Archive for the ‘Broadband in General’ Category

Why internet speed is so slow?

Tuesday, April 14th, 2009

Simple Internet Access Diagram
Simple Internet Access Diagram

Reasons Internet speed is slow
A(Your PC) - Too many applications in your PC use Internet and/or at least one application is malicious, e.g. virus, worm, etc.
B(Your ISP equipments) - Network congestion and/or over-utilization in your ISP
C(Your ISP international gateway) - Network congestion and/or over-utilization in your ISP international gateway
D(Internet) - Network congestion and/or over-utilization
E(Website host international gateway) - Network congestion and/or over-utilization in website host international gateway
F(Website host/server) - host is overloaded

1 - Network congestion and/or over-utilization between your PC and your ISP
2 - Network congestion and/or overiutilization between your ISP and your ISP international gateway
3 - Network congestion and/or over-utilization between your ISP international gateway and a cable operator
4 - Network congestion and/or over-utilization between website host international gateway and a cable operator
5 - Network congestion and/or over-utilization between website host and website host international gateway

For broadband users in developing countries, besides Internet over-utilization at user PCs(comparing to subscribed rate and/or real capacity of ISPs) and overloading at website hosts, usual issue is network over-utilization and/or under capacity at (2) and (3).