Abstract: Some embodiments provide novel methods for performing services for machines operating in one or more datacenters. For instance, for a group of related guest machines (e.g., a group of tenant machines), some embodiments define two different forwarding planes: (1) a guest forwarding plane and (2) a service forwarding plane. The guest forwarding plane connects to the machines in the group and performs L2 and/or L3 forwarding for these machines. The service forwarding plane (1) connects to the service nodes that perform services on data messages sent to and from these machines, and (2) forwards these data messages to the service nodes. In some embodiments, the guest machines do not connect directly with the service forwarding plane. For instance, in some embodiments, each forwarding plane connects to a machine or service node through a port that receives data messages from, or supplies data messages to, the machine or service node.

Abstract: The present utility model relates to an anti-theft device having an enclosed state and a folded state, and comprising at least three side surrounding frames capable of stretching out and drawing back along a width direction, the right edge of a side surrounding frame being rotatably connected to the left edge of a next side surrounding frame, and the left edge of the first side surrounding frame and the right edge of the last side surrounding frame being free edges, wherein when the anti-theft device is in the enclosed state, the left edge of the first side surrounding frame and the right edge of the last side surrounding frame are locked together and a closed area is formed by the side surrounding frames; when the anti-theft device is in the folded state, the at least three side surrounding frames stack on each other.