http://www.cisco.com/en/US/products/hw/switches/ps718/products_implementation_design_guide_chapter09186a00800f0a41.html
check it out
regards: rohit
http://vermazz.blogspot.com/
It is a type of diagram which depict software and hardware.It is a diagram which shows the major stages in a process, without describing the inner workings. It gives a rough idea of the process...