Title:
COMMUNICATION QUALITY PREDICTION METHOD, DEVICE, PROGRAM, AND RECORDING MEDIUM
Document Type and Number:
Japanese Patent JP3947142
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide communication quality prediction technology for predicting to what extent a degree of deterioration of communication quality at a TCP level becomes when link operating rate becomes large in a link only from values such as the number of simultaneous connection of flows and an operating rate, which are simply measured without providing assumption to traffic conditions.
SOLUTION: The number of simultaneous connection of flows which pass the link and the operating rate of the link at a predetermined time interval t0 are measured for n times and TCP quality deterioration frequency when the link operating rate becomes ρ is presumed by using combination of these measured values (link operating rate, the number of flows). Thus, to what extent the deterioration frequency of the communication quality at the TCP level becomes when the link operating rate becomes large in the link is presumed only from the values such as the number of simultaneously connection flows and the operating rate, which are simply measured.
Inventors:
Ryoichi Kawahara
Keisuke Ishibashi
Keisuke Ishibashi
Application Number:
JP2003309887A
Publication Date:
July 18, 2007
Filing Date:
September 02, 2003
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04L12/70; (IPC1-7): H04L12/56
Domestic Patent References:
| JP2003218930A | ||||
| JP2005064899A | ||||
| JP2003008623A | ||||
| JP2001044998A |
Other References:
川原亮一他,“TCPフロー統計情報を用いたIPトラヒック管理手法”,信学技報NS2002-170,2002年11月14日
Attorney, Agent or Firm:
Akita Haruki
Keiichi Chino
Keiichi Chino