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US 11,706,159 B2Granted
Datapath for multiple tenants
AssigneeNicira, Inc.
InventorsRonghua Zhang, Yong Wang, Teemu Koponen, Xinhua Hong
Life of this patent
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AssigneeNicira, Inc.
InventorsRonghua Zhang, Yong Wang, Teemu Koponen, Xinhua Hong
Estimating the term…
A novel design of a gateway that handles traffic in and out of a network by using a datapath pipeline is provided. The datapath pipeline includes multiple stages for performing various data-plane packet-processing operations at the edge of the network. The processing stages include centralized routing stages and distributed routing stages. The processing stages can include service-providing stages such as NAT and firewall. The gateway caches the result previous packet operations and reapplies the result to subsequent packets that meet certain criteria. For packets that do not have applicable or valid result from previous packet processing operations, the gateway datapath daemon executes the pipelined packet processing stages and records a set of data from each stage of the pipeline and synthesizes those data into a cache entry for subsequent packets.
A method for implementing a gateway datapath that processes data messages sent between (i) a provider network on which one or more logical networks are implemented and (ii) an external physical network, the method comprising:
A non-transitory machine-readable medium storing a program which when executed by at least one processing unit implements a gateway datapath that processes data messages sent between (i) a provider network on which one or more logical networks are implemented and (ii) an external physical network, the program comprising sets of instructions for:
Dependencies are inferred from the claim text.