公开(公告)号：US09065764B2

公开(公告)日：2015-06-23

申请号：US13949832

申请日：2013-07-24

Applicant: Huawei Technologies Co., Ltd.

Inventor： Haitao Hu ,  Jinjin Chen ,  Zhiyong Yan

IPC: H04L12/28 ,  H04L12/725 ,  H04L12/54 ,  H04L12/46 ,  H04L12/833 ,  H04L12/851 ,  H04L12/911

CPC classification number: H04L45/302 ,  H04L12/4633 ,  H04L12/56 ,  H04L12/5602 ,  H04L47/2441 ,  H04L47/2458 ,  H04L47/825

Abstract: The present invention discloses a method for maintaining quality of service QoS, which includes: identifying a CLP and a service type of a newly received ATM cell, and obtaining a corresponding QoS label; when the QoS label corresponding to the newly received ATM cell is different from a QoS label corresponding to a buffered ATM cell, encapsulating the buffered ATM cell into a pseudo wire PW packet in a concatenation manner and sending the pseudo wire PW packet, where the QoS label corresponding to the buffered ATM cell is used as a QoS label of a PSN transport header of the PW packet, or is used as QoS labels of both the PSN transport header and a PW header of the PW packet, and buffering the newly received ATM cell. The present invention further provides a corresponding provider edge PE device and a corresponding ATM PWE3 system.

Abstract translation: 本发明公开了一种维护服务质量QoS的方法，包括：识别新接收的ATM信元的CLP和业务类型，获得相应的QoS标签; 当对应于新接收到的ATM信元的QoS标签与对应于缓存的ATM信元的QoS标签不同时，以缓存的方式将缓冲的ATM信元封装成伪线PW包，并发送伪线PW包，其中QoS 将与缓存的ATM信元相对应的标签用作PW分组的PSN传输报头的QoS标签，或者用作PW分组的PSN传输报头和PW报头的QoS标签，并缓存新接收的ATM 细胞。 本发明还提供了相应的提供商边缘PE设备和相应的ATM PWE3系统。