1588 message processing method, device and communication equipment

Abstract

Disclosed are a 1588 packet processing method and apparatus, and a communication device. The method comprises: identifying the original EtherType of a received 1588 packet; according to a predetermined mapping manner, modifying the original EtherType; and sending the 1588 packet with the modified EtherType to a packet processor. The present invention solves the problem of incapability of the packet processor in identifying the EtherType of a 1588 packet in the prior art, so as to achieve the effect of enabling the packet processor to identify the EtherType of a 1588 packet.

Description

technical field [0001] The present invention relates to the communication field, in particular to a 1588 message processing method, device and communication equipment. Background technique [0002] With the rapid development of the 3rd generation mobile communication (3rd Generation, 3G for short) network, the 1588 time synchronization protocol has been paid more and more attention and applied in the communication network. Domestic and foreign operators are using the 1588 protocol more for time synchronization to gradually replace the previous use of the Global Position System (Global Position System, GPS for short) for time synchronization. [0003] In the 1588 time synchronization protocol, four clock modes are defined, which are common clock, boundary clock, transparent clock, and normal + transparent clock. There are two types of clock synchronization mechanisms, namely an E2E (End To End, end-to-end) synchronization mechanism and a P2P (Point To Point, point-to-point) ...

AI Technical Summary

Problems solved by technology

figure 1 is a schematic diagram of a clock network communication device according to related technologies, such as figure 1 As shown in the figure, the physical hardware at the front end of the device is responsible for identifying the EtherType of 1588 packets and stamping time stamps on event packets of the 1588 protocol. The packet processor at the back end of the device is responsible for forwarding 1588 packets, but the packet processor cannot identify the Text EtherType

[0004] Since the 1588 message belongs to the application layer protocol in the Transmission Control Protocol (Transfer Control Protocol, referred to as TCP) / Internet Protocol (Internet Protocol, referred to as IP) model, many low-end packet processors responsible for forwarding the 1588 message Only the content of the second and third layers can be recognized, but the content of the application layer cannot be recognized

Therefore, the packet processor can only recognize the EtherType or UDP port, but cannot recognize the EtherType of the 1588 message, and the packet processor cannot process the 1588 message normally, so that it cannot be based on the 1588 clock model, clock synchronization mechanism, clock status and clock synchronization method. Correctly process the message, unable to realize various complex clock modes in the 1588 time synchronization protocol

[0005] Aiming at the problem that the packet processor cannot recognize the EtherType of the 1588 message in the related technology, no effective solution has been proposed yet

Images