Showing posts with label Metro. Show all posts
Showing posts with label Metro. Show all posts

Tuesday, December 3, 2013

Bell Labs Forecasts 560% Growth in Metro Traffic by 2017

Data traffic on metro access and aggregation networks is set to increase by 560 percent by 2017, according to a new study by Alcatel-Lucent's Bell Labs.  The researchers predict that by 2017 more than 75 percent of that traffic will stay in metro networks, as compared to 57 percent today.

Some highlight of the "Metro Network Traffic Growth: An Architecture Impact Study”:

  • Traffic from video services will skyrocket by as much as 720 percent by 2017.
  • Cloud and data center traffic - consumer connections to data centers and interconnection between data centers - will increase more than 440 percent by 2017.
  • Combined, video and data center traffic are the key drivers to the overall forecast increase of 560 percent traffic growth in the metro.
  • Total Metro traffic will grow approximately two times faster than traffic going into the backbone network by 2017.
  • By 2017, 75 percent of total traffic will terminate within the metro network and 25 percent of traffic will traverse the backbone network as video, data and web content is increasingly sourced from within metro networks.

The 12-page paper is online.

http://resources.alcatel-lucent.com/asset/171568

Wednesday, November 6, 2013

tw telecom Expands Metro and Regional Fiber Network into New Markets

tw telecom announced a multi-market expansion of its metro and regional fiber network into five new markets across the U.S.:  Boston, Cleveland, Salt Lake City, Philadelphia and Richmond.

The expansion increases its addressable market by expanding its metro fiber footprint approximately 17%.  tw telecom will also increase the density of its metro-fiber footprint in 27 existing markets.

"Our multi-market expansion will leverage our proven investment model, national network, Ethernet leadership and our powerful and scalable integrated nationwide platform to rapidly rollout products and services across our expanding footprint," said Larissa Herda, tw telecom's Chairman, CEO and President.

"Expanding our fiber infrastructure will allow us to build on our nationwide network by increasing our addressable market, extending our regional connectivity, and strengthening key corridors of commerce for our existing operations," said John Blount, tw telecom's Chief Operating Officer. "By accelerating the expansion of our existing markets using our established operational teams and infrastructure, as well as entering new cities where our customers already have networking needs, this expansion gives us quick access to current demand and an accelerated path to greater revenue opportunities."

http://www.twtelecom.com

Thursday, October 3, 2013

Fujitsu Intros New FLASHWAVE Ethernet Services Platforms

Fujitsu continues to expand its Ethernet Services Platform with the introduction of FLASHWAVE 5310 and FLASHWAVE 5320 systems designed for low-cost delivery of Ethernet Private Line (EPL), Ethernet Virtual Private Line (EVPL) and Ethernet LAN-based services for business and mobile backhaul applications.

Fujitsu said its new Ethernet Services Platforms are engineered to deliver an affordable and seamless path for high performance, standards-based Carrier Ethernet service into metro, enterprise and mobile networks.

The FLASHWAVE 5310 Ethernet Services Platform is a compact, multiservice, carrier-grade system that delivers both Ethernet and TDM-based connectivity. Its small form factor, temperature resilience, and low power consumption make it suitable for installation at wireless towers or customer premises. It features integrated support for both Ethernet and TDM via emulation of T1/E1 and SONET/SDH channelized OC-3/STM-1 circuits. The FLASHWAVE 5310 product provides Ethernet service scalability from 1Mbps to 1Gbps, and 1-16 T1-E1s.  It  also features dedicated hardware for traffic performance monitoring and for MAC address swapping.

The FLASHWAVE 5320 platform delivers Carrier Ethernet aggregation through the access network directly to customer premises. It can be used for extending Ethernet, IP and cloud services to metro areas such as business parks, multi-tenant buildings, cell towers and Wi-Fi hotspots. The FLASHWAVE 5320 product provides 24xSFP and 2xXFP ports with MEF-standards based Carrier Ethernet service scalability from 1MBps to 10Gbps with highly reliable service delivery and G.8032 sub 50ms ring protection. It also features dedicated hardware for traffic performance monitoring.

