Infinera Corporation

University of Massachusetts

Deutschetelekom Ag

Srini Seetharaman

Balaji Balasubramanian

Sri Mohana Satya Srinivas Singamsetty

Sriram Natarajan

Tilman Wolf

Abhishek Dwaraki

A versioning system for network state of a network includes: a server, configured to execute a versioning controller, the versioning controller being configured to communicate with a plurality of data plane devices of the network and store a plurality of network states in a local non-transitory memory corresponding to the server, wherein the plurality of network states stored in the local non-transitory memory include a current authoritative network state and a plurality of previous network states each corresponding to a modification of a flow within the network; and the plurality of data plane devices, configured to notify the server of flow modifications made by respective data plane devices and to receive the current authoritative network state from the server.

Versioning system for network states in a software-defined network

An exemplary network controller may be configured to perform ARP mediation through passively learning MAC addresses on client sides and keeping track of IP/MAC/Attachment point associations, hijacking ARP requests received by the core nodes through a packet_in operation or a redirection to other agents, injecting proxy ARP replies that provide target MAC information without the actual target being involved, and possibly programming the network nodes with the static ARP responding rule for a specified duration.

Systems, methods, and apparatus for ARP mediation

Growing community of inventors

Sunnyvale, CA, United States of America

Srini Seetharaman