PMC-Sierra intros IP over OTN chip for packet and optical metro convergence applications Lightwave
New Chipset Solution for Integration of OTN Across Metro Networks
Carriers worldwide are transitioning their networks to Optical Transport Network technology (OTN) for optimized transport of IP services. PMC-Sierra’s new OTN product family provides a chipset solution for end-to-end integration of OTN across metro networks and enables OEMs to standardize their hardware and software around a single platform for carrier router, switch and transport equipment.
The PM5420 HyPHY 20G and PM5426 HyPHY 10G devices enable simultaneous protocol support for Carrier Ethernet, video, Storage Area Network (SAN), OTN and SONET/SDH in Packet Optical Transport Platforms (P-OTPs) and Multi-Service Provisioning Platforms (MSPPs). The devices can reduce line card variants by 75 percent, achieve 50 percent power savings and deliver multi-service aggregation flexibility to accelerate the transition to IP-optimized networks.
The PM5422 META 20G enables Carrier Ethernet Switch and Router (CESR) equipment to seamlessly connect to the metro OTN. The device integrates Carrier Ethernet mapping and framing of 10GE LAN and WAN, and OTN mapping of IP-services, such as SAN and video protocols, while maintaining support for deployed technologies like Packet over SONET/SDH (POS).
A Tutorial on ITU-T G.709 Optical Transport Networks
The SONET/SDH network that has grown to be the backbone of most modern telecommunications networks was originally designed for optical interfaces that used a single wavelength per fiber. As optical component technology advanced, it has become more economical to transmit multiple SONET/SDH signals over the same fiber using wavelength division multiplexing (WDM) instead of going to a higher rate SONET/SDH signal. Based on experience with the SONET/SDH networks, the ITU-T defined a new transport network that was optimized for cost-effective transparent transport of a variety of client signals over WDM networks. This white paper provides a tutorial overview of OTN, with primary emphasis on ITU-T G.709. It also discusses various constraints that influenced the development of G.709, its current status in the network, and some factors that will affect its future. >>Download. Registration Required.
Transporting Sub-ODU1 Rate Signals in the OTN
The OTN brings the potential for a simplified transparent transport network that can ultimately replace SONET/SDH at Layer 1. In order to do this, however, the OTN must be capable of carrying a number of other important protocols, including GE and SONET/SDH, and emerging client signals with sub-ODU1 rates, including SAN and native video signals. This white paper summarizes the different approaches that have been considered for transporting sub-ODU1 client signals. While one approach, the ODU0, has been standardized by the ITU-T, it will be many years before ODU0 support is available in the OTN. The need exists for alternative methods that can be deployed in the meantime, and also to support important long term applications. This paper describes the alternatives for sub-ODU1 rate client signal transport, and the applications for each. >>Download. Registration Required.
Requirements for Next Generation Rate-Agile SERDES
Existing and emerging requirements for next generation rate-agile Serializer/De-serializer (SERDES) designs are forcing system designers to re-examine their SERDES vendors’ designs. This document outlines and discusses the requirements that system designers should consider when choosing a SERDES vendor. >>Download. Registration Required.
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PMC-Sierra (NASDAQ:PMCS), the premier Internet infrastructure semiconductor solution provider, offers its customers technical and sales support worldwide through a network of offices in North America, Europe, Israel, and Asia. PMC-Sierra provides semiconductor solutions for Enterprise Storage, Wide Area Network Infrastructure, Fiber To The Home, and Laser Printer/SMB NAS markets.