... could be deployed on a customer site instead of in the POP. Or a fiber ring could extend into basement of a building, placing the customer directly on the ring. In these examples, there are ... central role in driving reliability and 99.999% availability into emerging packet networks.Deploying Packet Data Services in a Hybrid Network In today’s network, basic data services remain viable ... features to Ethernet and IP that are missing over SONET transport. The configuration is still a ring, using two fibers per ring. However, rather than dedicating one ring to protection and one to...