NETWORK TOPOLOGY DISCOVERY METHOD DEVICE AND SYSTEM

摘要

A method, device, and system for network topology discovery are provided. The method includes: a second network device receives a first LLDP packet transmitted by the first network device. The first LLDP packet includes first slice information, and the first slice information is used to indicate a network slice to which the first port of the first network device belongs. The second network device sends the first slice information and the second slice information to the management device. The second slice information is used to indicate a network slice to which the second port of the second network device belongs. In this way, the slice information can be advertised among the LLDP neighbor devices, and the LLDP neighbor devices can report the slice information to the management device, so that the management device obtains the slice information of the managed device in a timely manner and network Helps determine topology information of slices.