Title :
Tag switching architecture overview
Author :
Rekhter, Yakov ; Davie, Bruce ; Rosen, Eric ; Swallow, George ; Farinacci, Dino ; Katz, Dave
Author_Institution :
Cisco Systems Inc., Chelmsford, MA, USA
fDate :
12/1/1997 12:00:00 AM
Abstract :
Tag switching is a way to combine the label-swapping forwarding paradigm with network-layer routing with particular application to the Internet. This has several advantages. Tags can have a wide spectrum of forwarding granularities, so at one end of the spectrum a tag could be associated with a group of destinations, while at the other end, a tag could be associated with a single application flow. At the same time, forwarding based on tag switching, due to its simplicity, is well suited to high-performance forwarding. These factors facilitate the development of a routing system that is both functionally rich and scalable. Last, tag switching simplifies the integration of routers and asynchronous transfer mode switches by employing common addressing, routing, and management procedures
Keywords :
Internet; asynchronous transfer mode; packet switching; telecommunication network routing; Internet; asynchronous transfer mode switches; common addressing; forwarding granularities; high-performance forwarding; label-swapping forwarding paradigm; management procedures; network-layer routing; overview; routing system; single application flow; tag switching architecture; Bandwidth; Communication system traffic control; IP networks; Multicast protocols; Multiprotocol label switching; Quality of service; Routing; Switches; Technical Activities Guide -TAG; Web and internet services;
Journal_Title :
Proceedings of the IEEE
