Title:
PACKET FORWARDING METHOD, DEVICE AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2021/063191
Kind Code:
A1
Abstract:
Provided are a packet forwarding method, device and system. The method comprises: a first network device receives a first message sent by a second network device via a second egress port of the second network device, the first message being used to measure a phase difference, the phase difference being a phase difference between a switching time of one first buffer among multiple first buffers of a first egress port of the first network device and a switching time of one second buffer among multiple second buffers of the second egress port of the second network device when taking link delay into account; the first network device determines the phase difference according to the first message; the first network device schedules a second data packet sent via the first egress port according to the phase difference. Thus, the first network device and the second network device realize queuing and forwarding of data packets without relying on time synchronization.
Inventors:
CHEN LIHAO (CN)
WANG TONGTONG (CN)
WANG TONGTONG (CN)
Application Number:
PCT/CN2020/116013
Publication Date:
April 08, 2021
Filing Date:
September 17, 2020
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04J3/06
Foreign References:
| CN102299788A | 2011-12-28 | |||
| CN109787919A | 2019-05-21 | |||
| US20170264556A1 | 2017-09-14 | |||
| CN104620548A | 2015-05-13 | |||
| CN105553590A | 2016-05-04 | |||
| CN201910937790A | 2019-09-30 | |||
| CN201911057482A | 2019-11-01 |
Other References:
FALK JONATHAN; DURR FRANK; ROTHERMEL KURT: "Exploring Practical Limitations of Joint Routing and Scheduling for TSN with ILP", 2018 IEEE 24TH INTERNATIONAL CONFERENCE ON EMBEDDED AND REAL-TIME COMPUTING SYSTEMS AND APPLICATIONS (RTCSA), IEEE, 28 August 2018 (2018-08-28), pages 136 - 146, XP033495993, DOI: 10.1109/RTCSA.2018.00025
See also references of EP 4030646A4
See also references of EP 4030646A4
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