Cisco Technology, Inc.

Dave Barach

David Delano Ward

James Neil Guichard

Hendrikus G P Bosch

Paul M Quinn

Alessandro Duminuco

Rex Emmanuel Fernando

Luyuan Fang

Presented herein are techniques for use in a network environment that includes one or more service zones, each service zone including at least one instance of an in-line application service to be applied to network traffic and one or more routers to direct network traffic to the at least one service, and a route target being assigned to a unique service zone to serve as a community value for route import and export between routers of other service zones, destination networks or source networks via a control protocol. An edge router in each service zone or destination network advertises routes by its destination network prefix tagged with its route target. A service chain is created by importing and exporting of destination network prefixes by way of route targets at edge routers of the service zones or source networks.

Chaining service zones by way of route re-origination

Growing community of inventors

Boxborough, MA, United States of America

Dave Barach