Process Switching

It applies the brute force method to switch packets wih consumption of large amount of CPU time

List of items are needed when switching packets

Routing tables-    DRAM

Routing algorithm -  Flash memory

Packets-  SDRAM

 I/O memory    - Memory pools - DRAM, Kernal participation

Fast Switching

Same components which are needed for process switching.

Here Cache concept has involved for storing packets header in hash table structure. It increases the performance of switching fastly. Main purpose SDRAM is performs the switching packets quickly with efficiently.

In Cisco IOS Release 10.2, overcome the hash table structure by implement the was another data structure called a 2-way radix tree (a form of a binary tree).