METHOD AND SYSTEM FOR REHOMING A DIGITAL SUBSCRIBER LINE ACCESS MULTIPLEXER

• US 20080043926A1
• Filed: 09/11/2007
• Published: 02/21/2008
• Est. Priority Date: 05/31/2002
• Status: Active Grant

• Current Assignee: Bellsouth Intellectual Property Corporation (AT&T, Inc.)
• Original Assignee: Bellsouth Intellectual Property Corporation (AT&T, Inc.)
• Inventors: Young, Randy, Meggison, Earl
• Granted Patent: US 8,243,584 B2
• Time in Patent Office: Days
• US Class Current: 379/9.06
• CPC Class Codes: H04L 12/5601 Transfer mode dependent, e.g. ATM
• CPC Class Codes: H04M 11/062 using different frequency bands for speech and other data

Abstract

A method and system are provided for rehoming a digital subscriber line access multiplexer between a first data port and a second data port on a data switch. The method includes establishing a physical loop-back circuit between the second data port and a temporary input port of the data switch, establishing an extension permanent virtual circuit between the temporary input port and the first data port, removing a permanent virtual circuit between a data switch servicing a network service provider and the first data port, establishing a permanent virtual circuit between the data switch servicing the network service provider and the second data port, and 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 port, the physical loop-back circuit, and the extension permanent virtual circuit.

Claims

1. A method for rehoming a digital subscriber line access multiplexer between a first data port and a second data port on a data switch, the method comprising:

establishing a physical loop-back circuit between the second data port and a temporary input port of the data switch;

establishing an extension permanent virtual circuit between the temporary input port and the first data port;

removing a permanent virtual circuit between a data switch servicing a network service provider and the first data port;

establishing a permanent virtual circuit between the data switch servicing the network service provider and the second data port; and

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 port, the physical loop-back circuit, and the extension permanent virtual circuit.

2. The method of claim 1, further comprising:

removing the physical loop-back circuit from the second data port;

establishing a data connection between the second data port and a port on the digital subscriber line access multiplexer; and

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 port and the data connection between the second data port and the digital subscriber line access multiplexer.

3. The method of claim 2, further comprising:

removing the extension permanent virtual circuit between the first data port and the temporary input port.

4. The method of claim 3, further comprising:

removing a data connection between the first data port and the digital subscriber line access multiplexer.

5. The method of claim 4, wherein the physical loop-back circuit and the data connection between the second data port and the port on the digital subscriber line access multiplexer operate at a first bandwidth and wherein the data connection between the first data port and the digital subscriber line access multiplexer operates at a second bandwidth.

6. The method of claim 5, wherein the first bandwidth is greater than the second bandwidth.

7. The method of claim 1, wherein the data switch and the data switch servicing the network service provider comprise asynchronous transfer mode switches.

8. The method of claim 1, wherein removing a permanent virtual circuit between a data switch servicing a network service provider and the first data port comprises removing a permanent virtual circuit between a data switch servicing a network service provider and the first data port for each of a plurality of digital subscriber lines serviced by the digital subscriber line access multiplexer;

and

wherein establishing a permanent virtual circuit between the data switch servicing the network service provider and the second data port comprises establishing a permanent virtual circuit between the data switch servicing the network service provider and the second data port for each of the plurality of digital subscriber lines serviced by the digital subscriber line access multiplexer.