Patent ID: 7616558
Filing Date: 2009-11-10
Classification: H04J

Abstract:
1. A method of reducing the transport capacity of a Virtual Concatenation Group that is transported from a source side to a sink side in a telecommunications network under control of a Link Capacity Adjustment Scheme (LCAS), wherein said Virtual Concatenation Group comprises a number of link members, in which payload data to be received at the sink side is transmitted, the method comprising: transmitting, in response to a received management command at the sink side instructing the sink side to remove one of said link members from said Virtual Concatenation Group, a first control message from the sink side to the source side comprising a fail message for said one link member, while continuing reception of payload data for said one link member; transmitting, in response to receiving said first control message at the source side, a second control message from the source side to the sink side indicating that payload data of said one link member shall not be used, while discontinuing transmission of payload data for said one link member; and discontinuing, in response to receiving said second control message at the sink side, the reception of payload data for said one link member and removing or disabling said one link member from said Virtual Concatenation Group on the sink side.