Method and system for rehoming a digital subscriber line access multiplexer

• US 8,693,311 B2
• Filed: 07/16/2012
• Issued: 04/08/2014
• Est. Priority Date: 05/31/2002
• Status: Expired due to Fees

• Current Assignee: Bellsouth Intellectual Property Corporation (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Young, Randy S., Meggison, Earl C.
• Primary Examiner(s): Nawaz, Asad
• Assistant Examiner(s): CHANG, STEPHANIE L
• Application Number:
  US13/550,226
• Publication Number:
  US 20120281743A1
• Time in Patent Office: 631 Days
• Field of Search: 370/248, 370/249, 370/352, 370/217
• US Class Current: 370/217
• 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

Rehoming a DLSAM between ports residing on a first switch includes establishing a physical loop-back circuit between a second port and a temporary input port of the first switch; establishing an ePVC between the input port and a first port, the first port coupled to a first connection; removing a PVC and establishing a new PVC; routing data between the second switch and the DSLAM via the new PVC, the circuit, the ePVC, and the first connection between the first switch and the DSLAM; removing the circuit from the second port; establishing a second connection between the second port and the DSLAM; routing data between the second switch and the DSLAM via the new PVC and the second connection; removing the ePVC between the first port and the temporary input port; and disconnecting the first connection between the first port of the first switch and the DSLAM.

Claims

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

establishing a physical loop-back circuit between the second data port and a temporary input port of the first data switch, the first data switch comprising an asynchronous transfer mode switch;

establishing an extension permanent virtual circuit between the temporary input port and the first data port, the first data port coupled to a first data connection between the first data switch and the digital subscriber line access multiplexer;

removing a permanent virtual circuit between a second data switch and the first data port, the second data switch comprising an asynchronous transfer mode switch;

establishing a new permanent virtual circuit between the second data switch and the second data port;

routing data between the second data switch and the digital subscriber line access multiplexer via the new permanent virtual circuit, the physical loop-back circuit, the extension permanent virtual circuit, and the first data connection between the first data switch and the digital subscriber line access multiplexer;

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

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

routing data between the second data switch and the digital subscriber line access multiplexer via the new permanent virtual circuit and the second data connection;

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

disconnecting the first data connection between the first data port of the first data switch and the digital subscriber line access multiplexer.

2. The method of claim 1, further comprising:

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

3. The method of claim 1, wherein the physical loop-back circuit and the second data connection between the second data port and the port on the digital subscriber line access multiplexer operate at a first bandwidth, and the first data connection between the first data port and the digital subscriber line access multiplexer operates at a second bandwidth.

4. The method of claim 3, wherein the first bandwidth is greater than the second bandwidth.

5. The method of claim 1, wherein the first data switch and the second data switch service a network service provider.

6. The method of claim 1, wherein removing the permanent virtual circuit between the second data switch and the first data port comprises removing the permanent virtual circuit between the second data 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 the permanent virtual circuit between the second data switch and the second data port comprises establishing a permanent virtual circuit between the second data switch and the second data port for each of the plurality of digital subscriber lines serviced by the digital subscriber line access multiplexer.