Patent ID: 8200843

Claim:
A method for establishing a network connection service, comprising: sending, from a first node to a second node, a notifying message that includes a signal type of a signal transmitted from the first node to the second node, and a protocol adaptation stack capability of the first node; wherein the protocol adaptation stack capability of the protocol adaptation stack includes either a Virtual Concatenation (VCAT) capability or a Link Capacity Adjustment Scheme (LCAS) capability of the first node, wherein the VCAT capability indicates whether the first node supports VCAT, and the LCAS capability indicates whether the first node supports LCAS; receiving, by the first node, a response message from the second node reflecting the information included in the notifying message, wherein the response message is sent from the second node to the first node after the second node determines that the signal type is supported by the second node, and the protocol adaptation stack capability supported by the first node are supported by the second node; and establishing, by the first node, the network connection service by transmitting a signal that has the signal type indicated in the notifying message; configuring the protocol adaptation stack capability LCAS that is supported by both the first node and the second node on the first node.