SERVICE CHAINING IN A CLOUD ENVIRONMENT USING SOFTWARE DEFINED NETWORKING

摘要

A system and method for steering traffic through a set of services is provided. A service path or service chain is assigned to a received packet based on a classification of the packet and correlation of the packet with a traffic flow. A new service chain identifier can be created if no such correlation exists. A next service type and a particular instance of the next service type can be determined in accordance with the service chain identifier. A next destination for the traffic can be set in accordance with the instance of the next service.

主权项

1. A method for steering packet traffic comprising:
receiving a packet on an ingress port; responsive to determining there is an entry corresponding to the packet stored in a microflow table, correlating the packet with a service chain identifier; determining a next service type for the packet in accordance with the service chain identifier and the ingress port; selecting an instance of the next service in accordance with the determined next service type; and forwarding the packet to the selected instance of the next service.