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DSLAM Backhauling

Ekinops brings a number of differentiating capabilies to market that make DSLAM back hauling much more economical.  


NEED

To profit from new high-bandwidth video services, such as IPTV and VOD, and to meet increasing demand for bandwidth, carriers are seeking to evolve their broadband networks to support increased capacity. Delivering this higher bandwidth to more and more customers by deploying more DSLAMs or other broadband aggregators necessitates considering a capable backhaul solution.   In addition, the move from traditional TDM technolgoies for backhauling DSLAMs to IP DSLAMs that use Ethernet for back haul drives the need for a platform that can efficiently aggregate multiple protocols over fewer fibers/wavelengths.

CHALLENGES

Cost effective backhaul of multiple DSLAMs efficiently over fiber to the central office (CO) presents a few challenges to carriers. First of course, there are fiber constraints and fiber costs.  Weather you are working in a fiber constrained environment or an environment where fiber is available, it always makes sense to save capital expense by using less fiber.   Of course, the move to WDM did help this issue.  Now what carrier's need is more effiecient WDM/transport systems that can further reduce the fiber and wavelength requirements in DSLAM backhauling applications. 

There are numerous capabilities that have recently come to market that make a transport system ideal for DSLAM backhauling.   One should look for a transport system that can:

  • lessen or mitigate the need for additional fiber
  • offer single fiber capability (transmit and receive on the same fiber) to reduce infrastructure costs.
  • offer an alternative leverage existing infrastructure to the greatest extent possible
  • multiplex all protocols onto a single wavelength (SONET/SDH and Ethernet for istance)
  • enable backhaul over existing fiber or SONET and SDH backbones
  • be adaptable to any topology (ring, spur, bus) with multiple drops
  • easily and incrementally scale to accommodate network growth
  • offer a multi-protocol ADM capability to allow aggregation from mutliple remote sites by adding and dropping TDM and Ethernet services off of the same wavelength

There are a number of systems in the market that offer some if these things but, there are few that offer them all.

THE ALTERNATIVES

Basically, the only real option to finding a transport system that has the capabilities as outlined above is to utilize more wavelengths and/or more fiber.  

Ekinops offers a unique approach that not only alleviates the limitations of competing approaches, but also provides lower cost, higher scalability, and greater flexibility.

EKINOPS SOLUTIONS

To meet the challenge of backhauling today's broadband networks, the Ekinops 360 metro, regional, and long haul transport platform has introduced a number of key capabilities.   First, the Ekinops 360 transport platform serves as both an ADM and as a traditional WDM transport system.   The Ekinops 360 platform can more efficiently utilize existing SONET/SDH rings that are already in place in access networks by allowing a carrier to carry a mix of Ethernet and SONET/SDH low order traffic over the infrastructure that is already in place.  Yes, the Ekinops 360 does not always have to aggregate services onto wavelengths, it can also aggregate traffic onto existing SONET/SDH 2.5G networks.  If you have fiber in place and want to utilize WDM, the Ekinops 360 platform is also ideal.  First, the Ekinops 360 platform offers single fiber tranmit and receive to reduce infrastrucuture costs.  Then, the Ekinops 360 utilizies this single fiber more efficiently in a DSLAM aggregation environment by providing a multi-protcol ADM capability that allows adding and dropping of multiple protocols and rates off of a single wavelegth at each site (STM-1/4, GigE, OC-48, 10/100).  This reduces the number of wavelengths necessary to aggregate from multiple remote sites and it reduces the amount of equipment necessary at each site. 

BENEFITS

  • lessen or mitigate the need for additional fiber
  • more efficent utilization of fiber that is being used (Up to 60% savings on wavelengths)
  • alternatively utilizes existing SONET/SDH infrastruture that is already in place
  • be adaptable to any topology (ring, spur, bus) with multiple drops
  • easily and incrementally scale to accommodate network growth. 

Simply put, the Ekinops aggregation and transport platform leads the way in providing today's most cost effective and flexible solutions for backhauling multiple high-capacity DSLAM traffic.

LINKS TO RELATED PRODUCTS:

PM253 (aggregation and transport of GigE over SONET/SDH infrastructure)
PM254 (aggregation and transport of GigE over SONET/SDH infrastructure)
PM1008 (GigE ADM.  When used with the PM124, becomes a multi-protocol ADM)
PM124   (aggregate 10/100, STM1/4, OC-3/12 into a GigE on any Ekinops GigE module)