"With the launch of the FLASHWAVE 5310 and 5320 platforms, service providers can deploy low-cost, protocol-rich Carrier Ethernet solutions into metro, enterprise and mobile networks with confidence,” said Rod Naphan, Senior Vice President, Planning, Fujitsu Network Communications. “Fujitsu continues to develop flexible, comprehensive, standards-based hardware and software to keep networks running and growing as they evolve with changing bandwidth needs.”

http://www.fujitsu.com/us/news/pr/fnc_20131003.html


Thursday, June 27, 2013

tw telecom Launches 40G and 100G Business Ethernet

tw telecom officially launched metro 40G and 100G Business Ethernet services in its 75 metro serving areas. The faster speeds complement its current 2.5G and 10G intra-market Ethernet services.  

"The addition of these faster speeds will enable enterprises to more efficiently and effectively connect headquarters, remote offices and data center locations across the metro for a variety of Big Data applications," said Graham Taylor, Senior Vice President for Marketing at tw telecom. "We build our gigabit Business Ethernet services in direct, point-to-point connections so the infrastructure remains highly efficient; enabling customers to get massive transmission speeds to deploy their equipment and solution anyway they need."

http://www.twtelecom.com


  • tw telecom is one of the top three providers of Business Ethernet throughout the U.S., according to leading industry analysts Vertical Systems Group and Frost & Sullivan. 

Monday, March 4, 2013

Xtera Adds 100G OTN Switching to Transport Platform

Xtera Communications introduced OTN switching capabilities on its 100G optical networking platform.

The Xtera Nu-Wave Optima now offers a stand-alone or integrated switching and transport solution.  Benefits include scalable transport and switching capacity, efficient capacity utilization in backbone networks, high manageability on per service and per wavelength basis, fast service provisioning, quick failure protection, and policy-based restoration.  The switching capacity is 2.4 Tb/s per shelf, upgradable in a hitless way to 21.6-Tb/s capacity in a single-stage switch fabric.

"By introducing OTN switching to our best in class 100G and optical amplification technologies, Xtera positions itself as the supplier of choice for optical networking solutions offering capacity efficiency, resiliency and flexibility to handle any type of services for maximizing the revenues of the service providers,” said Philippe Perrier, SVP, Product Line Manager Long-Haul Optical Transport of Xtera.  “With an innovative design for the core of our OTN switch allowing a maximum switching capacity in excess of several hundreds of Tb/s, Xtera confirms again its technical leadership by introducing new technologies and industry-leading capacity and flexibility."

http://www.xtera.com

Wednesday, February 13, 2013

Optelian Launches 100G Muxponder/Transponder

Optelian introduced a flexible 100G platform that can be configurable either as a muxponder or transponder,

The new MPX-9110, which is packaged in a 1RU box, can aggregate and transport any mix of 10 Gbps, 40 Gbps and 100 Gbps services over a 100G OTN DWDM wavelength.

"Internet usage, driven by bandwidth-intensive video streaming and enhanced user connectivity via multiple devices, will surge in the coming years. Operators need innovative ways to leverage their existing infrastructure while increasing capacity,” remarks Optelian’s CEO, David Weymouth. “Our analysis indicates 100G offers a 30% cost-per-bit savings relative to 10G transport strategies. Optelian’s solution enables efficient scalability and supports the rapid deployment and management of new, revenue-generating services.”

Some key features:

  • Network flexibility – 10/40 Gbps muxponder and 100 Gbps transponder in one device
  • Service aggregation options – 10x10 Gbps, 1x40 Gbps + 6x10 Gbps, 2 x 40 Gbps + 2 x 10Gbps
  • Client support – 10/40/100 GbE, OC-192/STM-64, 8/10G FC, OTU2/3/4
  • Best optical reach - DP-QPSK DWDM line interface with coherent optical receiver plus FEC
  • Standalone design – Service delivery, management and OSC in a compact 1RU form factor.

http://www.optelian.com



Thursday, December 6, 2012

Blueprint: The Transport Network Challenge

by Scott Wakelin, Product Line Manager in PMC-Sierra’s Communication Products Division

Optical network operators worldwide are faced with a tremendous challenge – expanding their networks to keep up with massive traffic growth and doing so profitably.

