Provider Backbone Bridges (PBB) and Provider Backbone Transport (PBT)

Bringing carrier-class attributes to Ethernet technology

Nortel's innovative Provider Backbone Bridges (PBB) and Provider Backbone Transport (PBT) technologies are set to revolutionize metro networking as providers look for an evolution strategy that will enable them to support the growing demand for high-bandwidth video and data services in their metropolitan networks. Through our solutions we deliver a simple, cost -effective metro evolution strategy that is scalable and easy to implement and manage.

Currently making their way through standards bodies, PBB and PBT, in conjunction with new Ethernet OAM standards, extend the capabilities of Ethernet to transform it into a true carrier-class technology. With Nortel's Carrier Ethernet solutions, we are able to help solve current Ethernet challenges in order to bring determinism, hard QoS, scale, 50 ms resiliency and carrier-class OAM tools to native Ethernet.

• Provider Backbone Bridges enable millions of service instances to be deployed in a single metro, compared to just over 4000 with traditional Ethernet.
• Provider Backbone Transport allows for point-to-point Ethernet tunnels to be set up across a metro. These tunnels reserve bandwidth, support provisioned QoS metrics and deliver 50 ms switchover to a provisioned protection path- matching benchmarks set by circuit-based networks.
• Carrier-class OAM tools bring standardized fault management and performance monitoring capabilities to Ethernet networks. Ethernet OAM has made significant advancements, in the standards-bodies giving service providers a comprehensive suite of tools to effectively manage their metro Ethernet network.