connections to each of our network wiring closets," said Spartaco Cicerchia, director of network infrastructure systems for the Janelia Farm Research Campus. "Then we have 10GbE connections going directly down to researchers' systems in order to support the massive volumes of data they have collected. This new infrastructure enables our research team to obtain results 10 times faster than before. This performance advantage will allow us to set a new standard for research process cycles."The deployment of the new routers enabled a more simplified network infrastructure. "We were able to reduce the number of routers in our network infrastructure and simultaneously enhance performance," said Cicerchia. "Therefore we completely eliminated a layer of the network and improved our overall efficiency by about 50 percent."
IEEE launches 100G optical Ethernet study group
The Institute of Electrical and Electronics Engineers (IEEE) has initiated a new study group to explore 4x25-Gbps interfaces for 100 Gigabit Ethernet (100GbE) in data center and campus networks. The new interfaces, expected to replace the current 100GBase-SR10 10x10-Gbps standard in time, will enable 100GbE modules that have a higher faceplate density and lower costs.This will require amendments to the physical layer (PHY) capabilities defined in IEEE 802.3 Ethernet standard in 2010. The study group has three main areas of investigation. First is a 4x25G multimode fiber interface that can be used to send data up to 100 m; the second is a 4x25G singlemode fiber interface focused on longer reaches within data centers and campus backbones.The third area of interest is a 4x25G electrical interface between module and system ICs. Having such an interface will eliminate the chip that multiplexes electrical signals from 10 lanes of 10 Gbps to four lanes of 25 Gbps.“The history of optical Ethernet standards has shown that as technology advances, the ability to reduce the number of data channels and thereby the cost, density, and power required to achieve a given speed will lead to greater market adoption,” said Dan Dove, chairman of the IEEE 802.3 Next Generation 100 Gbps Optical Ethernet study group and senior director of technology at Applied Micro. “We believe that it's time to move from a 10x10G interface to a 4x25G interface to achieve the advances the market needs to take 100G Ethernet to the next level.”The emphasis on 4x25 Gbps would appear to put to bed any ideas the Google-inspired 10x10 MSA may have had regarding adding their specifications to the IEEE 802.3 100GbE specification family.Analyst firm LightCounting anticipates there will be rapid adoption of 40G and then 100G uplinks following the broad uptake of 10G server connections over the next three years. Kimball Brown, vice-president and senior datacom analyst at LightCounting, said, "To achieve the kind of market success LightCounting expects for 100G, cost must come down to a level that drives users to upgrade from 40G to 100G uplinks. Further, 100G transceivers must be able to fit into the then familiar QSFP+ form factor (at least for short and long wavelength media types) that users will be comfortable with. LightCounting is happy to see that these benefits will be enabled by the Next Generation 100G study group, making its formation essential."
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