In 2012, Cisco’s Visual Networking Index (VNI) projected network traffic would quadruple between 2011 and 2016 to 1.3 zettabytes or 1.3 trillion Gigabytes annually. Video will continue to grow and eventually consume a 55% share of network traffic. Likewise, mobile traffic will grow 18x, driven by the transition to HSPA+, LTE, and LTE-Advanced.

Market research firms project that by 2015, optical spending will increase 25% over the $12B spent in 2010 as carriers prepare to build out their metro and access networks to deal with the massive increase in Ethernet and packet traffic.  

What will the new metro network look like and what capabilities will be required?

Before exploring these questions, let’s review the architecture of today’s typical carrier network.

Today’s Carrier Network


In the access network, TDM services (T1/E1 private line, ISDN, voice, 2G wireless) dominated until only recently. The last few years have seen dramatic changes in the access service landscape with Ethernet replacing T1/E1 for both enterprise and mobile access. At the same time, demand for native Video and Storage Area Network (SAN) transport has accelerated, adding to the service mix that carriers must support.

Meanwhile, outside of China, Layer 1 transport in the metro continues to be largely SONET/SDH based. Today, carriers aggregate client traffic into SONET/SDH (generally at 10G). The resulting OC-192/STM-64 signal is then fed into a transponder which converts the 10G client signal into a 10G wavelength using first generation OTN (ITU-T G.709 Optical Transport Network) equipment. At this point, the signal is ready for transport over the ROADM based DWDM infrastructure.

The access transition to Ethernet coupled with exploding bandwidth demands has exposed three fundamental weaknesses of SONET/SDH based Layer 1 aggregation, which fundamentally limits the ability of carriers to scale their metro networks:

  1. Fixed switching granularities which are only a fraction of the 10G line rate
  2. Inefficient support for Ethernet without the use of VCAT
  3. Little deployment beyond 10G and no roadmap beyond 40G
As a result of these challenges, carriers are preparing to deploy a new metro network. The next section explores the coming Metro Transport Network evolution.

 The New Metro Network

In order to scale their metro networks to handle the growth in access traffic, carriers seek a network technology that:

  • Supports the full range of protocols that exist in the metro, including Ethernet, SONET/SDH, SAN, and Video, without the use of Circuit Emulation or Pseudo-wire emulation techniques,
  • Supports efficient transport of packet services such as Ethernet
  • Is able to scale to 100G and beyond,
  • Offers a simple to manage Layer 1 network that extends end-to-end.
Today, carriers have broadly deployed OTN as the basis for their DWDM core networks and it has proven an effective technology in providing both the management, protection, and reach extension required in the core network.  The desire for continuity at layer 1 between the core and metro networks made OTN a primary candidate for the Metro transport network as well.  However, OTN technology, as originally deployed in the core, fell short in terms of efficiency of Ethernet transport, and switchability.  Nevertheless, the G.709 standard has evolved to become a highly efficient transport technology for Metro applications, with the result that OTN is the nearly unanimous choice of carriers globally to base their Metro networks.

PMC refers to this evolved OTN technology as Metro OTN.

Metro OTN

Let’s look more closely at how well OTN meets the needs of the new Metro network. 

Multi-Service Transport

Metro OTN provides standards-based methods to enable full bit and timing transparent transport of Ethernet (1GE, 10GE, 40GE, or 100GE) – which is critical for the growing Ethernet private line services market. In addition, OTN also supports GFP-F mapping of packet based services such as:
  • MAC terminated Ethernet
  • IP/MPLS
  • MPLS-TP
By virtue of this capability, and when coupled with Carrier Ethernet features such as IEEE 1588v2 (Precision Time Protocol) and Synchronous Ethernet, OTN is ideally suited for the quickly growing mobile backhaul market. 

