A diversification route (Connection-B) is generated after establishing a
first path (Connection-A) through the network (10) between an ingress
client node (12) and an egress client node (14) through a first ingress
network element (16) within the optical network. Information identifying
the first network element is passed by the ingress client node (12) to a
second network element (18) in the network. Information identifying the
first path and desired diversity type is passed from the second network
element (18) to the first network element (16). In response to receiving
the information identifying the first path, an entity list associated
with the first path is passed from the first network element (16) to the
second network element (18). The second path (Connection-B) is
established responsive to the information associated with the first path
(Connection-A).