Communication method and apparatus

Abstract

In one example method, a network management unit sends a request message to a bus device. The request message is used to request to access a first configuration space register of the bus device, the request message includes a network address, first indication information, and information about the first configuration space register of the bus device, the network address is an address allocated by the network management unit to the bus device, and the first indication information indicates a type of an operation performed on the first configuration space register. The network management unit receives a response message from the bus device in response to the request message. The configuration space register of the bus device is accessed based on the network address and the information about the configuration space register of the bus device.

Dependencies are inferred from the claim text.