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Autonegotiation over an interface for which no autonegotiation standard exists

A technology of automatic negotiation and interface, applied in the field of computer network

Active Publication Date: 2008-12-17
JUMIPER NETWORKS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can present challenges if devices are requested to support auto-negotiation for lower rates that require a different physical interface in order to comply with the standard

Method used

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  • Autonegotiation over an interface for which no autonegotiation standard exists
  • Autonegotiation over an interface for which no autonegotiation standard exists
  • Autonegotiation over an interface for which no autonegotiation standard exists

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Experimental program
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Embodiment Construction

[0021] figure 1 is a block diagram illustrating an exemplary computer network environment 2 . In this simplified example, computer network environment 2 includes network switch 10 connected to network devices 12A-12N ("network devices 12"). Links 14A- 14N (“links 14 ”) connect to communication ports of network switch 10 and network device 12 , and communicatively connect network switch 10 to each network device 12 . For example, link 14A connects network device 12A to switch 10 . Although discussed with respect to network switches, the techniques described herein are applicable to any network device.

[0022] Each of links 14 may be a different type of connector. Link 14 may be formed from various connection materials (eg, fiber, copper, and twisted pair cables), and link 14 may also support various transmission rates. For example, link 14 may support a transfer rate of 10 megabits per second (Mb / s), 100 Mb / s, 1 gigabit per second (Gb / s, equal to 1000 Mb / s), or 10 Gb / s. N...

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Abstract

A method for enabling autonegotiation over an interface for which no autonegotiation standard exists comprises establishing network communication between a first network device and a second network device over a communication link. The first network device includes a first media access controller (MAC) associated with a communication port coupled to the communication link and a second MAC positioned between the first MAC and the communication port, and the second MAC operates as a proxy MAC for the first MAC. The first MAC outputs an outbound data communication to the communication port at a first communication rate. The proxy MAC intercepts the outbound data communication. The proxy MAC then outputs the outbound data communication to the communication port at a second communication rate different from the first communication rate.

Description

technical field [0001] The present invention relates to computer networks, and more particularly, to communication with computer networks. Background technique [0002] A computer network is a collection of interconnected computing devices that exchange data and share resources. The Open Systems Initiative ("OSI") module of the network consists of seven layers. For example, a Layer 2 ("L2") network protocol may handle framing of data and interfaces between higher layers and the physical layer. Ethernet is an example of an L2 communication protocol. A network switch is an example of a L2 device that participates in data exchange. A network switch connects multiple network devices to each other. A device connected to one port of a network switch is generally able to communicate directly with any other device connected to another interface of the network switch. [0003] Auto-negotiation is the process by which two devices in communication select different parameters (eg, ...

Claims

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Application Information

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IPC IPC(8): H04L12/02H04L12/56
CPCH04L47/10H04L47/266H04L49/30H04L49/351
Inventor 阿希什·兰詹安库尔·辛格拉哈沙德·纳基尔佩德罗·R·马克斯
Owner JUMIPER NETWORKS INC