DUAL ASYNCRONOUS MAPPING OF CLIENT SIGNALS OF ARBITRARY RATE

摘要

A network may include an ingress node that is configured to receive a clientsignal having a client rate that is oneof a multiple different client rates, asynchronously map the client signalinto a first frame of a first rate, asynchronously map thefirst frame into a second frame of a second rate, and output the second frameon the network; an intermediate node that is configuredto receive the second frame, recover the first frame from the second frame,asynchronously map the first frame into a thirdframe of a third rate, and output the third frame on the network, where theintermediate node does not recover the client signalfrom the first frame; and an egress node that is configured to receive thethird frame, recover the first frame from the third frame,recover the client signal from the first frame, and output the client signal.