Method and apparatus for using a network information base to control a plurality of shared network infrastructure switching elements

摘要

Some embodiments provide a program for managing several switching elements. The program receives, at a network information base (NIB) data structure that stores data for managing the several switching elements, a request to modify data stored in at least one particular switching element. The program modifies at least a first set of data tuples stored in the NIB for managing the particular switching element. The program sends a request to the particular switching element to modify at least a second set of data tuples for managing the particular switching element's operation.

主权项

1. For a distributed network control system comprising a plurality of controller instances for collectively managing a plurality of switching elements, a non-transitory machine readable medium storing a program for a first controller instance, wherein the program when executed by a set of processing units manages a set of switching elements of the plurality of switching elements, the program comprising sets of instructions for:
maintaining a network information base (NIB) data structure that stores data for managing the set of switching elements; receiving, from a second controller instance that does not manage the set of switching elements, a first request to modify data stored in at least one particular switching element in the set of switching elements; modifying at least a first data tuple stored in the NIB data structure for managing the particular switching element; and sending a second request to the particular switching element to store a second data tuple within the particular switching element in order to manage the particular switching element's operation.