US 11,777,857 B2Granted

Service forwarding method and network device

AssigneeHuawei Technologies Co., Ltd.

InventorsYuanlong Jiang, Hengjun Zhu, Hongguang Guan

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Abstract

This application relates to the field of communications technologies, and discloses a service forwarding method and a network device that performs such method. The method includes: forwarding, by a first network device, a data packet of a first service to a second network device in a period (T1); and if the data volume of the forwarded first service reaches a threshold, forwarding, by the first network device, a data packet of a second service to the second network device. The first service is a low-latency service, and the second service is a non-low-latency service. In addition, the period (T1) is determined based on a delay allowed by a device for forwarding the data packet of the first service, and the threshold is a value determined based on a maximum transmission rate of the first service.

Claims16

Dependent claims

A service forwarding method, comprising:

obtaining a service request of a first service, wherein the service request of the first service comprises a first delay (tm), and the first delay (tm) is a transmission delay value allowed for the first service from an ingress node to an egress node;
determining a period (T1) based on the service request of the first service and a hop count (h) along a path that is used to transmit a data packet of the first service;
and
sending the period (T1) to a first network device configured to forward the data packet of the first service along the path;
wherein the determining a period (T1) according to the service request of the first service and the hot count (h) comprises:
determining the period (T1) based on the first delay (tm), a second delay (td), and the hop count (h), wherein a value of the period (T1) is less than (tm−td)/(h+1), and the second delay (td) is a transmission delay value generated by a physical link comprised in a path to which the first network device belongs;
and the hop count (h) is a hop count comprised in the path, and the path is used to transmit the data packet of the first service.

4 more elements

A service forwarding apparatus, wherein the apparatus is disposed in a controller and comprises:

a processor;
and
a storage medium coupled to the processor and storing programming instructions for execution by the processor, the programming instructions instruct the processor to:
obtain a service request of a first service, wherein the service request of the first service comprises a first delay (tm), and the first delay (tm) is a transmission delay value allowed for the first service from an ingress node to an egress node;
determine a period (T1) according to a service request of the first service and a hop count (h) along a path that is used to transmit a data packet of the first service;
send the period (T1) to a first network device configured to forward the data packet of the first service along the path;
and
determine the period (T1) based on the first delay (tm), a second delay (td), and the hop count (h), wherein a value of the period (T1) is less than (tm−td)/(h+1), and the second delay (td) is a transmission delay value generated by a physical link comprised in a path to which the first network device belongs.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/475,531Filed 15 Sep 2021 · continuation
Priority: CN 201710461612.416 Jun 2017
Published: US 2022/0006744 A16 Jan 2022
Granted: 3 Oct 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

H04L 43/0852
Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters: delays
H04L 47/22
Flow control; Congestion control: traffic shaping
H04L 12/40202
Involving redundancy: by using a plurality of master stations
H04L 43/00
Arrangements for monitoring or testing data switching networks

Family

PCT/CN2018/091561Parent of this continuation · filed 15 Jun 2018
Application16/597,401Parent of this continuation · filed 9 Oct 2019
US 2022/0006744 A1Pre-grant publication · published 6 Jan 2022
US 11,140,085 B2Parent of this continuation
US 2020/0044974 A1Published application
US 11,777,857 B2This patent

From the US filing history. Foreign family members aren’t listed.