METHOD FOR UPGRADING NETWORK DEVICE VERSION AND NETWORK DEVICE

摘要

Embodiments of the present invention relate to the field of communications, and disclose a method for upgrading a version of a network device and a device, which resolve a technical problem that a large quantity of broadcast packets need to be sent during version upgrade of a network device, leading to occupation of excessive network bandwidth and causing network congestion. A specific solution is: configuring a forwarding plane of the network device to be a first forwarding plane and a second forwarding plane; performing, in the first forwarding plane, sampling on forwarded packets by using a preset sampling ratio, to obtain a sample packet; forwarding, by the second forwarding plane, the sample packet in a broadcast manner, to learn a MAC address; and when a quantity of MAC addresses learned by the second forwarding plane reaches a preset threshold, performing upgrade so that the second forwarding plane is used for packet forwarding of the network device. The technical solution provided by the embodiments of the present invention can effectively avoid generation of a large quantity of broadcast packets during a version upgrade process, can help reduce network bandwidth that is excessively occupied, and avoid network congestion.