LINK ACTIVATION METHOD AND APPARATUS FOR PROTECTION PATH

摘要

Provided is a method and apparatus for activating a link between a first node and a second node for transmission of a lower order optical channel data unit (ODU), in which the link may be activated based on a first adaptation function between a higher order ODU and the lower order ODU performed by the second node and a second adaption function between the higher order ODU and the lower order ODU performed by the first node, and may also be activated when the first node receives an activation message from a third node, a preceding node of the first node.

主权项

1. A link activation method performed by a first node, the method comprising:
receiving, from a third node, a first activation message requesting activation of a first link between the first node and a second node for transmission of a lower order optical channel data unit (ODU); transmitting, in response to the first activation message, to the second node, an adaptation request message requesting a first adaptation function be performed between a higher order ODU and the lower order ODU; receiving, from the second node, a response message responding to a request for the to first adaptation function; performing, when the first adaptation function is performed, a second adaptation function between the higher order ODU and the lower order ODU; and activating the first link by generating a cross connection (XC) between the first node and the second node based on the first adaptation function and the second adaptation function.