Method and equipment for link aggregation

A link aggregation and device technology, applied in the field of network communication, can solve the problems of application packet loss, uncertain relationship, unreasonable settings, etc., and achieve the effect of reducing loss and improving reliability.

Inactive Publication Date: 2011-01-12
ZTE CORP
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Problems solved by technology

Therefore, if the timer of the sending state machine has not expired, the port status information of the local port cannot be notified to the peer port in time, so that the data frame sending and receiving functions cannot be enabled at the same time, and it is easy to cause the loss of application messages.
[0008] However, the durations of the respective timers of the above four state machines with timers are not clearly given in LACP, and the relationship between them is uncertain. Cur

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  • Method and equipment for link aggregation
  • Method and equipment for link aggregation

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Embodiment Construction

[0031] The basic idea of ​​the present invention is: close the data frame sending and receiving functions of all ports; when the timer of the sending state machine expires, select the logic state machine to select the aggregation group for the port, set and start timing the timer conforming to the state machine, and the composite state The port is ready to be added to the aggregation group selected by the port; when the timer of the composite state machine and the timer of the sending state machine expire at the same time, the composite state machine will add the port to the selected aggregation group, and the composite state machine according to the received Aggregation status information in the LACPDU message, enable the port data frame sending and receiving function, and transmit the application message.

[0032]In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing ...

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Abstract

The invention provides a method and equipment for link aggregation. The method comprises the following steps of: closing data frame transceiving functions of all ports; when a timer of a transmit machine is up to time, selecting an aggregation group for the ports by a selection logic machine, setting a timer of a Mux machine and starting timing, and preparing for adding the ports to the aggregation group by the Mux machine; and when the timers of the Mux machine and the transmit machine are up to time at the same time, adding the ports to the aggregation group by the Mux machine, and opening the data frame transceiving functions of the ports by the Mux machine according to the aggregation state information in the received LACPDU message to perform transmission of application message. The method and the equipment for the link aggregation ensure that the data frame transceiving functions are simultaneously opened by reasonably setting the time length of the timer of each machine, reduce the loss of the application message, and improve the reliability of the aggregation link transmission application message by closing the data frame transceiving functions in time when the aggregation link is abnormal.

Description

technical field [0001] The present invention relates to the field of network communication, in particular to a link aggregation method and equipment. Background technique [0002] Link Aggregation Control Protocol (Link Aggregation Control Protocol, LACP) is a protocol to achieve dynamic link aggregation. LACP aggregates one or more links together to form a link aggregation group (TRUNK), so that media access The control (MAC) application layer can treat the link aggregation group as a single link. After a link is added to a link aggregation group, application packets can be transmitted only after the data frame sending and receiving functions of the ports at both ends of the aggregation link in the link aggregation group are enabled, otherwise, the application packets will be lost . [0003] There are six state machines in LACP: Receive machine, Periodic Transmission machine, Selection Logic machine, Mux machine, Transmit machine ) and the Churn Detection machine. Usual...

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Application Information

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IPC IPC(8): H04L12/56H04L45/243
CPCY02B60/33H04L45/245Y02D30/50
Inventor 陈健叶傲马苗苗杜相文杨桂荣
Owner ZTE CORP
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