Abstract: Provided is a method and device for implementing Virtual Private Network (VPN) cross-domain, and a border node. The method includes that: a border node receives a advertisement message which carries VPN route information and is sent by a first node to a second node, wherein the border node supports Internet Protocol Version 6 Segment Routing (SRv6) capability, and the first node and the second node belong to different domains; and the border node assigns VPN identity information to a VPN route corresponding to the VPN route information, adds the VPN identity information into the advertisement message and sends the advertisement message to the second node, wherein the VPN identity information includes at least one of: a VPN Segment ID (SID) and a VPN label.

Abstract: A clock frequency is controlled by determining a cumulative duty cycle according to a ratio of a cumulative time, during an interval, that the clock frequency has a frequency greater than or equal to a design frequency threshold value to a duration of the interval. A frequency of the clock frequency is controlled to be a first frequency value when the cumulative duty cycle is less than a first duty cycle threshold; and controlled to be a second frequency value substantially less than the first frequency value when the cumulative duty cycle is greater than a second duty cycle threshold. The second duty cycle threshold is greater than or equal to the first duty cycle threshold.

Abstract: A clock frequency is controlled by determining a cumulative duty cycle according to a ratio of a cumulative time, during an interval, that the clock frequency has a frequency greater than or equal to a design frequency threshold value to a duration of the interval. A frequency of the clock frequency is controlled to be a first frequency value when the cumulative duty cycle is less than a first duty cycle threshold; and controlled to be a second frequency value substantially less than the first frequency value when the cumulative duty cycle is greater than a second duty cycle threshold. The second duty cycle threshold is greater than or equal to the first duty cycle threshold.