Chapter 31 Flashcards
What is MTU
Maximum transmission unit. Every hardware technology specifies maximum frame size. That maximum frame size is known as MTU.
What is success factor of IP
- Its capability of dealing with heterogeneous network.
- Its capability of adapting changing hardware technology
Why we need new version of IP4
The complex routing and multi casting is not provision in IP4. That’s why we need new version of IP
What is IPng
Preliminary versions called IP - next generation (IPng)
What about IPv5
It is experimental
What are new features of IPv6
- Address size: IPv6 are 128 bits
- Header format: Entirely different
- Extension header: Additional information stored in optional extension header, followed by data.
- Support for audio and video
- Extensible: New features can be added more easily.
What is traffic class field in IP header
It is used to choose a route out of multiple routes
What is hop limit field in IP header
It is similar to TTL field
What is performance guarantees
The applications that need some data rate to perform are called these applications require performance guarantee.
What is next header field in IP header
Is the next field extension header or data area
What is parsing
If next header field have an extension header then IP protocol goes to next header field and find what it have. This is called parsing. If the next header field again have extension header then it will move to next datagram next header field and so on.= until it find data and then pass it on to next software module.
What is the limit of header
For the case of base header, it is fixed (40 octets long). In the case when header is not fixed, it will contain a field in it, then tells the header length of that specific header.
