Unformatted text preview: (f) Detecting bit errors in a lightpath 8.2 Consider the SONET network operating over the optical layer shown in Figure 8.13. Trace the path of the connection through the network, and show the termination of different layers at each network element. 8.3 Consider the network shown in Figure 8.14. Suppose the link segment between OLT A and ampliﬁer B fails. (a) Assume that each node detects loss of light in 2 ms and waits 5 ms before it sends an FDI signal downstream. Also, each node waits for 2 s after the loss of light is detected before it triggers an alarm. Assume that the propagation delay on each link segment (segment deﬁned as the part of the link between adjacent ampliﬁers or between an OLT and adjacent ampliﬁer) is 3 ms....
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This note was uploaded on 01/15/2011 for the course ECE 6543 taught by Professor Boussert during the Spring '09 term at Georgia Tech.
- Spring '09