US 12,034,636 B2
Packet processing method and network apparatus
Quangao Wan, Dongguan (CN); Taixu Tian, Dongguan (CN); Huadong Xu, Dongguan (CN); Zhongzhen Wang, Beijing (CN); and Jiakui Song, Dongguan (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by HUAWEI TECHNOLOGIES CO., LTD., Guangdong (CN)
Filed on Jul. 28, 2021, as Appl. No. 17/386,657.
Application 17/386,657 is a continuation of application No. PCT/CN2020/078610, filed on Mar. 10, 2020.
Claims priority of application No. 201910272143.0 (CN), filed on Apr. 4, 2019.
Prior Publication US 2021/0359939 A1, Nov. 18, 2021
Int. Cl. H04L 12/741 (2013.01); H04L 12/721 (2013.01); H04L 12/733 (2013.01); H04L 45/00 (2022.01); H04L 45/74 (2022.01)
CPC H04L 45/74 (2013.01) [H04L 45/20 (2013.01); H04L 45/38 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A method performed by a first network node, the method comprising:
receiving a first packet;
determining a flow identification corresponding to the first packet, where the first packet does not comprise the flow identification, a feature of the first packet corresponds to the flow identification, and the feature of the first packet is located in a header of the first packet;
obtaining, based on the first packet and the flow identification, a second packet, wherein the second packet is an internet protocol version 6 (IPv6) packet, the second packet comprises (i) a field comprising the flow identification and (ii) an inband operations, administration and maintenance (IOAM) header, and the field comprising the flow identification is located in a hop-by-hop options header of the second packet before the IOAM header of the second packet; and
sending the second packet to a second network node.