EDGE DATAPATH USING USER-KERNEL TRANSPORTS

摘要

A novel design of a gateway that handles traffic in and out of a network by using a datapath daemon is provided. The datapath daemon is a run-to-completion process that performs various data-plane packet-processing operations at the edge of the network. In some embodiments, the datapath daemon dispatches packets to other processes or processing threads outside of the daemon. In some embodiments, the datapath daemon dispatches packets to a kernel network stack in order to support packet traffic monitoring.

主权项

1. A method comprising:
receiving a packet at a gateway of a logical network, the logical network comprising a set of logical entities as a data path for forwarding the packet to its destination; and executing a plurality of pipeline stages for the received packet, the plurality of pipeline stages corresponding to logical entities along the data path, wherein executing a pipeline stage comprises replicating a packet to a network stack when the pipeline stage comprises a specified observation point.