| 摘要 |
<p>Path protection is provided in a transmission equipment or node of a synchronous network in which traffic is carried in virtual containers within frames. Path protection is provided between first and second ingress points and an egress point by embedding an encoded measure of the respective path quality within a pointer associated with each frame. This measure temporarily replaces a set of pointer bits which are subsequently regenerated. At the egress point the quality measures of the two paths are compared and the higher quality path is selected. <IMAGE></p> |
