A technique for verifying fiber connectivity via an optical supervisory channel
in a photonic network is disclosed. In one embodiment, the technique is realized
by sending a first message from the first node to the second node, wherein the
first message includes an address of an intended port of the second node; receiving
a second message at the first node from the second node in response to the first
message, wherein the second message contains an address of a receiving port of
the second node; and comparing the intended port of the second node and the receiving
port of the second node for verifying fiber connectivity between the first node
and the second node.