Method for encapsulating data of transmission equipment receiving side and transmitting side as well as synchronous digital system

A technology of transmission equipment and packaging method, applied in transmission systems, time division multiplexing systems, electrical components, etc., can solve the problems of reduced transmission reliability and software performance, so as to improve reliability and software performance, reduce The effect of CPU load

Inactive Publication Date: 2008-12-17
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this implementation method is that the exchange of communication data between network elements is based on routing information, and this encapsulation will cause the routing and forwarding of communication data to be completed by software, resulting in a decrease in software performance and lower transmission reliability.

Method used

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  • Method for encapsulating data of transmission equipment receiving side and transmitting side as well as synchronous digital system
  • Method for encapsulating data of transmission equipment receiving side and transmitting side as well as synchronous digital system
  • Method for encapsulating data of transmission equipment receiving side and transmitting side as well as synchronous digital system

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Embodiment Construction

[0031] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0032] As shown in 5, on the receiving side of the transmission device, the PPP protocol frame is encapsulated into an Ethernet protocol frame, and the process is as follows:

[0033] 101. The processing flow starts;

[0034] 102. Identify the protocol field type of the received data frame. The present invention is based on the transmission protocol standard of IP over PPP, so when receiving the PPP frame, it is judged whether the protocol domain is the IP protocol domain type or the non-protocol domain IP type;

[0035] 103. If the protocol domain is an IP protocol domain type, then take out the payload in the data frame, that is, the IP data packet encapsulated in the PPP protocol frame, and perform step 105;

[0036] 104. If the protocol domain is the PPP protocol domain type, that is, the non-IP protocol domain type, then take out the ...

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Abstract

The invention discloses a data encapsulation method for receiving side and sending side of a transmission apparatus and a synchronous digital system thereof. The encapsulation method for the receiving side comprises: A. identifying the protocol domain type of received data frame; B. acquiring play-load in the data frame; C. adding protocol domain type indication, source media access control sublayer protocol address and target media access control sublayer protocol address to the head of the play-load successively; D. calculating frame check sequence and adding the result to the tail of the play-load to form the Ethernet standard data frame. The method for encapsulating datum communicating among equipment net elements provided by the invention insures the route transmitting carried out by the hardware chip and reduces CPU load by encapsulating MAC address in the data frame and using Ethernet format in datum communicating among equipment net elements.

Description

technical field [0001] The invention relates to a method for encapsulating communication data between network elements of transmission equipment and a synchronous digital system. Background technique [0002] The ECC (Embed Communication Channel, Embedded Control Channel) channel in the transmission equipment is used to transmit network management information and other control information. The encapsulation method generally adopted when these information are transmitted between network elements is: the control information is transmitted through TCP / IP (transmission Control Protocol / Internet Protocol) for transmission, the network element side software encapsulates IP packets through PPP (Point to Point Protocol, Point-to-Point Protocol) for link layer transmission, and finally inserts them into DCC (Data Communications Channel, data transmission channel) bytes It is transmitted to other network elements at the physical layer through optical fibers. The disadvantage of this ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04J3/00
Inventor 邓华利
Owner ZTE CORP
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