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1588v2 message transmission method and device based on wan interface

A message transmission and message technology, applied in the field of communication, can solve the problem of high complexity of 1588V2 messages, and achieve the effect of reducing complexity

Active Publication Date: 2019-01-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, inserting 1588V2 sliced ​​packets into the OH overhead section for transmission requires a cooperative module to slice and reassemble 1588V2 packets, which leads to high complexity in the transmission of 1588V2 packets

Method used

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  • 1588v2 message transmission method and device based on wan interface
  • 1588v2 message transmission method and device based on wan interface
  • 1588v2 message transmission method and device based on wan interface

Examples

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Embodiment 1

[0061] The embodiment of the present invention provides a 1588V2 message transmission method based on the WAN interface, such as figure 1 As shown, the method includes:

[0062] 101. The sending end encapsulates the 1588V2 message.

[0063] Among them, 1588V2 is a precision time synchronization protocol standard released by the IEEE (Institute of Electrical and Electronics Engineers, Institute of Electrical and Electronics Engineers) standards organization. In the embodiment of the present invention, the 1588V2 message may be a message of 44 bytes to 64 bytes, including a 34-byte message header, 10-byte time information and other message information. Wherein, the time information may be the time information of the 1588V2 message at the sending end.

[0064] For the embodiment of the present invention, the sender can encapsulate the 1588V2 message so that the 1588V2 message carries a message header, which includes SMAC (Source Media Access Control, source address), DMAC (Dest...

Embodiment 2

[0086] The embodiment of the present invention provides a 1588V2 message transmission method based on the WAN interface, such as Figure 4 As shown, the method includes:

[0087] 401. The receiving end receives the data frame carrying the 1588V2 message sent by the sending end.

[0088] Wherein, the 1588V2 message may be a message of 44 bytes to 64 bytes, including a message header of 34 bytes and time information of 10 bytes to 30 bytes. The time information in the 1588V2 message may be the time information of the 1588V2 message at the sending end. The message header includes SMAC, DMAC and Etype. Wherein, Etype is used to specify the Ethernet type of the 1588V2 message. Specifically, if Etype is 88F7, specify the Ethernet type of the 1588V2 packet as the Layer 2 Ethernet type; if Etype is 0800, specify the Ethernet type of the 1588V2 packet as the IPv4 type of the Layer 3 Ethernet; if Etype is 86DD, specify The Ethernet type of the 1588V2 packet is the IPv6 type of Layer...

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Abstract

The embodiment of the invention discloses a 1588V2 message transmission method and device based on a WAN interface, relates to the technical field of communication, and can reduce the complexity of 1588V2 message transmission. The method includes: first, the sending end inserts the 1588V2 message into the payload area of ​​the data frame, and sends the data frame carrying the 1588V2 message to the receiving end; then the receiving end receives the data frame carrying the 1588V2 message sent by the sending end. data frame, and obtain the receiving time of the received data frame; finally, the receiving end performs time synchronization adjustment on the receiving time. The embodiment of the present invention is applicable to the transmission of 1588V2 messages between networks.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a 1588V2 message transmission method and device based on a WAN interface. Background technique [0002] With the increasingly widespread application of IP (Internet Protocol, Internet Protocol) networks, the interaction between IP networks and SDH (Synchronous Digital Hierarchy, Synchronous Digital Hierarchy) networks and between IP networks is becoming more and more frequent. Wherein, message transmission is performed between the IP network and the SDH network and between the IP network and the IP network through a WAN (Wide Area Network, wide area network) interface. [0003] At present, in the process of transmitting 1588V2 packets based on the WAN interface, the sending end slices the 1588V2 packets by cooperating with the module, and inserts them into the OH (Overhead, system overhead) overhead section for transmission; The 1588V2 sliced ​​messages are extracted from...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/955H04J3/06H04L47/43H04L47/431H04L45/74
CPCH04J3/0667H04L2012/5652H04L61/2592H04L2101/622H04L12/2854H04L45/745
Inventor 陈立清林涛
Owner HUAWEI TECH CO LTD