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networkZONE Products for the week of August 17, 2009
PMC-Sierra Says…
Breakthrough Multi-Service Convergence Platform Enables End-to-End OTN Deployment in Carrier Networks
HyPHY family reduces line card variants by 75% and power by 50% with intelligent multi-protocol support for Carrier Ethernet, video, SAN, OTN and SONET/SDH
PMC-Sierra, Inc. has introduced the PM5420 HyPHY 20G and PM5426 HyPHY 10G devices to enable the convergence of high-bandwidth data, video and voice services over Optical Transport Network (ITU-T G.709 OTN) based Metro infrastructures. OTN is the industry's choice as the replacement technology for SONET/SDH, providing optimized transport of IP services. The global transition, however, has been delayed by the need for low-power, cost-effective service gateways with simultaneous protocol support for Carrier Ethernet, video, Storage Area Network (SAN), OTN and SONET/SDH at the network edge. PMC-Sierra's HyPHY products 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 OTN networks. OEMs can now deliver Reconfigurable Optical Add-Drop Multiplexer (ROADM), Optical Transport Platform (OTP) and Micro OTP (u-OTP) equipment that addresses Carriers' technical requirements and reduces operational and capital expenditures.
"With FLASHWAVE 9500's fusion of connection-oriented Ethernet, ROADM and SONET/SDH transport, Fujitsu defined a new category of optical transport equipment, and PMC-Sierra has provided key innovations to enable it," said Rod Naphan, vice president of product and strategic planning at Fujitsu Network Communications. "HyPHY 20G offers advanced mapping and multiplexing capabilities that enable both packet aggregation and scalable transport for more efficient backhaul of Ethernet, SONET/SDH, SAN and video services over OTN on a single platform."
"With significant experience in delivering innovative products to address evolving Carrier network requirements, PMC-Sierra is uniquely positioned to bring OTN to the Metro," said Travis Karr, vice president and general manager of PMC-Sierra's Communication Products Division. "Our HyPHY platform solves the service convergence problem regardless of region or service mix. PMC-Sierra is investing to lead the transition to OTN and WDM with technology that enables cost-effective rollout of IP-services. We are pleased to bring such innovation to the market in collaboration with technology-leading OEMs and Carriers."
Any-Service, Any-Rate, Any-Port Platform for ROADMs, OTPs and u-OTPs
HyPHY 20G delivers high capacity framing, mapping and multiplexing of Carrier Ethernet, SAN, OTN, transparent bit services such as video, and SONET/SDH to allow Carriers to reduce the number of network elements, while incrementally adding bandwidth or changing service mix per node without forklift upgrades. The platform provides client-agnostic, rate-agile Small Form-Factor Pluggable (SFP) and 10 Gigabit pluggable (XFP or SFP+) interfaces and a set of flexible system interfaces for networking to a variety of switch fabric architectures. HyPHY 10G provides a lower density option for optical platforms. The HyPHY family integrates high-performance mixed-signal analog and media access control, along with numerous innovative features, including:
- True per-port rate and protocol flexibility: Independent, rate-agile SERDES for direct connect to SFP, SFP+ and XFP optical modules, reducing cost, power and footprint;
- Multi-Service Muxponder: Single chip add-drop for both OTN and SONET/SDH;
- Efficient Fiber Utilization: First to market with integrated support for sub-ODU1 mapping of GE or other low speed client services; and
- Carrier Ethernet: First to market with integrated support for Timing over Packet (IEEE 1588 and SynchE) and Ethernet Link OAM required in mobile backhaul.
OTN Tutorial White Paper Available
"A Tutorial on ITU-T G.709 Optical Transport Networks (OTN)," provides an overview of OTN, with primary emphasis on ITU-T G.709, and discusses various constraints that influenced the development of G.709, its current status in the network, and some factors that will affect its future. The paper is available for download (registration required).
EN-Genius Says…
It’s been predicted for over a decade, but the transition to packet-based carrier networks is finally underway – and PMC’s OTN-capable HyPHY multi-rate/multi-protocol PHYs have arrived at just the right time to help make it happen. They’ve applied their many years of SONET/SDH experience to create single-chip devices that packetize and channelize OTN traffic so it can be switched and groomed using traditional (and inexpensive) packet processors and switch fabrics. The cost savings and incremental upgrades that this enables should make these devices very popular in access applications where OTN technology is expected to gain early traction.
 Actually HyPHY does not just handle IP packets. The SONET/SDH framers, VCAT processing and OTN framing logic embedded in this family of protocol-agnostic devices allow encapsulation of Ethernet, storage, and nearly any other protocol to be transported with low overhead and latency. HyPHY’s interfaces are also rate-agnostic, allowing it to support up to 16 ports of any-service/any rate at up to 4G FC rate per port. This makes it easy to support the legacy SONET/SDH connections that still dominate most networks while making a link-by-link transition to OTN. For example, a HyPHY-equipped OTP could have one of its ports one port supporting GbE, another handling an OC-3 connection, and another running OTN. The low-level granularity that allows these devices to map sub-ODU-1 traffic into ODU-1 streams is ideal for access-oriented applications like this, allowing carriers to make much more efficient use of their access bandwidth.
 Both the 10G and 20G versions of HyPHY have an Interlaken packet interface that makes it easy to bolt on an optional network processor for deeper packet processing (it’s referred to as the Packet Interface). Depending on the silicon you choose to hook up, you’ll get a very cost-effective OTN bridge that also happens to support wire-speed multi-service translation, over-subscription management, encapsulation, MAC-in-MAC encapsulation, L2/L3 processing and other advanced services.
From what I was able to learn, HyPHY also looks like an excellent building block for micro-OTPs that are frequently used as CPE in OTN access applications. Its 100 Gbit/s cross-connect allows it to work directly on dual OTU-2, OC-192, or STM-64 ring connection. HyPHY’s high level of integration and relatively modest power consumption (7 – 10 W for the 10G device and 10 – 15 W for the 20G device) makes it easy to believe PMC’s claims of a 50% BOM cost and power savings over the discrete solutions that were previously available.
 By equipping its HyPHY devices with ports that can be configured at will to support either traditional SONET/SDH or the new OTN protocol, PMC has gone a long way to solving the multi-service convergence issue in the access portion of the network. This allows operators to upgrade their edge aggregation and CPE transport boxes incrementally instead of a costly, disruptive forklift scenario. HyPHY’s programmability also means that a single line card can be used for whatever traffic an OTP or ROADM is required to support – a big cost saver for both equipment manufacturers and network operators.
At $785 and $550 for the 20G and 10G devices, the HyPHY is priced appropriately for an emerging market and still offers savings over less-integrated solutions. This will change as OTN gains momentum and equipment prices begin to edge towards the commodity pricing we see in most packet-oriented equipment. But if PMC can keep the HyPHY’s prices adjusted properly as the market matures so they avoid being priced out of second-generation OTN products by the inevitable knock-off and wannabe silicon that haunts emerging markets, they could own a good chunk of OTN CPE boxes and the line cards in larger OTN access equipment. It’s easy to see how PMC will apply the same technology to next-generation products that support core applications as the OTN standard and the market it serves matures.
The PM5420 HyPHY 20G and PM5426 HyPHY 10G devices are sampling now to select customers in 40mm x 40mm 1517 FCBGA-1517. The PM5420 HyPHY 20 Gbit/s device costs $785 for under 5-k piece lots. The 10 Gbit/s PM5426 HyPHY is priced at $550 in similar volumes.
Product Page PM5426
Product Page PM5420
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