Effects of Network Dynamics on Routing Efficiency in P2P Networks
P2P Networks are highly dynamic structures since
their nodes – peer users keep joining and leaving continuously. In the
paper, we study the effects of network change rates on query routing
efficiency. First we describe some background and an abstract system
model. The chosen routing technique makes use of cached metadata
from previous answer messages and also employs a mechanism for
broken path detection and metadata maintenance. Several metrics are
used to show that the protocol behaves quite well even with high rate
of node departures, but above a certain threshold it literally breaks
down and exhibits considerable efficiency degradation.
[1] M. Ripeanu, I. Foster, A. Iamnitchi, "Mapping the Gnutella Network:
Properties of Large-Scale Peer-to-Peer Systems and Implications for
System Design". IEEE Internet Computing, vol. 6(1), 2002.
[2] M.Ciglaric, "Content networks : distributed routing decisions in
presence of repeated queries". Int. j. found. comput. sci., 2004, vol. 15,
no. 3, pp. 555-566.
[3] M.Ciglaric, Towards More Effective Message Routing in Unstructured
Peer-to-Peer Overlays, to be published in IEE Proc. Communications,
2005.
[4] M. A. Jovanovic, F. S. Anexstein, K. A. Berman, Modeling Peer-to-Peer
Network Topologies through "Small-World" Models and Power Laws,
Proc. IX. Telecommunications Forum TELFOR, 2001.
[5] T. Bu, D. Towsley, On Distinguishing between Internet Power Law
Topology Generators, Proc. INFOCOM 2002.
[6] Q. Lv et al.: Search and Replication in Unstructured Peer-to-peer
Networks, Proc. 16th ACM Intl. Conf. Supercomputing ICS'02.
[7] B. Yang, H. Garcia-Molina, Comparing Hybrid Peer-to-Peer Systems,
Proc. Very Large Databases VLDB, 2001.
[8] B. Yang and H. Garcia-Molina, Efficient Search in Peer-to-Peer
Networks, ICDCS 2002. http://dbpubs.stanford.edu/ pub/2001-47.
[9] M. Ciglaric, Problems in Unstructured P2P Systems, to be published in
Electrotechnical Review, 2005.
[1] M. Ripeanu, I. Foster, A. Iamnitchi, "Mapping the Gnutella Network:
Properties of Large-Scale Peer-to-Peer Systems and Implications for
System Design". IEEE Internet Computing, vol. 6(1), 2002.
[2] M.Ciglaric, "Content networks : distributed routing decisions in
presence of repeated queries". Int. j. found. comput. sci., 2004, vol. 15,
no. 3, pp. 555-566.
[3] M.Ciglaric, Towards More Effective Message Routing in Unstructured
Peer-to-Peer Overlays, to be published in IEE Proc. Communications,
2005.
[4] M. A. Jovanovic, F. S. Anexstein, K. A. Berman, Modeling Peer-to-Peer
Network Topologies through "Small-World" Models and Power Laws,
Proc. IX. Telecommunications Forum TELFOR, 2001.
[5] T. Bu, D. Towsley, On Distinguishing between Internet Power Law
Topology Generators, Proc. INFOCOM 2002.
[6] Q. Lv et al.: Search and Replication in Unstructured Peer-to-peer
Networks, Proc. 16th ACM Intl. Conf. Supercomputing ICS'02.
[7] B. Yang, H. Garcia-Molina, Comparing Hybrid Peer-to-Peer Systems,
Proc. Very Large Databases VLDB, 2001.
[8] B. Yang and H. Garcia-Molina, Efficient Search in Peer-to-Peer
Networks, ICDCS 2002. http://dbpubs.stanford.edu/ pub/2001-47.
[9] M. Ciglaric, Problems in Unstructured P2P Systems, to be published in
Electrotechnical Review, 2005.
@article{"International Journal of Information, Control and Computer Sciences:63580", author = "Mojca Ciglaric and Andrej Krevl and Matjaž Pancur and Tone Vidmar", title = "Effects of Network Dynamics on Routing Efficiency in P2P Networks", abstract = "P2P Networks are highly dynamic structures since
their nodes – peer users keep joining and leaving continuously. In the
paper, we study the effects of network change rates on query routing
efficiency. First we describe some background and an abstract system
model. The chosen routing technique makes use of cached metadata
from previous answer messages and also employs a mechanism for
broken path detection and metadata maintenance. Several metrics are
used to show that the protocol behaves quite well even with high rate
of node departures, but above a certain threshold it literally breaks
down and exhibits considerable efficiency degradation.", keywords = "Network dynamics, overlay network, P2P system,routing efficiency.", volume = "1", number = "8", pages = "2616-4", }