Network port for tracing a connection topology

• US 20070076632A1
• Filed: 10/05/2005
• Published: 04/05/2007
• Est. Priority Date: 10/05/2005
• Status: Abandoned Application

• Current Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Ghamami, Paymon
• Application Number:
  US11/242,869
• Publication Number:
  US 20070076632A1
• Time in Patent Office: Days
• US Class Current: 370/254
• CPC Class Codes: H04L 41/12 Discovery or management of network topologies
• CPC Class Codes: H04L 43/50 Testing arrangements

Abstract

A network port and method for tracing a connection topology between at least two connected devices are described. The network port includes a logic circuit connected with a communication path for connecting with another network port. The logic circuit is arranged to generate and transmit a trace signal responsive to receipt of an activation signal. The logic circuit is arranged to generate an indicator indicative of at least one of: receipt of a reply signal responsive to transmission of the trace signal and expiration of a predetermined time period. The method includes transmitting a trace signal from a first device to a second device responsive to receipt of an activation signal and generating an indicator indicative of at least one of: receipt of a reply signal from the second device responsive to transmission of the trace signal and expiration of a predetermined time period.

Claims

1. A network port for tracing a connection topology, comprising:

a logic circuit connected with a communication path for connecting with another network port, the logic circuit arranged to generate and cause transmission of a trace signal over the communication path responsive to receipt of an activation signal, the logic circuit arranged to cause generation of an indicator indicative of at least one of;

receipt of a reply signal over the communication path responsive to transmission of the trace signal and expiration of a predetermined time period.

2. A network port as in claim 1, comprising:

an actuator operatively connected with the logic circuit and arranged to generate a activation signal responsive to activation by a network plug at a first end of the communication path connected with the network port.

3. A network port as in claim 2, comprising:

a signal generator operatively connected with the logic circuit and arranged to generate an indicator responsive to receipt of an indicator signal from the logic circuit; and

wherein the logic circuit is arranged to drive an indicator signal to the signal generator in response to receipt of at least one of;

the reply signal from the network plug and the activation signal.

4. A network port as in claim 3, wherein the indicator generated by the signal generator is at least one of a visual signal and an audio signal.

5. A network port as in claim 2, wherein the actuator is arranged to be activated by insertion of the network plug farther in the network port than required for establishing a signal connection between the network cable and the network port.

6. A network port as in claim 1, wherein the trace signal is transmitted over the received network cable.

7. A network port as in claim 1, wherein the trace signal generated by the logic circuit comprises:

a predetermined format packet.

8. A device as in claim 7, wherein the trace signal generated by the logic circuit is a predetermined format packet comprising at least one of:

a port identifier of the network port in a network device;

a device identifier of the network device; and

a MAC address of the network device.

9. A network port as in claim 1, comprising:

an actuator operatively connected with the logic circuit and arranged to generate an activation signal responsive to activation by a user.

10. A network port as in claim 1, wherein the logic circuit is further arranged to generate a reply signal for transmission over the communication path in response to receipt of a trace signal from the communication path.

11. A network port as in claim 10, wherein the logic circuit is further arranged to generate an other trace signal for transmission over an other communication path connected with the logic circuit responsive to receipt of the trace signal and the logic circuit is arranged to generate a reply signal responsive to at least one of:

receipt of an other reply signal over the other communication path responsive to transmission of the other trace signal and expiration of a predetermined time period.

12. A network device, comprising:

a network adapter arranged to establish a connection between the network device and another network device via a network cable, the network adapter comprising;

a network port as in claim 1.

13. A network port for tracing a connection topology, comprising:

a logic circuit arranged to be operatively connected with a network cable via a network plug received in the network port and arranged to generate a reply signal in response to receipt of a trace signal from the network plug, wherein the reply signal is a predetermined format packet;

wherein the logic circuit is arranged to generate an indicator signal responsive to;

receipt of the trace signal and generation of the reply signal, and

a signal generator operatively connected with the logic circuit and arranged to generate an indicator responsive to an indicator signal from the logic circuit.

14. A network port as in claim 13, wherein the logic circuit is further arranged to generate an other trace signal for transmission over an other communication path connected with the logic circuit responsive to receipt of the trace signal and the logic circuit is arranged to generate a reply signal responsive to at least one of:

receipt of an other reply signal over the other communication path responsive to transmission of the other trace signal and expiration of a predetermined time period.

15. A network port as in claim 13 wherein the predetermined format packet comprises at least one of:

a port identifier of the sender of the packet;

a device identifier of the sender of the packet; and

a MAC address of the sender of the packet.

16. A method for tracing a connection topology between at least two connected devices, comprising:

transmitting a trace signal from a first device to a second device responsive to receipt of an activation signal;

generating an indicator indicative of at least one of;

receipt of a reply signal from the second device responsive to transmission of the trace signal and expiration of a predetermined time period.

17. The method as in claim 16, further comprising:

generating an activation signal responsive to insertion of a network plug in the first device.

18. The method as in claim 16, further comprising:

generating an other trace signal from the second device to an other device connected with the second device responsive to receipt of the trace signal at the second device;

generating a reply signal at the second device for transmission to the first device responsive to at least one of;

receipt of an other reply signal from the other device responsive to transmission of the other trace signal and expiration of a predetermined time period.

19. The method as in claim 18, wherein the reply signal comprises the other reply signal from the other device.

20. The method as in claim 16, wherein either or both of the trace signal and the reply signal are a predetermined format packet comprising at least one of:

a port identifier of the sender of the packet;

a device identifier of the sender of the packet; and

a MAC address of the sender of the packet.