Basic HTML version of Foils prepared Dec. 6 98

Foil 21 Tag switching (3)

From Introduction to Network Security Lectures at Xi'an Jaotong University -- Sept 1998. by Roman Markowski
Control component
  • based on the notion of binding between tag and network-layer routing
  • control component is responsible for creating tag bindings and then distributing the tag-binding information among tag switches
  • collection of modules; each designed to support a particular routing function
Modules to support routing functions
  • in destination based routing, a router makes a forwarding decisions based on the destination address carried in a packed and stored in the Forwarding Infrastructure Base (FIB) maintained by a router. There are 3 methods: downstream allocation, upstream allocation, downstream tag allocation on demand

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