Control device discovery in networks having separate control and forwarding devices

WT Sella, JM Sella - US Patent 8,989,199, 2015 - Google Patents
Abstract A Software Defined Network (SDN) includes a plurality of forwarding devices and a
routing control device located separate from the forwarding devices. The routing control …

Automatic discovery of multiple controllers in Software Defined Networks (SDNs)

B Gorkemli, M Parlakisik, N Guney, S Civanlar… - US Patent …, 2015 - Google Patents
(57) ABSTRACT Controllers in a Software Defined Network (SDN) automati cally discover
and authenticate each other as part of the con trol plane operations, without any need for …

System and methods for managing network hardware address requests with a controller

RE Adams, DE Talayco, MS Dhami, S Zhou… - US Patent …, 2018 - Google Patents
A controller may fulfill hardware address requests that are sent by source end hosts in a
network to discover hardware addresses of destination end hosts. The controller may use …

System and methods for managing network protocol address assignment with a controller

K Jiang, S Zhou, RE Adams, MS Dhami… - US Patent …, 2014 - Google Patents
(57) ABSTRACT A controller may help reduce network traffic that is associated with
broadcasting of Dynamic Host Configuration Protocol (DHCP) packets by converting …

SDN based interdomain and intradomain traffic engineering

Y Zhang, M Moradi - US Patent 9,699,116, 2017 - Google Patents
A method is implemented by a centralized control plane device for a software defined
networking (SDN) network. The method performs joint inter-domain and intra-domain traffic …

Traffic behavior driven dynamic zoning for distributed traffic engineering in SDN

X Li, P Djukic, H Zhang - US Patent 9,432,257, 2016 - Google Patents
BACKGROUND Software defined networking (SDN) decouples traffic management (ie, the
control plane) from traffic forwarding (ie, the data plane). In the control plane, SDN manages …

System and method for managing unknown flows in a flow-based switching device

R Narayanan, S Kotha, RL Winter - US Patent 9,559,948, 2017 - Google Patents
(57) ABSTRACT A network switching device includes a macroflow sub-plane that performs
packet-based routing in the network Switching device and a microflow routing module that …

System and method for zoning in software defined networks

X Li, P Djukic, H Zhang - US Patent 9,397,917, 2016 - Google Patents
(51) Int. Cl.(57) ABSTRACT GOIR 3L/08(2006.01) H04L 2/26(2006.01) An embodiment
method of network Zoning for a software H04L 2/24(2006.01) defined network (SDN) …

Communication system, control apparatus, communication method and program

Y Tanabe - US Patent App. 14/398,950, 2015 - Google Patents
(57) ABSTRACT A communication system includes: a control apparatus that sets broadcast
domains or multicast domains respectively for virtual networks configured in a physical …

System and methods for managing network packet broadcasting

RW Sherwood, RE Adams, DE Talayco… - US Patent …, 2015 - Google Patents
USPC......... 370/229, 230, 235, 254, 256,351,357, The controller may configure Switches of
a given forwarding 370/384, 386, 389, 392, 422: 709/223, 226 tree that are coupled to end …