Method and apparatus for interfacing external resources with a network element

• US 7,359,993 B1
• Filed: 10/03/2003
• Issued: 04/15/2008
• Est. Priority Date: 10/03/2003
• Status: Expired due to Fees

• Current Assignee: RPX Clearinghouse LLC (RPX Corporation)
• Original Assignee: Nortel Networks Limited (Nortel Networks Corporation)
• Inventors: Wang, Phil Yonghui, Lavian, Tal, Durairaj, Ramesh
• Primary Examiner(s): VU, VIET DUY
• Application Number:
  US10/678,704
• Time in Patent Office: 1,656 Days
• Field of Search: 709/213, 709/214, 709/215, 709/217, 709/250, 710/305, 711/6
• US Class Current: 709/250
• CPC Class Codes: G06F 13/4027 using bus bridges G06F13/4022 takes precedence

Abstract

External resources may be interfaced with a network element using an intelligent interface including an independent processing environment to enable the operational capabilities of the network element to be enhanced. The intelligent interface may serve as an interface to external resources such as network software repositories, storage servers, logging facilities and security services. By providing an intelligent interface, it is possible to interface external resources and enhanced services to the network element while allowing processing requirements to be offloaded to an external device or to the intelligent interface itself, so that the resources of the network element may be more fully utilized to perform network operations such as switching and routing functions. The intelligent interface also enables new resources to be made available to the network element when they are needed. An external communication port of the intelligent interface may be configured to operate using one of the USB standards.

Claims

1. A network element, comprising:

a network processor equipped with a first processing environment and a plurality of network interfaces to operate on data received from a communications network, and route or switch the data between network interfaces as the data passes through the network; and

an intelligent interface including a second processing environment independent of the first processing environment of the network processor and capable of booting independent of the first processing environment of the network processor, the intelligent interface thereby being available to control the network element during a boot process of the first processing environment of the network processor, the intelligent interface further being equipped with an external communication port configured to interface with external resources using one of the Universal Serial Bus (USB) standards, and an internal port configured to interface with the network processor.

2. The network element of claim 1, wherein the intelligent interface comprises a memory subsystem to enable the external port to store information independent of the network element.

3. The network element of claim 1, wherein the intelligent interface comprises a power source independent of the network element.

4. The network element of claim 3, wherein the power source is at least one of a power interface, a battery, and a fuel cell.

5. The network element of claim 1, further comprising an internal communications bus connecting between the network processor and the intelligent interface.

6. The network element of claim 5, wherein the internal communications bus is at least one of a PCI bus and a SCSI bus.

7. The network element of claim 1, wherein the intelligent interface is configured as an interface to an external storage resource.