The North West Branch of MegaFon, one of the three largest mobile operators in Russia, has tested a 100G DWDM implementation with Cisco. The tests were conducted based on other vendors’ technologies.
The project was aimed at testing the effectiveness and interworking of Cisco 100G transponders, Cisco ASR 9000 Series Aggregation Services Routers and the Cisco ONS 15454 Multiservice Transport Platform (MSTP) at the distance of 140 and 384 kilometers (87 and 239 miles). Additionally the solutions have been tested over "dark fiber" at 60 and 120 kilometers (37 and 74 miles).
Cisco said its ASR 9000 Series routers were used as the network core, as they had been designed as the foundational baseline for next-generation Carrier Ethernet networks. They provide up to 400 Gbps per system and can be scaled up to 6.4 terabits (Tbps), helping ensure the fail-safe delivery of multifunctional applications.
The 100G services were supported by Cisco DWDM transponders tuned to 192.6 GHz (1556.55 nm). The transponders can operate at a distance well in excess of 2,000 kilometers (1,243 miles) without signal regeneration, and they feature high performance and port density, thus enabling 100G technologies in networks of any complexity. All parameters of the DWDM network were configured automatically by the smart-management subsystem and optical channel power control tools integrated in the Cisco ONS 15454 MSTP platform. During the test the traffic was transferred at 100 Gbps without failure and degradation of existing 10 Gbps services, showing the investment protection on the installed network and existing fiber plant.
The Case for the Big GEs... and IP-over-DWDM
by Sultan Dawood, Solutions Marketing Manager, SP Marketing Cisco Systems No one knows better than the readers of this publication about the importance of Gigabit networks. The emergence of 10 Gigabit (10 G) links in big networks began more than 10 years ago, and seemed like enough capacity, for a long time. But that was then. In today’s optical conversations, talk tends to center on 40/100 Gig links, all the way up to Terabit advancements....
