"pl send detail of layer3 swicth and router working process"
Well that's a rather broad request. For the router do you mean how routing actually functions ?. If so there are many books dedicated to that single topic. Perhaps if you were more specific ? At what level do you need to go to ?
For the L3 switch, again depends on the level. At a very high level it's fundamentally the same process as a router but where the process takes place, how it is done in terms of hardware, resources etc is very different. Again what exactly are you looking for ?
"can you tell me 4/5 different between l3 and router"
Hmmm, why 4/5, why not 2/3 or 5/6 ie. it's a fairly meaningless question without some more explanation as to what it is you are looking for.
Jon
