Method and apparatus for documenting network paths

• US 7,756,047 B2
• Filed: 10/26/2007
• Issued: 07/13/2010
• Est. Priority Date: 05/19/2005
• Status: Expired due to Fees

• Current Assignee: Panduit Corporation
• Original Assignee: Panduit Corporation
• Inventors: Caveney, Jack E.
• Primary Examiner(s): CHO, HONG SOL
• Application Number:
  US11/925,033
• Publication Number:
  US 20080043631A1
• Time in Patent Office: 991 Days
• Field of Search: 370241-248, 370/293, 370/400, 370/401, 370/492
• US Class Current: 370/248
• CPC Class Codes: H04B 2203/5445 Local network
• CPC Class Codes: H04B 2203/5458 Monitor sensor; Alarm systems
• CPC Class Codes: H04B 3/548 the power on the line being DC arrangements for feeding power H04L12/10; extracting feeding power from signals H04L25/02
• CPC Class Codes: H04L 41/00 Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks

Abstract

Methods and apparatus for documenting network path connectivity are described that allow a network management system/revision management system (NMS/RMS) to determine what equipment and ports support a network path by interrupting and restoring Power-over-Ethernet (PoE) service on the network path. Upon detecting a loss of PoE service, communication active jacks that support network path connectivity may activate an internal switch that interrupts downstream connectivity. Each communication active jack along the network path may then begin broadcasting a unique message in the upstream direction that is addressed to the NMS/RMS. Upon receiving a unique active jack message, the NMS/RMS may record the information contained within and instruct the communication active jack to reestablish connectivity to the next downstream device. In this manner, as each device along a network path regains connectivity the network path information stored within the NMS/RMS is updated until a complete view of the network path is documented.

Claims

1. A method of documenting a network system comprising at least one of a network management system (NMS) or a revision management system (RMS) and comprising a connector that contains an upstream network path cable connection having a plurality of pairs of leads and a downstream network path cable connection having pairs of leads corresponding to the plurality of pairs of leads of the upstream network path cable connection, the method comprising:

(a) monitoring a signal provided to the connector;

(b) disconnecting a pair of leads of the upstream network path cable connection from the corresponding pair of leads of the downstream network path cable connection after a predetermined change in the signal has been detected by the connector;

(c) connecting a transmitter in the connector to the pair of leads of the upstream network path cable connection after the predetermined change in the signal has been detected by the connector;

(d) transmitting a broadcast signal from the upstream network path cable connection;

(e) the at least one of the NMS or the RMS receiving the broadcast signal and providing a response thereto;

(f) terminating transmission of the broadcast signal after the response to the broadcast signal has been received by the connector;

(g) disconnecting the transmitter from the pair of leads of the upstream network path cable connection after the response has been received by the connector; and

(h) reconnecting the pair of leads of the upstream network path cable connection with the pair of leads of the downstream network path cable connection after the response has been received by the connector.

2. The method of claim 1, wherein the connector monitors Power-over-Ethernet (PoE) power supplied to the upstream network path cable connection.

3. The method of claim 1, wherein the connector monitors an Ethernet signal supplied to the pair of leads of the upstream network path cable connection.

4. The method of claim 1, further comprising supplying PoE power to the connector, the connector managing the PoE power to operate the circuitry within the connector.

5. The method of claim 1, wherein the connector receives the response via a network connection other than the upstream network path cable connection.

6. The method of claim 1, wherein the connector receives the response via the upstream network path cable connection.

7. The method of claim 1, wherein the system comprises a plurality of the connectors connected such that the downstream network path cable connection of an upstream connector is connected to the upstream network path cable connection of a downstream connector, the method being repeated from the connector furthest upstream sequentially to the connector furthest downstream.

8. The method of claim 1, wherein more than one pair of leads of the upstream network path cable connection is connectable to and disconnectable from:

the corresponding pairs of leads of the downstream network path cable connection and the transmitter.