Method and apparatus to detect configuration information for a digital subscriber line device

• US 7,263,557 B2
• Filed: 10/24/2001
• Issued: 08/28/2007
• Est. Priority Date: 10/24/2001
• Status: Active Grant

• Current Assignee: Maxlinear Incorporated
• Original Assignee: Intel Corporation
• Inventors: Beier, Niels, Lund, Sven O.
• Primary Examiner(s): WON, MICHAEL YOUNG
• Application Number:
  US10/027,716
• Publication Number:
  US 20030078999A1
• Time in Patent Office: 2,134 Days
• Field of Search: 709/220, 709/227, 709/230, 709/222, 709/228, 709/248, 370/235, 370/252, 370/395.31, 370/395, 370/395.61
• US Class Current: 709/228
• CPC Class Codes: H04L 12/2856 Access arrangements, e.g. Internet access asynchronous transfer mode networks H04L12/5601; broadband local area networks H04L12/2801; optical access or distribution networks H04Q11/0067; access to open networks H04L12/5691; digital subscriber line end-user equipment and bit-level processing of data on a PSTN-based network H04M11/00; home network gateways H04L12/2834; wireless access networks H04W
• CPC Class Codes: H04L 12/2883 ATM DSLAM
• CPC Class Codes: H04L 12/5601 Transfer mode dependent, e.g. ATM
• CPC Class Codes: H04L 2012/5625 Operations, administration and maintenance [OAM]
• CPC Class Codes: H04L 41/0806 for initial configuration or provisioning, e.g. plug-and-play
• CPC Class Codes: H04L 41/0853 by actively collecting configuration information or by backing up configuration information
• CPC Class Codes: H04L 41/0895 Configuration of virtualised networks or elements, e.g. virtualised network function or OpenFlow elements
• CPC Class Codes: H04L 43/50 Testing arrangements

Abstract

A method and apparatus to detect configuration information that may be used to configure a permanent virtual circuit (PVC) between a digital subscriber line (DSL) customer premise equipment (CPE) and a DSL access module (DSLAM) is described.

Claims

1. A method to configure a network device, comprising:

receiving a request at a DSL access module (DSLAM) to configure a permanent virtual circuit (PVC) between a digital subscriber line (DSL) device and said DSLAM, said DSL device having a virtual circuit (VC) table with multiple probe values, wherein said probe value represents a virtual circuit; and

automatically configuring said PVC using a list of probe values from said VC table sent with test packets to probe for configuration information for said PVC, and using said configuration information to configure said PVC, wherein said probe values and said configuration information comprise a virtual channel identifier (VCI) and a virtual path identifier (VPI);

wherein said automatically configuring comprises;

sending test packets to said DSLAM using said probe values;

receiving a response packet to one of said test packets;

retrieving said configuration information from said response packet;

configuring said PVC using said retrieved configuration information; and

further disabling each virtual circuit that does not receive a response packet.

2. The method of claim 1, wherein for each probe value in said VC table said sending comprises:

retrieving a probe value from said list of probe values;

enabling said virtual circuit; and

sending a test packet over said virtual circuit.

3. The method of claim 1, further comprising:

receiving a request to configure a second PVC for said DSL device;

receiving configuration information for said second PVC; and

configuring said second PVC using said configuration information.

4. The method of claim 1, further comprising:

determining that a terminating condition has occurred prior to automatically configuring said PVC;

sending a message that said PVC was not configured to a user; and

receiving said configuration information for said PVC from a user.

5. A system to configure a network device, comprising:

a digital subscriber line (DSL) customer premise equipment (CPE), said DSL CPE having a virtual circuit (VC) table with multiple probe values, wherein said probe value represents a virtual circuit;

a DSL access module (DSLAM) connected to said DSL CPE; and

a DSL probing module to use said list of probe values from said VC table sent with test packets to said (DSLAM) to probe for configuration information for use in automatically configuring a permanent virtual circuit (PVC) between said DSL CPE and said DSLAM, wherein said probe values and said configuration information comprise a virtual channel identifier (VCI) and a virtual path identifier (VPI);

wherein said automatically configuring comprises;

sending test packets to said DSLAM using said probe values;

receiving a response packet to one of said test packets;

retrieving said configuration information from said response packet;

configuring said PVC using said retrieved configuration information and

further disabling each virtual circuit that does not receive a response packet.

6. The system of claim 5, wherein said DSL CPE comprises a DSL CPE consisting essentially one of the following:

a DSL/asynchronous transfer mode (ATM) router, an asymmetric DSL (ADSL)/ATM router, a DSL/ATM bridge, an ADSL/ATM bridge, a DSL modem, and an ADSL modem.

7. A probing module for a network device, comprising:

an event management module which accesses a virtual circuit (VC) table that includes a list of probe values, wherein said probe value represents a virtual circuit, to automatically send test packets using said probe values from a digital subscriber line (DSL) device to a DSL access module (DSLAM);

a detection module to detect a packet received in response to at least one of said test packets and to disable each virtual circuit that does not receive a response packet;

an extraction module to retrieve configuration information from said received packet; and

a configuration module to configure a permanent virtual connection between said DSL and said DSLAM using said configuration information, wherein said probe values and said configuration information comprise a virtual channel identifier (VCI) and a virtual path identifier (VPI).

8. An article comprising:

a storage medium;

said storage medium including stored instructions that, when executed by a processor, result in configuring a network device by receiving a request at a DSL access module (DSLAM) to configure a permanent virtual circuit (PVC) between a digital subscriber line (DSL) device and said (DSLAM), said DSL device having a virtual circuit (VC) table with multiple probe values, wherein said probe value represents a virtual circuit, automatically configuring said PVC using a list of probe values from said VC table sent with test packets to probe for configuration information for said PVC, and using said configuration information to configure said PVC, wherein said probe values and said configuration information comprise a virtual channel identifier (VCI) and a virtual path identifier (VPI), said automatically configuring said PVC comprising sending test packets to said DSLAM using said probe values, receiving a response packet to one of said test packets, retrieving said configuration information from said response packet, and configuring said PVC using said retrieved configuration information and further disabling each virtual circuit that does not receive a response packet.

9. The article of claim 8, wherein the stored instructions, when executed by a processor, result in sending test packets, for each probe value in said VC table, by retrieving a probe value from said list of probe values, enabling said virtual circuit, and sending a test packet over said virtual circuit.

10. The article of claim 8, wherein the stored instructions, when executed by a processor, further result in receiving a request to configure a second PVC for said DSL device, receiving configuration information for said second PVC, and configuring said second PVC using said configuration information.

11. The article of claim 8, wherein the stored instructions, when executed by a processor, further result in determining that a terminating condition has occurred prior to automatically configuring said. PVC, sending a message that said PVC was not configured to a user, and receiving said configuration information for said PVC from a user.