Abstract: This application provides a delay determining method and apparatus, and an intelligent driving device. The method includes: when a tail service node on a first data flow link sends a message including a first control instruction, or when the tail service node receives a message used to generate the first control instruction, obtaining a first message sent by the tail service node, and recording a first moment at which the first message is obtained; obtaining first delay information from the first message, where the first delay information is used to determine a second moment at which a head service node on the first data flow link sends first data, and the first data is used to generate the first control instruction; and determining a first end-to-end delay of the first data flow link based on the first moment and the second moment.

Abstract: The present invention provides a method and bypass device of IP allocation based on the network, the method comprising: establishing a mapping relation between the parameters of a visitor and an IP address; filing a request for visiting the network using the parameters of the visitor; performing authentication of AAA according to parameters of the visitor; finding the IP address corresponding to the successful parameters of the visitor from the mapping relation between the parameters of the visitor and the IP address and allocating the found IP address via DHCP to the network terminal being used by the visitor, to achieve the allocation of IP address based on the parameters of the visitor. The problem of the determination of the true identity of the visitor is solved and the safety of the network and the reasonable allocation of the network sources are improved.

Abstract: The present invention provides a recording method and recording system of log, the method comprising the steps of: generating an IP log, the content recorded by the IP log comprising at least an IP address and the operation being performed; finding the IP address in the IP log; replacing the found IP address with a user's information to obtain the ID log. With the present invention, the IP log is converted into ID log, in this way, the true user of the computer may be directly obtained through the ID log, the log information may provide the administrator of the system with very useful information on what is hazardous to the safety, which is significantly advantageous to the secret and security of the network of a company or an enterprise.