摘要:
An apparatus comprising one or more processors configured to implement a plurality of operations for an operating system (OS) platform including a kernel and a user application, one or more shared resource blocks by the kernel and the user application, and one or more shared locks by the kernel and the user application corresponding to the shared resource blocks, wherein the user application is configured to synchronize accesses to the shared resource blocks between a user thread and a kernel thread by directly accessing the locks without using a system call to the kernel.
摘要:
A method for implementing network virtualization, and a related apparatus and a communications system are provided. The method for implementing network virtualization may include: receiving, by an SDN controller, a virtual network creation request that carries virtual network topology information; creating a virtual network in response to the virtual network creation request; establishing, by the SDN controller, a device mapping relationship; establishing, by the SDN controller, a port mapping relationship; allocating, by the SDN controller, a virtual SDN controller to the virtual network; and registering, by the SDN controller, the first virtual forwarding device and the second virtual forwarding device with the virtual SDN controller. Technical solutions of embodiments of the present invention help to improve networking flexibility, reduce service costs, and shorten a service deployment period.
摘要:
Embodiments of the present invention provide a packet sending method, a router, and a service switching entity. According to the packet sending method provided in the embodiments of the present invention, a router determines a flow group identifier of a service packet and information about a next-hop service switching entity according to a user identifier and IP 5-tuple information; and forwards the packet to the next-hop service switching entity according to the information about the next-hop service switching entity, so that the next-hop service switching entity determines a corresponding destination service instance according to the user identifier, the flow group identifier, a router identifier, and a processing result, and forwards the packet to the destination service instance, to perform corresponding service processing, thereby implementing service packet forwarding among service instances. The router in the method provided in the embodiments has a flow steering function, and steers a flow to a specified path to perform node-by-node processing.
摘要:
Embodiments of the present invention disclose a flow entry delivering method, a flow entry storage method, a related apparatus, and a related system. A controller obtains a device identifier of a network device and at least one flow entry that is used to perform a function on the network device. The controller obtains storage information of the network device according to the device identifier, and the storage information includes free space in storage space of the network device that is used to store a flow entry. The controller compares the free space with a total capacity of the at least one flow entry. The controller determines, according to a comparison result, whether the network device has sufficient free storage space to store the at least one flow entry. When the network device has the storage space greater than or equal to the capacity of the flow entry, the controller delivers the at least one flow entry, or when the network device has no storage space to store the flow entry, the controller does not deliver the at least one flow entry, thereby improving a success rate of delivering a flow entry by the controller.