Wednesday, July 29, 2009

3.1 Rational Attacks

For P2P services to be effective, participating nodes must cooperate, but in most
scenarios a node represents a self-interested party and cooperation can neither
be expected nor enforced. A reasonable assumption is that a large fraction
of P2P nodes are rational and will attempt to maximize their consumption of
system resources while minimizing the use of their own.
For example nodes might realize that by not sharing, they save precious upload
bandwidth. In the case of copyrighted material, file sharing can have worst
outcomes. As it is illegal and quite easy for authorities to find out who is sharing
specific files, it can lead to a very big fine. These are good enough reasons to
motivate nodes in becoming “self-interested”. If a large number of nodes are
self-interested and refuse to contribute, the system may destabilize. Successful
P2P systems must be designed to be robust against this class of failure.

No comments:

Post a Comment

Hi thank you for comment in Assignment Lanka " Book Mark on me' To future references.


Assignment Lanka Tag Cloud
Computer Networks The History of Local Area Networks, LAN, The Topologies of a Networks, LANs describe different types of transmission Medias, Local Area Networks Access Methods, Carrier Sense Multiple Access with Collision Detect, Development of LAN Technologies. LAN -Token Ring, LAN Ethernet Digital, LAN - Ethernet Sun microsystems, LAN - Ethernet Mixed Environment, LAN - Token Ring was introduced by IBM LAN - IBM implementation of Token Ring, Token Ring Novell, LAN Token Ring - in a mixed environment, LAN - Fiber Distributed Data Interface, LAN - ATM, LAN Components, LAN Switching Methods, Virtual Local Area Network, Port based VLAN, Mac based VLAN, Protocol based VLAN, User Base VLAN, PC networks Components, PC networks Shared resources, PC Network operating systems, PC networks Novell Netware, PC networks Windows NT, PC networks IBM LAN Server Computer Programming Languages HTML Language, The Generations of Programming Languages, Different types of High Level Languages, Different types of High Level Languages Disadvantages
Computer Networks - IBM LAN Server, Windows NT Networks, Novell Netware, Network operating systems, Networks Shared, Networks Components, User Base, Protocol based, Mac based, Port based, VLAN, LAN Switching, LAN Components, ATM, Fiber Data, Token Ring, Token Ring Novell, IBM implementation, Ethernet, Sun microsystems, Ethernet Digital, Token passing, LAN Technologies, CSMA/CD, Access Methods, Transmission, Networks, The History of Local Area Networks, LAN