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Method and device for physical layer port channelization

A sublayer and data processing technology, applied in the field of communication, can solve the problem that the port channelization scheme cannot be used universally

Active Publication Date: 2020-03-10
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For low-speed Ethernet ports, there are currently multiple encoding methods, such as 4B / 5B, 8B / 10B, etc. For ports with different rates, the FlexE port channelization solution cannot be used universally

Method used

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  • Method and device for physical layer port channelization
  • Method and device for physical layer port channelization
  • Method and device for physical layer port channelization

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Embodiment Construction

[0065] The technical solution in this application will be described below with reference to the accompanying drawings.

[0066] First, the Ethernet system 100 involved in this application is introduced. Such as figure 1 As shown, the Ethernet system 100 includes a sending device 101 , a forwarding device 102 and a receiving device 103 . The sending device 101 , the forwarding device 102 and the receiving device 103 are connected in series. The Ethernet frame to be transmitted is sent by the sending device 101 , passes through the forwarding device 102 , and finally reaches the receiving device 103 .

[0067] It should be noted, figure 1 Only one forwarding device, forwarding device 102, is shown. It should be understood that multiple forwarding devices may be included between the sending device 101 and the receiving device 103 . The Ethernet frame to be transmitted is sent by the sending device 101 , forwarded by multiple forwarding devices, and finally reaches the receiv...

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PUM

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Abstract

The invention provides a data processing method and device. The method is applied to communication equipment comprising a first sub-layer. A physical sub-layer is added on a physical coding sub-layerPCS of a physical layer; the physical sub-layer is connected with media independent interfaces xMII with different Ethernet rates; interleaving of data signals from a plurality of different media access control clients (MACclients) is realized through the physical sub-layer, and then the PCS is indicated to correspondingly encode xMII signals through a tx_cmd instruction, and finally the xMII signals are sent out through a port. According to the method, the coding function of the PCS can be continuously used, so that interleaving and coding decoupling are realized, crossing is carried out based on the xMII interface, port channelization can be realized for ports with multiple rates, and meanwhile, when the number of service flows in the transmission process is too large, transmission of high-priority services is ensured, and bandwidth waste caused by frame preemption is avoided.

Description

technical field [0001] The present application relates to the communication field, and more specifically, to a method and device for implementing port channelization at the physical layer. Background technique [0002] Port channelization technology can improve the deterministic and low-latency characteristics of network applications. For example, for a fixed 100Gbps port, it can be divided into sub-rates required by multiple services, specifically, it can be divided into different sub-rates such as 5G, 20G, and 40G; at the same time, port channelization uses a forwarding method similar to straight-through, It eliminates the time-consuming table lookup and queuing used by the traditional store and forward mechanism, and further provides determinism and low latency, so as to better isolate various services. [0003] Currently, in the Ethernet, the port channelization technology mainly includes flexible Ethernet (flex ethernet, FlexE). The realization of FlexE is only based ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04W28/06H04W28/24
CPCH04L1/0071H04W28/065H04W28/24H04L1/0041H04L25/4908H04J2203/0085H04L12/40006H04L49/352H04L49/40
Inventor 徐丽查敏汪仁磊朱志刚
Owner HUAWEI TECH CO LTD