Yea man I know about Open Shortest path first!
akshar said:
It used IP directly without using either TCP/IP
Nops. That will rip off the whole TCP/IP protocol suite and foundation of internet! The thing u shud understand is
1. OSPF is a routing protocol. And all routing protocols work at network layer
2. IP is an integral part of TCP/IP. If there was only IP then there wud have been no concept of file downloadings! We have to associate TCP with IP for that!
akshar said:
It is possible to bypass these layers as per my knowledge using UNIX sockets you can even talk to Data link layer directly. I.e. you will have to design your own protocols in that case
Have u heard of OSI model?? And why only 5 of its layers are used in practical TCP/IP model?? OSI is the complete thing theoretically! But practically its 2 layers aren't of much use practically. Hence we have TCP/IP suite, a practical model. So even if u develop ur own models, u may be combining the tasks of the layers. But theoretically and practically speaking, u can't bypass any of the layers.
If u wanna get a good detail of it then read TCP/IP or Telecommunication networks by Forouzan!