EP 1311957 A2 20030521 - BANDWIDTH SAVINGS AND QoS IMPROVEMENT FOR WWW SITES BY CATCHING STATIC AND DYNAMIC CONTENT ON A DISTRIBUTED NETWORK OF CACHES
Title (en)
BANDWIDTH SAVINGS AND QoS IMPROVEMENT FOR WWW SITES BY CATCHING STATIC AND DYNAMIC CONTENT ON A DISTRIBUTED NETWORK OF CACHES
Title (de)
BANDBREITENEINSPARUNGEN UND QoS-VERBESSERUNG FÜR WWW-SITES DURCH ABFANGEN VON STATISCHEM UND DYNAMISCHEM INHALT IN EINEM VERTEILTEN NETZWERK VON CACHE-SPEICHERN
Title (fr)
ECONOMIE DE BANDE PASSANTE ET AMELIORATION DE LA QUALITE DE SERVICE POUR DES SITES WWW PAR MISE EN ANTEMEMOIRE DE CONTENU STATIQUE ET DYNAMIQUE DANS UN RESEAU REPARTI D'ANTEMEMOIRES
Publication
Application
Priority
- IL 0100651 W 20010716
- US 21855900 P 20000717
Abstract (en)
[origin: WO0207364A2] Caches are disposed in the Internet for storing and updating copies of objects having dynamic content. Update characteristics of the objects are determined, and a time to live (TTL) parameter for the objects is adjusted based upon the update characteristics. Generally, the object is updated if its TTL is less than its age. The TTL for an object may be adjusted to (i) maintain its probability of error below a predetermined error probability threshold; (ii) maintain its error rate below a predetermined error probability threshold; or (iii) maintain its delay time below a predetermined delay threshold. Preferably, the caches are dedicated machines and are placed so that Web browsing passes through the cache instead of going all the way to the original sites, in many different locations, ideally within the network of ISPs providing the Internet connectivity to the highest number of users in those locations. In this manner, the users of those ISPs and, to a lesser extend, neighboring ISPs, will enjoy a huge QoS and speed improvement, for most of the traffic will stay within or close to the ISPs' internal networks and not need to go through the highly-loaded Internet backbone; and the original web-sites will no longer need as much bandwidth, since the caches will absorb most of the load. The system can adapt, in real time, according to the number of requests to each page and the actual update frequency of the page.
[origin: WO0207364A2] Caches (108) are disposed in the Internet for storing and updating copies of objects having dynamic content. Update characteristics of the objects are determined, and a time to live (TTL) parameter for the objects is adjusted based upon the update characteristics. Generally, the object is updated if its TTL is less than its age. The TTL for an object may be adjusted to (I) maintain its probability of error below a predetermined error probability threshold; (ii) maintain its error rate below a predetermined error probability threshold; or (iii) maintain its delay time below a predetermined delay threshold. Preferably, the caches (108) are dedicated machines and are placed so that Web browsing passes through the cache instead of going all the way to the original sites (104), in many different locations, ideally within the network of ISPs (106) providing the Internet connectivity to the highest number of users (102) in those locations. In this manner, the users (104) of those ISPs (106) and, to a lesser extend, neighboring ISPs, will enjoy a huge QoS and speed improvement, for most of the traffic will stay within or close to the ISPs' (106) internal networks and not need to go through the highly-loaded Internet backbone; and the original web-sites (104) will no longer need as much bandwidth, since the caches (108) will absorb most of the load. The system can adapt, in real time, according to the number of requests to each page and the actual update frequency of the page.
IPC 1-7
IPC 8 full level
G06F 17/18 (2006.01); G06F 12/00 (2006.01); G06F 13/00 (2006.01); G06F 17/30 (2006.01)
IPC 8 main group level
H04L (2006.01)
CPC (source: EP)
G06F 16/9574 (2018.12)
Citation (search report)
See references of WO 0207364A2
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0207364 A2 20020124; WO 0207364 A3 20020502; AU 7865401 A 20020130; EP 1311957 A2 20030521; IL 153782 A0 20030731; JP 2004504681 A 20040212
DOCDB simple family (application)
IL 0100651 W 20010716; AU 7865401 A 20010716; EP 01956739 A 20010716; IL 15378201 A 20010716; JP 2002513142 A 20010716