SYSTEMS AND METHODS FOR LOAD BALANCING IN A DISTRIBUTED SOFTWARE DEFINED NETWORK PACKET CORE SYSTEM

摘要

Systems and methods for balancing load in a distributed software defined network (SDN) packet core system include a stateless load balancer within a local SDN infrastructure instance of the distributed SDN packet core system receiving a data packet for processing by at least one of a plurality of SDN network function modules of local SDN infrastructure instance. The stateless load balancer can direct the data packet to a stateful load balancer residing on a first computing device, among the plurality of computing devices in the local SDN infrastructure instance. The stateful load balancer can determine a stateful data packet processing task to be applied to the data packet and determine a second computing device in the local SDN infrastructure instance for applying the determined stateful data packet processing task to the data packet. The stateful load balancer can then forward the data packet to the second computing device.

主权项

1. A distributed software defined network (SDN) packet core system comprising:
a plurality of interconnected local SDN infrastructure instances, each local SDN infrastructure instance including a cluster of computing devices arranged geographically in proximity, and communicatively coupled, to a respective plurality of radio access points, each local SDN infrastructure instance including:
a plurality of SDN network function modules representing instances of network functions executable by one or more of the computer devices;a stateless load balancer configured to receive data packets for processing by at least one of the network functions and direct the data packets to one of the computing devices in the local SDN infrastructure instance;a plurality of stateful load balancing modules, each stateful load balancing module residing in a respective computing device and configured to:
determine a stateful data packet processing task to be applied to a data packet received at the respective computing device;determine a computing device in the local SDN infrastructure instance for applying the determined stateful data packet processing task to the data packet; andforward the data packet to the determined computing device; anda load manager configured to manage information indicative of load and operational states of the computing devices and the plurality of SDN network function modules in the local SDN infrastructure instance.