Now, Ethernet is not the only client in the metro. SAN services such as Fiber channel and Infiniband are commonly used for datacenter to datacenter interconnect. Uncompressed HD and SD video streams are increasingly used in video contribution networks due to their superior quality and low latency. Prior to OTN, these bit and timing transparent services would generally be transported directly over DWDM but did so at the expense of reduced or no manageability. OTN provides the bit transparent transport these services require coupled with enhanced end-to-end OAM that includes 6 layers of Tandem Connection Monitoring (vs. the single layer offered by SONET/SDH).

Furthermore, there remains a tremendous installed base of SONET/SDH with new deployments still expected for at least the next 5 years. OTN was designed to accommodate both asynchronous and synchronous mapping of OC48/STM-16 and OC192/STM-64 clients. In this manner, OTN can provide the means for the bit and timing transparent transport of SONET/SDH, whether point to point or ring based – and importantly, without the need for PWE3 or CES.

 Efficient Resource Utilization

The efficiency issues associated with transporting Ethernet over SONET/SDH are well known. But even 1st generation OTN suffered from efficiency issues. Take for instance a GE to be transported over an OTU2 operating at 10 Gbps. First generation OTN equipment either:
  1. did not support this capability,
  2. did not support it efficiently, or
  3. did not support it in an interoperable manner
In contrast, Metro OTN naturally supports Ethernet, and unlike SONET/SDH does so with a single ODU container to provision, switch and manage. This greatly simplifies provisioning and management, ultimately leading to reduced OPEX. Furthermore, as Ethernet scales in the future, so will OTN.


With the development of Metro OTN, carriers can now efficiently map GE into the new ODU0 container operating at 1.25G – right sized for GE. The GE may be mapped in a bit and timing transparent manner for private line service, or may be MAC terminated for managed service delivery. Figure 6 illustrates that in comparison to 1st generation OTN, Metro OTN will double the efficiency of GE transport.

Figure 6 also illustrates how the new variable rate ODUflex container drives efficiency gains for other common metro access clients. Take for instance 3G-SDI. In 1st Generation OTN equipment, this video client was at best 30% efficient when transported using a 10G ODU2 signal. ODUflex enables a container to be assigned that closely matches the client rate. ODUflex can also be used to transport subrate 10GE signals, which has the power to open up new private line service options for enterprises and revenue streams for carriers, while at the same time allowing the carrier to efficiently use its fiber resources. Furthermore, each ODU container contains all of the OAM flexibility that OTN is known for.


The new ODU0 and ODUflex containers are also switchable. Let’s explore the final aspect of Metro OTN: the support for flexible, granular and distributed OTN switching.

Flexible, Granular and Distributed OTN Switching

The vast majority of access services are sub-10G, with GE the access currency of choice for broadband and enterprise access. At the same time, the metro network is generally built around 10G wavelengths, with carriers preparing for broad deployment of 40 and 100G wavelengths in the metro. As a result, the gap between client rate and wavelength bandwidth is increasing.

In recognition of this trend, early OTN deployments were based on muxponders which multiplex client signals into a single outgoing OTU2, OTU3, or OTU4 as shown in figure 5.

Muxponder based compact metro access solutions are ideal for aggregation of mobile, broadband, and enterprise services, and are a growing trend among equipment vendors and carriers alike. In a fiber-rich access network, muxponders can cost-effectively provide bit and timing transparent mapping of SONET/SDH, Ethernet, SAN, and Video into grey or colored OTN signals.

However, when used in multi-slot / multi-wavelength systems deeper in the metro and the core, muxponders and transponders can lead to inefficient wavelength utilization as a full wavelength must be assigned regardless of the total client bandwidth. Client Add / Drop and Continue is also hindered by the inflexible nature of Muxponder/Transponder architectures. Only clients that are physically connected to a particular board can be mapped into that boards specific outgoing wavelength. This leads to a more complicated service provisioning and management model. For example, if a client needs be moved from one muxponder to another (in order to be transmitted on a different wavelength), human intervention is required. This inflexibility leads to increased OPEX for the carrier.



Metro OTN addresses these challenges through the deployment of OTN switching systems.

