Physical controller
First Claim
1. A network control system for generating physical control plane data for managing a set of managed forwarding elements that implement forwarding operations associated with a logical datapath set, the system comprising:
- a first controller computer having one or more processing units for executing a program for (i) receiving logical control plane data that define the logical datapath set, and (ii) converting the logical control plane data to universal physical control plane (UPCP) data that define forwarding behaviors of the set of managed forwarding elements in terms of generic expressions of forwarding attributes of every managed forwarding element in the set of managed forwarding elements; and
a second controller computer having one or more processing units for executing a program for (i) receiving the UPCP data from the first controller computer, and (ii) converting the UPCP data to customized physical control plane (CPCP) data for defining a forwarding behavior of a particular managed forwarding element in terms of expressions of forwarding attributes that are specific to the particular managed forwarding element and not to the remaining managed forwarding elements in the set.
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Abstract
A network control system for generating physical control plane data for managing first and second managed forwarding elements that implement forwarding operations associated with a first logical datapath set is described. The system includes a first controller instance for converting logical control plane data for the first logical datapath set to universal physical control plane (UPCP) data. The system further includes a second controller instance for converting UPCP data to customized physical control plane (CPCP) data for the first managed forwarding element but not the second managed forwarding element.
253 Citations
24 Claims
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1. A network control system for generating physical control plane data for managing a set of managed forwarding elements that implement forwarding operations associated with a logical datapath set, the system comprising:
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a first controller computer having one or more processing units for executing a program for (i) receiving logical control plane data that define the logical datapath set, and (ii) converting the logical control plane data to universal physical control plane (UPCP) data that define forwarding behaviors of the set of managed forwarding elements in terms of generic expressions of forwarding attributes of every managed forwarding element in the set of managed forwarding elements; and a second controller computer having one or more processing units for executing a program for (i) receiving the UPCP data from the first controller computer, and (ii) converting the UPCP data to customized physical control plane (CPCP) data for defining a forwarding behavior of a particular managed forwarding element in terms of expressions of forwarding attributes that are specific to the particular managed forwarding element and not to the remaining managed forwarding elements in the set. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 23, 24)
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10. A first controller computer for a network control system that manages a set of managed forwarding elements that implement forwarding operations associated with a logical datapath set comprising a set of logical forwarding elements, the first controller computer comprising:
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an inter-controller communication interface for receiving universal physical control plane (UPCP) data from a second controller computer that generated the UPCP data from logical control plane data for the set of logical forwarding elements, wherein the received UPCP data comprises data that define forwarding behaviors of the set of managed forwarding elements in terms of generic expressions of forwarding attributes of every managed forwarding element in the set of managed forwarding elements; a conversion module, executable by at least one processing unit of the first controller computer, the conversion module for converting the received UPCP data to customized physical control plane (CPCP) data for defining a forwarding behavior of a particular managed forwarding element in terms of expressions of forwarding attributes that are specific to the particular managed forwarding element and not to the other managed forwarding elements in the set, wherein the particular managed forwarding element operates in a host machine separate from the first controller computer; and a communication interface for transmitting the CPCP data to the particular managed forwarding element in the host machine. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A non-transitory machine readable medium of a first controller computer of a network control system for managing a set of managed forwarding elements that implement forwarding operations associated with a logical datapath set, the non-transitory machine readable medium storing sets of instructions for:
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receiving universal physical control plane (UPCP) data from a second controller computer that generated the UPCP data from logical control plane data, wherein the received UPCP data comprises data that define forwarding behaviors of the set of managed forwarding elements in terms of generic expressions of forwarding attributes of every managed forwarding element in the set of managed forwarding elements; converting the UPCP data to customized physical control plane (CPCP) data for defining a forwarding behavior of a particular managed forwarding element in terms of expressions of forwarding attributes that are specific to the particular managed forwarding element and not to the remaining managed forwarding elements; and transmitting the CPCP data to the particular managed forwarding element. - View Dependent Claims (20, 21, 22)
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Specification