Equipment port failure detecting and positioning method and equipment port failure detecting and positioning system

A fault detection and device port technology, applied in the field of network communication, can solve the problems of reducing the efficiency of port fault detection and positioning, reducing the fineness of port fault detection and positioning, etc.

Active Publication Date: 2013-03-13
RUIJIE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the faulty port is confirmed, only the device or line card where the faulty port is located can be replaced, which reduces the efficiency of port fault detection and location; at the same time, in the prior art, manual fault location can only be located to the port, which reduces the fineness of port fault detection and location. Spend

Method used

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  • Equipment port failure detecting and positioning method and equipment port failure detecting and positioning system
  • Equipment port failure detecting and positioning method and equipment port failure detecting and positioning system
  • Equipment port failure detecting and positioning method and equipment port failure detecting and positioning system

Examples

Experimental program
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Embodiment 1

[0029] In the embodiment of the present invention, the self-loop function of the chip is used to detect port faults, and the following combination figure 2 Introduce the self-loop function of each chip.

[0030] 1. MAC self-loop: Take the self-loop function of the MAC chip of port A as an example. Under normal conditions, when port A sends a data packet to port B, the processing flow of the data packet is: MAC chip-AUI interface-PHY chip ( The sequence is PCS sublayer-PMA sublayer-PMD sublayer)-PPI interface-physical transmission medium-port B, when port A starts the MAC chip self-loop function, the data message sent by port A will be returned directly at the MAC chip For the MAC chip processing of port A, such as figure 2 Action 4 in;

[0031] 2. PCS self-loop: Take port B sending data packets to port A as an example. Under normal conditions, the internal data packet processing process of port B is: MAC chip-PCS sublayer-PMA sublayer-PMD sublayer. After port B starts the...

Embodiment 2

[0043] During specific implementation, when the determined faulty link contains multiple nodes, the method provided according to Embodiment 1 cannot accurately locate the faulty chip, thus reducing the fineness of port fault detection. Therefore, in order to further improve the fineness of fault detection, preferably, in the embodiment of the present invention, the following steps may also be included:

[0044] A1. The two nodes at both ends of the determined faulty link are set to be node A and node B respectively, wherein the distance between the node A and the first port is smaller than the distance between the node B and the first port;

[0045] Taking the first node as the PCS as an example, assuming that the link fault between the PCS and the MAC chip of the first port is determined, after the faulty link is determined, it can be determined that the two ports of the faulty link are respectively the MAC chips of the first port. Chip and PCS, set node A as the first port M...

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Abstract

The invention discloses an equipment port failure detecting and positioning method and an equipment port failure detecting and positioning system, which are used for improving port failure detecting and positioning efficiency. According to the method, after a first port and a second port are connected through a physical transmission medium, a first node of a self-starting loop is set if the amount of error messages received by the first port exceeds a preset threshold; the first port or the second port sends the data massages with the preset amount to an opposite port; if the first port is used for sending massage to the opposite port and the error massage is received, the fault in a link between the first node and an MAC (Media Access Control) chip of the first port is determined; and otherwise, the fault in a link between the first node and an MAC chip of the second port is determined; and if the second port is used for sending the message to the opposite port and the error message is received, the fault of the link between the first node and the MAC chip of the second port is determined, and otherwise, the fault of the link between the first node and the MAC chip of the first port is determined.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a device port fault detection and location method and system. Background technique [0002] The interconnection port refers to the situation where two ports on two network devices are connected through a transmission medium (such as optical fiber), such as figure 1 As shown, port A on device 1 and port B on device 2 are connected through a transmission medium, and packets sent from port A directly reach port B through the transmission medium, and vice versa. Such as figure 2 As shown, it is a schematic diagram of the link connection between port A and port B. Each port is composed of a medium access control (MAC, Medium Access Control) chip and a physical layer (PHY) chip. Among them, the MAC chip is subordinate to the seven-layer protocol In the second layer - the data link layer, the MAC chip is the core chip of the switch; the PHY chip is the physical layer ch...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/26
Inventor 余游旺
Owner RUIJIE NETWORKS CO LTD
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