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公开(公告)号：EP4443845A1
公开(公告)日：2024-10-09
申请号：EP22918287.8
申请日：2022-11-11
发明人： YE, Qiuhong , HE, Zijian , LAM, Wan
摘要： This application provides a data exchange method and apparatus, and relates to the field of communication technologies, to improve exchange efficiency of a data exchange network and reduce an exchange delay. The method includes: A source node receives flow indication information from a first switching node, where the flow indication information indicates that congestion occurs in a target data flow, and the first switching node is a node in a switching path of the target data flow. The source node sends multiple pieces of write data information and multiple data blocks of the target data flow to multiple switching nodes, where the multiple pieces of write data information indicate the multiple switching nodes to store the multiple data blocks and stop forwarding the multiple data blocks. The multiple switching nodes store the multiple data blocks based on the multiple pieces of write data information. The multiple switching nodes receive multiple pieces of scheduling information from a destination node, where the multiple pieces of scheduling information are used to schedule the multiple data blocks. The multiple switching nodes send the multiple data blocks to the destination node.
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公开(公告)号：EP3902215A1
公开(公告)日：2021-10-27
申请号：EP19908321.3
申请日：2019-12-31
发明人： HE, Zijian , LU, Hui , WANG, Linchun , YAN, Xingtao , LIU, Yang , YANG, Wenzong , YU, Jingzhou , YU, Xiang
IPC分类号： H04L12/803
摘要： This application provides a data transmission method and a network device. The method includes: sending, by a first network device, request information to a second network device; receiving, by the first network device, grant information sent by the second network device, where the grant information includes a first sequence number; determining, by the first network device, a first credit limit based on the first sequence number, where the first credit limit is an amount of data that is allowed to be sent by the first network device in a packet-distributed load sharing manner; and sending, by the first network device, data to the second network device based on the first credit limit. In the foregoing technical solution, the first network device determines, based on the grant information sent by the second network device, the amount of data that is allowed to be sent in the packet-distributed load sharing manner, and further sends data to the second network device based on the amount of data. This can avoid that an amount of data sent exceeds an amount of data that can be cached and ordered by the second network device, thereby avoiding out-of-order sending of data packets from the second network device.
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