摘要:
Some embodiments provide a managed network for implementing a logical switching element. The managed network includes several managed edge switching elements that are each for (1) receiving packets for forwarding through the logical switching element and (2) forwarding packets that are known to the managed edge switching element to other managed edge switching elements in the several managed edge switching elements. The managed network includes a set of managed non-edge switching elements for (1) receiving packets from the several managed edge switching elements that are unknown to a particular managed edge switching element in the several managed edge switching elements and (2) forwarding packets to the several managed edge switching elements that are unknown to the several managed edge switching elements.
摘要:
Some embodiments provide a method that processes network data through a network. The method receives a packet destined for a network host associated with a logical datapath set implemented by a set of managed edge switching elements and a set of managed non-edge switching elements in the network. The method determines whether the packet is a known packet. When the packet is a known packet, the method forwards the packet to a managed switching element in the set of managed edge switching elements for forwarding to the network host. When the packet is not a known packet, the method forwards the packet to a managed switching element in the set of managed non-edge switching elements for further processing.
摘要:
Some embodiments provide a novel method for forwarding a packet at a first managed interconnection switching element in a managed network of interconnection switching elements. The method receives a packet from a source machine on a first network segment in a first network. The packet identifies a destination machine located on a second network segment in a second, different network. The method removes a context tag that identifies the first network segment. The method uses the identification of the first network segment to determine a logical switching element that connects at least the first and second network segments. The method encapsulates the packet with a logical context identifier that identifies a logical port of the logical switching element. The logical port corresponds to the second network segment. The method transmits the twice-encapsulated packet towards a second managed interconnection switching element at the second network.
摘要:
Some embodiments provide a control system for managing a network that includes several switching elements managed by the control system. The system includes several controller instances for managing the switching elements. Each particular controller instance includes a coordination manager for communicating with the coordination managers of the other controllers in order to partition control of the plurality of switching elements by electing a master controller for different sets of switching elements. The particular controller instance also includes a storage for storing control data for controlling the set of managed switching elements managed by the controller instance, and a switch interface for passing the control data to the set of managed switching elements.
摘要:
A network controller for managing a set of interconnection switching elements that connect segmented networks to a shared physical interconnection network. The network controller includes i) an interface for receiving a logical control plane definition of a logical switching element that couples to a set of network segments at different segmented networks; ii) a control application for translating the logical control plane definition of the logical switching element into a first set of flow entries in a logical forwarding plane; and iii) a virtualization application for translating the first set of flow entries into a second set of flow entries in a physical control plane. The flow entries in the physical control plane are for subsequent conversion by the managed interconnection switching elements into a third set of flow entries in a physical forwarding plane that directs the forwarding of network data by the managed interconnection switching elements.
摘要:
Some embodiments provide a distributed control system for controlling managed switching elements of a network. The distributed control system comprises a first network virtualizer for converting a first set of input logical forwarding plane data to a first set of output physical control plane data. It also includes a second network virtualizer for converting a second set of input logical forwarding plane data to a second set of output physical control plane data. In some embodiments, the physical control plane data is translated into physical forwarding behaviors that direct the forwarding of data by the managed switching elements.
摘要:
Some embodiments provide a network architecture that includes several lower level managed switching elements for forwarding network data to several of network hosts. The network architecture includes a set of higher level managed switching elements. The several lower level managed switching elements and the set of higher level managed switching elements implement several logical datapath sets. Communication channels are established among the several lower level managed switching elements and the set of higher level managed switching elements based on a mesh topology.
摘要:
Some embodiments provide a novel network control system for managing a set of switching elements in a network. The network control system includes a first set of network controllers for managing a first set of switching elements that enable communication between a first set of machines. The network control system includes a second set of network controllers for managing a second set of switching elements that enable communication between a second set of machines. The second set of switching elements is separate from the first set of switching elements and the second set of machines is separate from the first set of machines. The network control system includes a third set of network controllers for managing the first and second sets of network controllers in order to enable communication between machines in the first set of machines and machines in the second set of machines.
摘要:
A network control system for interconnecting several separate networks. The system includes i) several interconnection switching elements, each of which is for connecting one of the separate networks to a common interconnecting network, ii) a first set of network controllers for managing a first set of the interconnection switching elements at a first set of separate networks in order for machines at different networks within the first set to communicate with each other, iii) a second set of network controllers for managing a second set of interconnection switching elements at a second set of separate networks in order for machines at different networks within the second set to communicate with each other, and iv) a third set of network controllers for managing the first and second sets of network controllers in order for machines at networks in the first set to communicate with machines at networks in the second set.
摘要:
A network control system that includes a first set of network controllers for (i) receiving a logical control plane definition of a logical switching element that couples to both a first set of network hosts in a first domain and a second set of network hosts in a second domain, (ii) translating the logical control plane definition of the logical switching element into a first set of flow entries in a first logical forwarding plane, and (iii) translating the first set of flow entries into a second set of flow entries in a second logical forwarding plane. The network control system includes a second set of network controllers in the first domain for (i) receiving a portion of the second set of flow entries and (ii) translating the portion of the second set of flow entries into a third set of flow entries in a physical control plane.