A vehicle data communication system includes a server-side electronic control unit and a client-side electronic control unit configured to communicate data with each other via a communication path. The server-side electronic control unit includes a server-side communication band setting unit configured to work in conjunction with server-side service discovery. The client-side electronic control unit includes a client-side communication band setting unit configured to work in conjunction with client-side service discovery. The server-side communication band setting unit and the client-side communication band setting unit are configured to dynamically set a predetermined communication band.

Various embodiments establish a virtual private network (VPN) between a remote network and a private network. In one embodiment, a first system in the remote network establishes a connection with a central system through a public network. The central system is situated between the first system and a second system in the private network. The first system receives, from the central system and based on establishing the connection, a set of VPN information associated with at least the second system. The first system disconnects from the central system and establishes a VPN directly with the second system through the public network based on the set of VPN information.

A VPN implementation method and a PE device are provided. The method includes: sending VPN topology information of a local end to a PE device at a peer end, and receiving VPN topology information of the peer end sent by the PE device at the peer end; enabling, according to the VPN topology information of the local end and the VPN topology information of the peer end, the local end and the peer end to select a jointly supported topology; and connecting VPN members by using the jointly supported topology, so as to implement the VPN. A VPN in a multi-topology environment may be implemented, and service quality of a multi-topology VPN may be improved.

In general, this disclosure describes techniques for coordinating, with a cloud exchange, automated cloud-based disaster recovery across containers from a failed cloud service to a backup cloud service. In some examples, an orchestration engine for a cloud exchange is configured to: detect an indication of a disruption in a first cloud service provided by a first cloud service provider network coupled to the cloud exchange to send and receive data packets via the cloud exchange; provision, in response to detecting the indication of the disruption in the first cloud service, disaster recovery infrastructure layers in containers of a second cloud service provided by a second cloud service provider network coupled to the cloud exchange; obtain code and state from containers of the first cloud service; and communicate the code and state to the disaster recovery infrastructure layers in the containers of the second cloud service.

Techniques for hot swapping and hot scaling containers between cloud services are disclosed. In one example, a method includes storing, with a cloud exchange, data indicating an association of a first container of a first private network with a second container of a second private network, wherein the first private network and the second private network are coupled to the cloud exchange to send and receive data packets via the cloud exchange. The method further includes sending, with the cloud exchange based on the association, state of the first container to the second container.

Techniques are disclosed for facilitating inter-container communications, via a cloud exchange, for containers executing at logically isolated networks. In one example, the techniques of the disclosure provide a method including sending, by a container to a cloud exchange via an application programming interface exposed by an interconnection platform of the cloud exchange, container registration data for the container, the container registration data including a network address for a host that executes the container and a container identifier for the container.

Various embodiments establish a virtual private network (VPN) between a remote network and a private network. In one embodiment, a first system in the remote network establishes a connection with a central system through a public network. The central system is situated between the first system and a second system in the private network. The first system receives, from the central system and based on establishing the connection, a set of VPN information associated with at least the second system. The first system disconnects from the central system and establishes a VPN directly with the second system through the public network based on the set of VPN information.

Various embodiments establish a virtual private network (VPN) between a remote network and a private network. In one embodiment, a first system in the remote network establishes a connection with a central system through a public network. The central system is situated between the first system and a second system in the private network. The first system receives, from the central system and based on establishing the connection, a set of VPN information associated with at least the second system. The first system disconnects from the central system and establishes a VPN directly with the second system through the public network based on the set of VPN information.

Various embodiments establish a virtual private network (VPN) between a remote network and a private network. In one embodiment, a first system in the remote network establishes a connection with a central system through a public network. The central system is situated between the first system and a second system in the private network. The first system receives, from the central system and based on establishing the connection, a set of VPN information associated with at least the second system. The first system disconnects from the central system and establishes a VPN directly with the second system through the public network based on the set of VPN information.

Embodiments of this application provide a method and an apparatus for obtaining a network slice identifier. In the method, a wireless access device receives a first service packet sent by a terminal; the wireless access device obtains a second service packet based on the first service packet, where the second service packet includes the first service packet and a network slice identifier; and the wireless access device sends the second service packet to a forwarding device.