IEEE 802.3bk Amendment to Enable Higher-Density, Longer-Reach EPON Apps

  • IEEE
  • IEEE Standards Association
PISCATAWAY, NJ - IEEE, a professional organization dedicated to advancing technology, announced the approval of IEEE 802.3bk "Standard for Ethernet Amendment: Physical Layer Specifications and Management Parameters for Extended Ethernet Passive Optical Networks." This amendment to IEEE 802.3 "Standard for Ethernet" is intended to enable higher-density and longer-reach applications of EPON Networks, while optimizing the costs of ownership for network operators.

"As operators around the world seek to build higher-density and more cost-effective optical access networks that connect more customers, service providers are grappling with a number of scalability challenges associated with delivery of mobile backhaul and guaranteeing connectivity to remote customers," said Marek Hajduczenia, chair of the IEEE 802.3bk Extended EPON Task Force. "The development of IEEE 802.3bk was an open, market-driven effort to amend the Ethernet standard to allow a given EPON deployment to support more users over longer distances than previously possible."

Since the standardization of 10 Gbps EPON (10G-EPON) in IEEE 802.3av-2009(1), deployments of technologies based on the standard have intensified among large network operators. With the commercial success of 1G-EPON and the commercial availability of its higher-speed version, 10G-EPON, new areas for improvement were identified, such as addressing cost-effective application of EPON in rural areas with lower customer densities, increasing subscriber density per port in the central office, sharing available links among larger concentrations of users and serving users distant from the nearest network hub.

Reducing Cost Per Subscriber in Rural Areas
IEEE 802.3bk addresses these issues by amending the base IEEE 802.3 Ethernet standard to support optical loss budgets in excess of those previously specified for EPON. In this way, IEEE 802.3bk is designed to enable the expansion of the EPON service area, while reducing cost per subscriber. Additional intended benefits of the extended EPON include reduction in the footprint and power consumption of central office equipment (per customer) and the cost of service upgrades and fiber deployment, as well as an increase in customer density per central office.

"We're excited about new IEEE 802.3bk-based products that will allow service providers to make better use of their already deployed fiber, increasing the number subscribers that can be served per OLT (optical line termination) port," said Edwin Mallette, distinguished engineer, network architecture and standards, with Bright House Networks. "This will significantly reduce the overall cost of delivering services over an EPON-based first-mile optical access."

"The IEEE 802.3bk-2013 amendment provides the leap forward in the capabilities of today's EPON deployments, allowing operators to serve more customers on a single optical interface in the central office, while keeping the cost-effective and service-oriented architecture of EPON unchanged," said David Law, chair of the IEEE 802.3 Ethernet Working Group and distinguished engineer with HP Networking. "While extending capabilities of existing EPON deployments, the market-driven innovation for EPON as the optical access technology continues. We are already seeing interest in defining the next generation of EPON, and we will be looking at service provider requirements and the state of optical access technologies to provide a cost-effective evolution path for EPON into the future."

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