Patent ID: 8670666
Filing Date: 2014-03-11
Classification: H04B,H04J,H04Q

Abstract:
1. A method comprising: in an optical communication network that includes a plurality of interconnected network nodes, storing in each network node one or more cross-talk margins of respective communication channels that traverse the node, each cross-talk margin indicating an amount of additional cross-talk that a corresponding one of the communication channels can tolerate and remain within specified performance criteria; identifying a potential communication channel that traverses a subset of the nodes in the network; and determining quality of the potential communication channel by evaluating the cross-talk margins stored in the nodes in the subset, wherein determining the quality comprises evaluating cross-talk inflicted on the potential communication channel by at least one other communication channel that traverses at least one of the nodes in the subset using the cross-talk margins stored in at least one of the nodes, wherein determining the quality further comprises evaluating cross-talk inflicted by the potential communication channel on at least one other communication channel that traverses at least one of the nodes in the subset using the cross-talk margins stored in at least one of the nodes.