In comparison to muxponders, the benefits of OTN switching include:
  • Efficient grooming of any sub-wavelength client onto any outgoing lambda,
  • Maximum wavelength utilization
  • The ability to switch an ODU from any outgoing line interface to any outgoing line interface
  • The ability deploy remote management, eliminating the need for manual patching,
  • Separation of client and line optic interfaces, which enables a carrier to deploy 100G wavelengths as traffic dictates

Unlike SONET/SDH, OTN imposes no limitations on switching granularity. All ODUs may be switched between any ingress and egress line card through a cell, TDM, or off-the-shelf packet fabric using the new OIF OTN over Packet Fabric format.

The deployment of an OTN switching system in the metro is a critical requirement if carriers are to achieve the most efficient use of their network resources at the lowest possible OPEX.  

Silicon Impact of Metro OTN

Just as the metro transport evolution is driving new requirements for OTN equipment vendors, Metro OTN also drives new requirements for silicon vendors. No longer is a simple implementation of G.709 sufficient. The following fundamental features are also required:

  • Any-Service, Any-Port, Any-Rate SERDES and mappers  in order to deliver true multiservice capabilities,
  • High density deeply channelized OTN framing, mapping, and ODU0/ODUflex granular switching,
  • High Density SONET/SDH framing, mapping and switching to enable carriers to transition from SONET/SDH to OTN without stranding their legacy network,
  • Onboard Carrier Ethernet PCS and MACs with integrated packet timing capabilities in order to address the requirements of mobile backhaul in the age of LTE,
  • Packet and OTN fabric interfaces to enable both packet and OTN switching applications,
  • Ability to address OTN, packet and lambda switched deployments with the same device
These features enable the equipment vendor to address all present and future requirements imposed by Metro OTN while minimizing total cost of ownership.

Summary

PMC-Sierra has introduced a new family of OTN products that uniquely delivers on the requirements of Metro OTN enabling OEMs to deliver a new class of transport equipment upon which carriers can build their next generation Metro transport networks which are:

  • Multi-service, with seamless transport of Ethernet, Storage, Video, SONET/SDH, and Private Line
  • Scalable with the rapid growth in packet traffic
  • Switchable, providing fine-grain sub-lambda grooming
  • Efficient, especially for the transport of packet centric services
  • Compatible with the core network, providing end-to-end Access-Metro-Core continuity for flexibility, protection and management.
With this new class of equipment, carriers can achieve reduction in  OPEX and CAPEX necessary to enable profitable scalability to support the upcoming 4x growth in network traffic. 

About the Author

As a Product Line Manager in PMC-Sierra’s Communication Products Division, Scott Wakelin has helped define some of the industry’s most successful communication semiconductor solutions including PMC’s HyPHY, TEMUX, and FREEDM product families. Currently focused on packet-optical transport solutions, Mr. Wakelin has over 12 years of experience delivering OTN, SONET/SDH, and Ethernet products to market. Mr. Wakelin holds a Master of Applied Science degree in network infrastructure and security.



About the Company

PMC (Nasdaq: PMCS) is the semiconductor innovator transforming networks that connect, move and store big data. Building on a track record of technology leadership, the company is driving innovation across storage, optical and mobile networks. PMC's highly integrated solutions increase performance and enable next-generation services to accelerate the network transformation. For more information visit www.pmcs.com.


Wednesday, December 5, 2012

ECI’s Native Packet Transport Brings Simplification with MPLS-TP

ECI Telecom introduced five new Native Packet Transport (NPT) platforms with multidimensional flexibility (capacity, interfaces, protocols) for handling both Ethernet and native TDM traffic in metro networks.

ECI's Native Packet Transport leverages MPLS Transport Profile (MPLS-TP) for handling of packet and TDM traffic, which will continue to co-exist in metro network for a long while. The company said MPLS-TP is ideally suited for the metro because it is simple to operate and manage, because it is scalable to large networks, and because it is lower cost than IP/MPLS + CES (circuit emulation service).  MPLS-TP brings all of the traffic engineering benefits of MPLS, but does not require running the control plane on
thousands of network elements (NEs) across the metro.

