US 10,764,111 B2 · Preventing concurrent distribution of network data to a hardware switch by multiple controllers

Abstract

Some embodiments provide, for a first controller application, a method for configuring a managed hardware forwarding element (MHFE) to implement one or more logical networks. The method of some embodiments receives logical network data that defines at least one logical forwarding element of a logical network to be implemented by the MHFE. The method then identifies a set of tables of a database instance that is instantiated on the MHFE in order to distribute the logical network data to the MHFE. In some embodiments, the method monitors the identified set of tables in order to determine whether a second controller application updates any one of the set of tables. The method distributes the logical network data to the MHFE so long as none of the tables in the set of tables is updated by the second controller application.

Claims20

Dependent claims

A method for managing a managed hardware forwarding element (MHFE) to implement one or more logical networks, the method comprising:

at a first controller application:
receiving logical network data defining at least one logical forwarding element of a logical network for implementation by the MHFE;
identifying a set of one or more database tables that is associated with the received logical network data and that belongs to a database instance that is instantiated on the MHFE;
monitoring the identified set of database tables in order to determine whether a second controller application updates any one of the set of database tables;
and
when a determination is made based on the monitoring that updates have not been received for the identified set of database tables, distributing the logical network data to the MHFE.

3 more elements

A non-transitory machine readable medium for storing a first controller program which when executed by at least one processing unit manages a managed hardware forwarding element (MHFE) to implement one or more logical networks, the first controller program comprising sets of instructions for:

receiving logical network data defining at least one logical forwarding element of a logical network for implementation by the MHFE;
identifying a set of one or more database tables that is associated with the received logical network data and that belongs to a database instance that is instantiated on the MHFE;
monitoring the identified set of database tables in order to determine whether a second controller computer updates any one of the set of database tables;
and
when a determination is made based on the monitoring that updates have not been received for the identified set of database tables, distributing the logical network data to the MHFE.

2 more elements

Dependencies are inferred from the claim text.

Preventing concurrent distribution of network data to a hardware switch by multiple controllers

Life of this patent

Preventing concurrent distribution of network data to a hardware switch by multiple controllers

Life of this patent

Abstract

Claims20