Ethernet Transport and Infrastructure

Carrier Ethernet technology can and is being used in a number of transport and infrastructure applications where its reliability, flexibility and scalability combine to address network operator and service provider challenges. In this section, we highlight several that have been particularly successful for our customers.

SONET/SDH Displacement with resilient Ethernet rings (G.8032)

ITU G.8032 defines the multi-node ring protection architecture for native Ethernet  networks. This standard describes the application, technology, performance characteristics and requirements of a G.8032 ring.

G.8032 is a technology game-changer as it provides the standards-based method of delivering high-performance Carrier Ethernet services over a multi-node ring with 50ms protection switching. This is important as carriers want to move away from SONET/SDH to a native Ethernet based infrastructure, but do not want to give up standards-based 50ms switching and 99.999% reliability.

Solutions from Overture Networks operate rings at 1 Gbps and 10 Gbps and perform protection switching far faster than the 50ms standard requires.

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Increase bandwidth to remote subscribers with DSLAM and Broadband Backhaul

Service providers and network operators are facing increasing competition for broadband services.  This competition is raising the standard for bandwidth to residential and small business subscribers.  Many service providers deploy remote DSLAMs to reach rural communities and backhaul the aggregated traffic over one to four DS1s.  This is simply not enough capacity to serve the 100 or more subscribers being served from those DSLAMs.

With Ethernet over bonded copper solutions from Overture Networks, the service provider can deliver much more bandwidth to those remote DLSAMs – typically 50 Mbps to 100 Mbps using the same copper pairs that were limited to 2-10 Mbps in the DS1 application.

Deliver Ethernet between Offices and Remotes over any Transport

If you need to get Ethernet from one central office or PoP to a colocation facility or remote, you no longer need to wait for dark fiber to become available. Using your existing copper plant, SONET/SDH, DS3 or DS1/E1 infrastructure, you can now transport Ethernet between various points in your network without relying on dark fiber alone. Overture Networks has deployed thousands of devices into this application alone. If you have dark fiber available and wish to manage the endpoints for performance and fault isolation, Overture Networks products can help there, too.

Reliably transport DS1 and E1 circuits over low-cost Packet Networks

Service providers and network operators who are deploying Carrier Ethernet solutions for the growth services which are IP and Ethernet based understand that supporting legacy DS1/E1 based services will be a requirement for years to come. For business services, DS1s for PBX, private line services, and Frame Relay will stay in place until those services are ultimately converted to other technologies. For mobile backhaul, DS1s to support 2G and some 3G services will stay in place and continue to grow for a number of years.

When it comes to pseudo-wire services, performance is everything. The DS1/E1 must still meet the same industry standards of performance in terms of latency, jitter and wander. MEF 18 is a new level of certification developed by the Metro Ethernet Forum to address TDM circuit emulation (pseudo-wire) services over Ethernet. The purpose of this certification is two-fold: to ensure interoperable vendor implementations and to ensure that the TDM services still meet stringent ITU and ANSI standards. MEF 18 was specifically developed to ensure solutions can deal with real world impairments of latency, jitter and wander. In order to be MEF 18 certified, solutions must deliver ANSI and ITU compliant DS1s under extreme variations of network utilization and jitter. Overture solutions are some of the first in the industry to meet the stringent certification requirements of MEF 18.

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Optimize Your IP Services with Low-Cost Layer 2 Aggregation

If you are currently terminating your growing business IP services using a service edge router outfitted with a channelized DS3, SONET or SDH interface, you understand the challenges – these interfaces are expensive, strain the performance of route processors, strand capacity of high performance interface slots, and in many cases are no longer available from the manufacturer. You also understand that life might be simpler if you don’t have to deploy a router in every co-location facility. With the Overture Networks, you can address all of these challenges and terminate your IP connections at the edge, and use simple Ethernet interfaces on your routers.

The Overture solution allows customers to use convenient solutions such as IP/PPP, IP/MLPPP or IP/FR on their customer premise routers and optimize with Fast Ethernet/GigE on the service edge. The Overture 6000 provides the interworking and aggregation between these two technologies for a cost effective and scalable solution.

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Increase bandwidth to Traffic Lights and Video Surveillance

The Overture Networks HN family of products is particularly well suited for this application.  The HN products can be used to provide services from 1 Mbps to over 100 Mbps for counties and municipalities who need to increase bandwidth to traffic lights or for video surveillance applications where only existing copper plant is available.

Improve connectivity within Multi-tenant Campus and Buildings

The Overture Networks HN family of products enables 1 Mbps to over 100 Mbps services for Campus and In-Building applications.  The product line enables service providers, network operators and property owners to take advantage of the existing copper plant on campus or up the risers in buildings, realizing a huge cost savings while enabling high-speed Ethernet services.