Re: Measurement data on transit traffic in IP routers?

2007-02-18 Thread Andrew Lee
Hi Chris Your statement makes something of a presumption as to the architecture of a network. In many networks, edge aggregation devices do not participate in backbone routing, but simply pass the traffic they are aggregating into the core. One fairly well instrumented network that does have th

Re: Acceptable DSL Speeds (ms based)

2005-05-04 Thread Andrew Lee
Traceroute is not an effective measurement of performance. Due to the way routing devices process the packets it receives, it is possible for the latency that appears in a traceroute is far higher than the latency of traffic traversing that device. Luke Parrish wrote: My email was confusing s

Re: Acceptable DSL Speeds (ms based)

2005-05-04 Thread Andrew Lee
I have found that "acceptable speeds" for residential users will vary widely from one area of the country to another. To a large degree it is a perception issue rather than an empirical one (ie www.cnn.com loads "too slowly"). The best metric for the happiness of a DSL customer base seems to