Populating location wiremap databases

• US 8,838,831 B2
• Filed: 05/01/2007
• Issued: 09/16/2014
• Est. Priority Date: 05/01/2007
• Status: Active Grant

• Current Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Original Assignee: Cisco Technology, Inc. (Cisco Systems, Inc.)
• Inventors: Thomson, Allan, Stephenson, David S., Dhesikan, Subhasri, Doraiswami, Vijayaraghavan, Murthy, Shree
• Primary Examiner(s): Jaroenchonwanit, Bunjob
• Application Number:
  US11/742,971
• Publication Number:
  US 20080276004A1
• Time in Patent Office: 2,695 Days
• Field of Search: 709204-245, 370351-401
• US Class Current: 709/244
• CPC Class Codes: H04L 61/5014 using dynamic host configuration protocol [DHCP] or bootstrap protocol [BOOTP]
• CPC Class Codes: H04L 67/52 specially adapted for the location of the user terminal
• CPC Class Codes: H04W 4/02 Services making use of location information
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Abstract

A method for populating location wiremap databases. In particular implementations, a method includes establishing a link layer connection with a client on a switch port, where the switch port is associated with a port identifier and is mapped to a location; identifying one or more connection attributes of the connection, where the connection attributes comprise a network layer address of the client; and transmitting the port identifier and the network layer address of the client to a location server.

Claims

1. Logic encoded in one or more non-transitory media for execution and when executed operable to:

establish a link layer connection at a switch with a client on a switch port, wherein the switch port is associated with a port identifier and is mapped to a physical location;

identify one or more connection attributes of the link layer connection, wherein the connection attributes comprise a network layer address of the client;

transmit the port identifier and the network layer address of the client to a location server;

receive a physical location of the client at the switch from the location server; and

provide the physical location received at the switch from the location server to the client.

2. The logic of claim 1 wherein the logic is further operable to receive one or more port-to-location mappings from the location server, wherein each of the port-to-location mappings maps a particular switch port to a particular physical location.

3. The logic of claim 1 wherein the one or more connection attributes comprises one or more of a client media access control address, an internet Protocol (IP) address, a virtual local area network identification, a switch IP address, username, or Extensible Authentication Protocol ID.

4. The logic of claim 1 wherein the logic is further operable to provide a physical location of the client to the location server.

5. A method comprising:

establishing a link layer connection at a switch with a client on a switch port, wherein the switch port is associated with a port, identifier and is mapped to a physical location;

identifying one or more connection attributes of the link layer connection, wherein the connection attributes comprise a network layer address of the client;

transmitting the port identifier and the network layer address of the client to a location server;

receiving a physical location of the client at the switch from the location server; and

providing a physical location of the client to the location server.

6. The method of claim 5 further comprising receiving the one or more port-to-location mappings from the location server, wherein each of the port-to-location mappings maps a particular switch port to a particular physical location.

7. The method of claim 5 wherein the one or more connection attributes comprises one or more of a client media access control address, an Internet Protocol (IP) address, a virtual local area network identification, or a switch IP address, username, or Extensible Authentication Protocol ID.

8. The method of claim 5 further comprising providing the physical location received from the location server to the client.

9. A switch comprising:

one or more processors;

a memory;

a switch fabric comprising one or more switch ports; and

a network application, physically stored in the memory, comprising instructions operable to cause the one or more processors and the switch to;

establish a link layer connection with a client on a switch port, wherein the switch port is associated with a port identifier and is mapped to a physical location;

identify one or more connection attributes of the link layer connection, wherein the connection attributes comprise a network layer address of the client;

transmit the port identifier and the network layer address of the client to a location server;

receive a physical location of the client from the location server; and

provide a physical location of the client to the location server.

10. The switch of claim 9 wherein the network application is further operable to cause the one or more processors and the switch to receive the one or more port-to-location mappings from the location server, wherein each of the port-to-location mappings maps a particular switch port to a particular physical location.

11. The switch of claim 9 wherein the one or more connection attributes comprises one or more of a client media access control address, an Internet Protocol (IP) address, a virtual local area network identification, or a switch IP address, username, or Extensible Authentication Protocol ID.

12. The switch of claim 9 wherein the network application is further operable to cause the one or more processors and the switch to provide a physical location of the client to the location server.

13. A location server comprising:

one or more processors;

a memory;

a network interface; and

a location server application, physically stored in the memory, comprising instructions operable to cause the one or more processors and the location server to;

receive a switch port identification from a switch;

determine a physical location based on a port-to-location mapping; and

enter the physical location in a client location entry;

receive a configuration including one or more port-to-location mappings, wherein each of the port-to-location mappings maps a particular switch port to a particular physical location;

transmit the port-to-location mapping to the switch; and

provide the determined physical location of the client to the switch.

14. The location server of claim 13 wherein the location server application is further operable to cause the one or more processors and the location server to receive a configuration including one or more port-to-location mappings from the switch.

15. The location server of claim 14 wherein the location server application is further operable to cause the one or more processors and the location server to apply a policy to resolve any differences between a locally stored port-to-location mapping and the port-to-location mapping received from the switch.