ECI’s Native Packet Transport platforms are managed by the company's existing LightSoft  network management system, which ensure unified multi-layer management for     MPLS, WDM and TDM.  The NMS offers GUI-based operation, enabling the packet transport      network to be as easily managed as existing TDM-based transport networks.

"There is no question that data traffic is exploding around us. The NPT was developed to help realize the promise of low cost packet transport, without compromises in functionality. With the NPT, we are addressing our customers’ needs for a simplified solution able to cost-effectively handle both packet and TDM traffic. ECI is once again proving our commitment to be a partner for growth to our customers, by providing tailored solutions that meet their pain points and lower the TCO for the ever-changing transport environment," stated Alon Moshes, Head of the Packet Transport Line of Business, ECI Telecom. ​

http://www.ecitele.com/


Thursday, October 18, 2012

Geo Builds Data Center Interconnect for iomart


Geo Networks will provide a fully dedicated fibre optic ring connecting iomart Group’s six data centre sites across the UK.

Geo’s fiber ring will span 1,860 km and offer guaranteed latencies between data center sites including London, Maidenhead, Manchester, Glasgow, Leicester and Nottingham. Latency between iomart’s London and Maidenhead data centres will become virtually instantaneous while the Glasgow to London route will be four times faster than current routes. Geo will manage the service, lighting multiple 10G wavelengths for high availability.
http://www.geo-uk.net/

Tuesday, October 16, 2012

ADVA and Corning Achieve 100G Direct Detection over 600km


ADVA Optical Networking and Corning have successfully tested direct-detection 100G technology over  600km of Corning LEAF optical fiber -- the first time that direct-detection 100G technology has been used outside of the metro environment. The test used the ADVA FSP 3000 with inline amplification and Corning LEAF fiber.

ADVA's 100G Metro solution leverages 4x28G direct detection technology. Corning's LEAF fiber requires dispersion compensation modules (DCMs) be used only in the terminals at the ends of the link.

“In the metro environment, enterprises and service providers have been cautious about deploying 100G technology,” said Barry Linchuck, division vice president and director, Worldwide Marketing, Optical Fiber, Corning Incorporated. “They need a 100G solution at the right cost point. With this demonstration, we've clearly shown the tremendous opportunities possible through the complimentary features of ADVA Optical Networking's 100G Metro solution and Corning LEAF fiber.”

http://www.advaoptical.com/

http://www.corning.com/opticalfiber/products/LEAF_fiber.aspx

Tuesday, October 9, 2012

Cyan's SDN-Enabled OTN Fabric Redefines Metro Networks Without Routers


Cyan introduced a multi-terabit packet and G.709 optical transport network (OTN) switch fabric for its Z-Series packet-optical metro transport platform.  The new card enables router bypass in metro software-defined networks (SDNs) while supporting both Ethernet and OTN. 


Cyan said its approach makes sense because the vast majority of metro traffic is transit, with static connections that do not require higher layer routing.  Therefore, using routers across the metro only adds complexity and cost.  Cyan's multi-layer uses a SDN control plane for planning, operations and validation.

The switching fabric scales to over 4 million pps of throughput performance. The platform design allows for up to 200 Gbps per slot, enabling a range of 10G, 1G and ODUflex services. Cyan's Z77 platform offers 14 slots for 2.8 Tbps of capacity.

"Routers play an important role in the network, but the majority of services do not require routing and can be offloaded to reduce costs and simplify operations. Our Z-Series platforms and SDN software are helping more than 100 service providers around the world achieve these goals in a variety of applications," said Michael Hatfield, president at Cyan.

http://cyaninc.com/

Thursday, July 19, 2012

Zayo Builds in Denver

Zayo is undertaking a 521-mile fiber build in the greater Denver area. The fiber build will span the Front Range, encompassing the cities of Fort Collins, Greeley, Loveland, Longmont, Boulder, Colorado Springs, and the larger Denver metro area. Zayo said the investment will bolster its presence in the central business districts of Denver and Colorado Springs.

Adding this network expansion to the existing Zayo and AboveNet assets, Zayo will have 900 route miles of fiber network in the greater Denver area. 
http://www.zayo.com 

See also