Cisco Technology, Inc.

David Alan Johnson

Ian McDowell Campbell

Ajeet Pal Singh Gill

Patrick Sewall

Gary Kenneth Boon

Prasannakumar Murugesan

King Tung Ma

Vijayabhaskar Katamreddy

David John Poirier

Aeneas Sean Dodd-Noble

Phillip T Magnuson

Steven Wood

Akshya Kumar Singh

Ravinandan Arakali

Jeff Buttars

Gordon Mcnutt

Systems, methods, and computer-readable media for offloading session management processing into a forwarding plane. In some examples, a subscriber is coupled to a network endpoint through a session manager during a network session of the subscriber in a network environment. A session manager offloading system of the session manager can be maintained in a vector packet processing system in a forwarding plane of the network environment. The session manager offloading system can be configured to offload processing from the session manager into the forwarding plane. Further, at least a portion of subscriber traffic in a stream between the subscriber and the network endpoint through the session manager can be intercepted. Subsequently, the at least the portion of the subscribed traffic that is intercepted can be processed at the session manager offloading system as part of offloading the processing from the session manager into the forwarding plane.

Session management in a forwarding plane

In accordance with various implementations, a method is performed at a data plane node with one or more processors, non-transitory memory, and a control interface between a network function module associated with the data plane node and a switch associated with the data plane node. The method includes determining whether an offload capability is available for a data flow received at an ingress network interface of the data plane node. The method also includes determining whether the data flow satisfies offload criteria in response to determining that the offload capability is available. The method includes bypassing the network function module associated with the data plane node and providing the data flow to at least one of the switch associated with the data plane node or an egress network interface associated with the data plane node in response to determining the offload capability is available and the offload criteria is satisfied.

Method and device for offloading processing of data flows

In one embodiment, a method includes assigning a number of threads for user plane functions to a corresponding number of transmit queues for transmission of packets on a network interface, assigning additional threads exceeding the number of transmit queues to software transmission queues associated with the threads assigned to the transmit queues, identifying a load at each of the threads, dynamically updating assignment of the additional threads to the software transmission queues based on the load at the threads, and transmitting packets from the transmit queues for transmission on a network from a physical interface at a network device. An apparatus and logic are also disclosed herein.

Dynamic transmission side scaling

An example method for load-balanced IP pool distribution among a plurality of forwarding elements is provided. The method may include assigning a plurality of IP pool chunks to the plurality of forwarding elements, each IP pool chunk comprising a plurality of IP addresses, and receiving, from each of the forwarding elements, information indicative of a load on each forwarding element. The method may further include performing load balancing using the information indicative of the load on each forwarding element to determine whether re-assignment of the plurality of IP pool chunks is needed, and re-assigning at least one IP pool chunk of the plurality of IP pool chunks from a first forwarding element to a second forwarding element based on the load balancing.

IP routing pool distribution among forwarding elements in SDN service core deployment

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Nashua, NH, United States of America

David Alan Johnson