Patent ID: 7274655
Filing Date: 2007-09-25
Classification: H04L,H04M

Abstract:
1. A method for rehoming a digital subscriber line access multiplexer between a first data switch and a second data switch, the method comprising: establishing an extension permanent virtual circuit between the first data switch and the second data switch; establishing a physical loop-back circuit at the second data switch for routing data from an output port of the second data switch to a temporary input port of the second data switch; removing a permanent virtual circuit between a data switch servicing a network service provider and the first data switch; establishing a permanent virtual circuit between the data switch servicing the network service provider and said second data switch; routing data between the network service provider and the digital subscriber line access multiplexer via the permanent virtual circuit between the data switch servicing the network service provider and the second data switch, the physical loop-back circuit, and the extension permanent virtual circuit; establishing a data connection between the second data switch and the digital subscriber line access multiplexer; routing data between the network service provider and the digital subscriber line access multiplexer via the permanent virtual circuit between the data switch servicing the network service provider and the second data switch, and the data connection between the second data switch and the digital sub scriber line access multiplexer; and removing the extension permanent virtual circuit between the first data switch and the second data switch.