9 to be used as a web client a computer needs to be

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: riority traffic. By assigning higher priority to the packets belonging to real-time applications, the necessity of time sensitiveness is restored. Packets that are time insensitive are assigned low priority and serviced by the best effort approach. Senders can also request special handling of packets by the routers by assigning flow labels to them, such as a nondefault quality of service or real-time service. With this feature, video and audio data may be treated as flows whereas traditional data, such as file transfer and email, may not be treated as flows. 3. IPV6 with its ancillary security protocol provides a better communication tool for secure business transaction over the Internet. With a longer address field, IPV6 permits extensions that would natively support authentication, data integrity, and data confidentiality, which would address a variety of critical security concerns. 4. The enhanced routing capability of IPV6 includes support for mobile hosts. This feature allows a node to move from one link to another without changing the address. Movement can even be heterogeneous, that is, a node can move from an Ethernet link to a cellular packet network. 5. Besides unicast and multicast, IPV6 has the provision of anycast addressing. Anycast addressing allows a packet addressed to an anycast address to be delivered to any one of a group of hosts. 6. IPV6 also permits auto-configuration. IP-enabled devices can thus gain full access to the Internet without requiring time-consuming manual configuration. 7. IPV6 uses improved packet header format by dropping the least used options from IPV4 packet header format. IT also has improved support for extensions that brings greater flexibility in operations. All these features permit more efficient packet handling. Points to Remember 1. The Internet is a huge network of computers that links many different types of computers all over the world. It is a network of networks that share a common mechanism for addressing (identifying) computers and a common set of comm...
View Full Document

This document was uploaded on 04/07/2014.

Ask a homework question - tutors are online