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Flexible Ethernet Shim layer cross delay optimization method and system

An optimization method, Ethernet technology, applied in the field of flexible Ethernet, can solve problems such as low delay, reduce the possibility of traffic congestion, reduce bandwidth, and enhance robustness

Pending Publication Date: 2022-07-22
FENGHUO COMM SCI & TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the analysis of the above implementation principles, it can be seen that the FlexE Shim cross-connection service of distributed switching devices across boards will introduce a fixed delay of 10us, which does not reflect the advantages of low-latency switching at the L1 layer (physical layer)

Method used

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  • Flexible Ethernet Shim layer cross delay optimization method and system
  • Flexible Ethernet Shim layer cross delay optimization method and system
  • Flexible Ethernet Shim layer cross delay optimization method and system

Examples

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Embodiment 1

[0035] see figure 2 As shown, this embodiment provides a flexible Ethernet Shim layer cross-delay optimization method, which specifically includes the following steps:

[0036] Step A. Use the FlexE Shim to restore the FlexE data stream on the entry board, delete the idle IDLE code block in the 66B code block corresponding to the Client, and restore the complete Ethernet Frame (data frame) after decoding; The frame is divided into data cells of equal length and forwarded to the destination egress card through the Fabric switching unit;

[0037] Step B. Restore the segmented data cells into Frames on the destination egress board; when a complete Frame is received, it is sent through the configured FlexE Shim time slot, and when no data stream is sent in the corresponding time slot, the IDLE frame.

[0038] It can be understood that, in this embodiment, the IDLE code block in the FlexE 66B code block will be deleted on the ingress side of the ingress board, decoded and restor...

Embodiment 2

[0060] Based on the same inventive concept, an embodiment of the present invention also provides a flexible Ethernet Shim layer cross-delay optimization system, which includes an ingress board processing module and an egress board processing module.

[0061] Among them, the entry board processing module is used to: use FlexE Shim to restore the FlexE data stream on the entry board, delete the idle IDLE code block in the 66B code block corresponding to the Client, and recover the complete Ethernet data after decoding. Frame: Divide the recovered Frame into data cells of equal length, and forward it to the destination egress card through the Fabric switching unit.

[0062] The egress board processing module is used to: restore the segmented data cells into frames at the destination egress board; when a complete frame is received, it is sent through the configured time slot of the FlexE Shim, and the corresponding time slot is not available. When the data stream is sent, an IDLE ...

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Abstract

The invention discloses a flexible Ethernet Shim layer cross delay optimization method and system, and relates to the technical field of flexible Ethernet. The method comprises the following steps of: recovering a FlexE data stream at an entrance board card by utilizing a FlexE Shim, deleting an IDLE code block in a 66B code block corresponding to a Client, and recovering a complete Ethernet Frame after decoding; the recovered Frame is segmented into data cells with the same length, and the data cells are forwarded to a target exit board card through a Fabric exchange unit; recovering the segmented data cell into Frame at the target exit board card; and when a complete Frame is received, sending the complete Frame through the time slot of the configured FlexE Shim, and sending an IDLE frame when no data stream is sent in the corresponding time slot. According to the invention, the average forwarding time delay of the FlexE Shim cross service on the distributed system can be greatly reduced, the bandwidth of the Fabric switching unit occupied by the FlexE Shim cross can be reduced, the traffic congestion is reduced, the robustness is enhanced, and the actual application requirements are met.

Description

technical field [0001] The invention relates to the technical field of flexible Ethernet, in particular to a method and system for optimizing the cross-delay of a flexible Ethernet Shim layer. Background technique [0002] FlexE (Flexible Ethernet), as a technology for implementing service isolation and network slicing in the bearer network, has developed rapidly in the past two years and has been widely accepted by major global operators and suppliers. FlexE slicing divides a physical Ethernet interface into multiple Ethernet flexible hard pipes based on time slot scheduling, so that the network has the characteristics of exclusive time slot and good isolation similar to TDM (Time Division Multiplexing, time division multiplexing). The dual characteristics of network statistical multiplexing and high network efficiency realize the function of statistical multiplexing of services within the same shard, and services between shards do not affect each other. Compared with trad...

Claims

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Application Information

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IPC IPC(8): H04L49/351H04L67/60
CPCH04L49/351
Inventor 周万涛门高鑫徐宁
Owner FENGHUO COMM SCI & TECH CO LTD
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