| 摘要 |
Embodiments of the present application provide a network performance monitoring method and apparatus. The apparatus records a time (e.g. a first time) at which a first network device sends a first packet to a second network device, records a time (e.g. a second time) at which the first network device receives a response packet of the first packet, and determines a round-trip delay between the first and second network devices according to the first and second times; within a preset time, the apparatus collects statistics about a quantity (e.g. a first count) of first packets that are sent by the first network device to the second network device, and collects statistics about a quantity (e.g. a second count) of retransmitted packets in the first packets, and determines a packet loss rate from the first network device to the second network device according to the first and second counts. |
| 主权项 |
1. A network performance monitoring method, the method comprising:
receiving, by a network performance monitoring apparatus, a second packet sent by a first network device, wherein the second packet is a duplicate packet of a first packet, the second packet is copied when the first network device sends the first packet to a second network device, a destination receive end of the first packet is the second network device, a type of the first packet is a packet of a traffic flow transmitted by using one of: a connection-oriented protocol and a packet that is used to establish a connection, and the connection is used to transmit a traffic flow by using a connection-oriented protocol; recording, by the network performance monitoring apparatus, a first time, wherein the first time is a time at which the network performance monitoring apparatus receives the second packet; receiving, by the network performance monitoring apparatus, a fourth packet sent by the first network device, wherein the fourth packet is a duplicate packet of a third packet, the fourth packet is copied when the first network device receives the third packet sent by the second network device, a type of the third packet is the same as the type of the first packet, and a source transmit end of the third packet is the second network device, when the network performance monitoring apparatus determines that the fourth packet is a response packet of the second packet; recording, by the network performance monitoring apparatus, a second time, wherein the second time is a time at which the network performance monitoring apparatus receives the fourth packet; and determining, by the network performance monitoring apparatus, a round-trip delay between the first network device and the second network device according to the first time and the second time. |
