Method, equipment and system of implementing protection using link aggregate

A technology of link aggregation and equipment, applied in the direction of transmission system, correct operation test, electrical components, etc., can solve the problems of two-way fiber disconnection, fault occurrence, time-consuming and other problems of physical lines, and achieve the effect of rapid protection

Inactive Publication Date: 2007-02-14
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] 2. Fault occurs: both ports 2 of equipment A and B are faulty or the connected physical lines are bidirectionally broken or disconnected
[0015] 3. Port 2 of devices A and B can no longer receive packets from the peer. When the packets from the peer cannot be received in three sending cycles, devices A and B consider the port to be faulty.
[0021] ●Using the timeout mechanism to diagnose faults is very time-consuming;
[0022] ●There is no fault information notification mechanism, and when an error occurs at the local end, the peer end cannot be notified

Method used

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  • Method, equipment and system of implementing protection using link aggregate
  • Method, equipment and system of implementing protection using link aggregate

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Embodiment Construction

[0035] The LACP protocol detects line faults through timer overtime. If the period of sending LACP protocol messages is 1 second, it takes at least three seconds from the occurrence of faults to the detection of line faults by the protection processing program. In one embodiment of the present invention, a hardware circuit is used to detect line failure; if a failure is detected, the protection processing program is quickly notified to switch the port state. In this way, the time from the occurrence of the fault to the detection of the fault by the program can reach 10ms or less. The above-mentioned hardware circuit can be selected from a circuit that can detect physical signal faults, such as an optical fiber signal detection circuit and an Ethernet physical layer detection circuit. These circuits can use corresponding methods in the prior art to detect line faults. For example, the optical fiber signal detection circuit can detect line faults by detecting the power of the op...

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Abstract

This invention provides a method for applying protection with link aggregation including: a test circuit tests the circuit of the receiving direction of a working port at the link aggregation in the aggregated device of both parties and when the circuit of the receiving direction of a port in one device is faulty, the device responds the faulty information to give protection and urges the other one to give protection, in which, the inform steps can b realized by the following mode: 1, setting a signal of stopping transmission of a port, 2, transmitting a message containing faulty information to the other device via a circuit of the transmission direction of a port or other port at the link aggregation of said device. This invention also provides related devices and a system.

Description

technical field [0001] The present invention relates to the application of link aggregation, and more specifically, to a method, device and system for implementing protection by using link aggregation. Background technique [0002] Link aggregation technology, also known as trunk technology (Trunking) or bundling technology (Bonding), its essence is to "combine" several physical links between two devices into one logical link. The current link aggregation technology standard is IEEE Standard 802.3ad, formulated by the IEEE802 committee. Link Aggregation Control Protocol (LACP, Link Aggregation Control Protocol) is one of the main contents of the IEEE 802.3ad standard, and defines a standard aggregation control method. The devices on both sides of the aggregation exchange aggregation information through the protocol, and automatically aggregate the matching links together to send and receive data according to the parameters and status of both parties. After the aggregation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/24H04L29/06
Inventor 权星月
Owner HUAWEI TECH CO LTD
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