ndt-users list created

[Phil Reese <>]

I'm starting to think I'm calling WOLF, but here are more data points.

Last night I ran the NDT test and got the following info:
running 10s outbound test (client to server) . . . . . 667.46Kb/s
running 10s inbound test (server to client) . . . . . . 2.20Mb/s

CurCwnd: 102200
CurRwinRcvd: 65535
Duration: 10088170
Sndbuf: 223232

estimate = 52.78 based on packet size = 11Kbits, RTT = 211.03msec, and 
loss = 1.0E-6
The theoretical network limit is 52.78 Mbps
The NDT server has a 218.0 KByte buffer which limits the throughput to 
8.07 Mbps
Your PC/Workstation has a 63.0 KByte buffer which limits the throughput 
to 2.36 Mbps
The network based flow control limits the throughput to 3.69 Mbps

Client Data reports link is 'T1', Client Acks report link is 'T1'
Server Data reports link is 'OC-48', Server Acks report link is 'Ethernet'

DSLReports at the same time:
Your download speed : 8652754 bps, or 8449 kbps.
A 1056.2 KB/sec transfer rate.
Your upload speed : 708497 bps, or 691 kbps.


Then this morning, early, running in the same browser window from the 
test of last night (first time this has given the expected results in 
several weeks):
running 10s outbound test (client to server) . . . . . 733.66Kb/s
running 10s inbound test (server to client) . . . . . . 7.33Mb/s

CurCwnd: 48180
CurRwinRcvd: 65535
Duration: 10065985
Sndbuf: 223232

estimate = 7.02 based on packet size = 11Kbits, RTT = 63.99msec, and 
loss = 6.1529E-4
The theoretical network limit is 7.02 Mbps
The NDT server has a 218.0 KByte buffer which limits the throughput to 
26.61 Mbps
Your PC/Workstation has a 63.0 KByte buffer which limits the throughput 
to 7.81 Mbps
The network based flow control limits the throughput to 12.18 Mbps

Client Data reports link is 'Ethernet', Client Acks report link is 'T1'
Server Data reports link is 'OC-48', Server Acks report link is '10 Gig'

DSLReports at the same time:
Your download speed : 8348353 bps, or 8152 kbps.
A 1019 KB/sec transfer rate.
Your upload speed : 712115 bps, or 695 kbps.


I'm back to thinking that something odd is happening within Comcast's -- 
Stanford's network over time.  Other thoughts?

Is there other info I might provide?

Phil