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JigglyWiggly

join:2009-07-12
Pleasanton, CA
reply to EG

Re: [Speed] Is this config BLAST! ?

I thought performance had the silver config



EG
The wings of love
Premium
join:2006-11-18
Union, NJ
kudos:9

1 recommendation

It depends. I've seen differing naming conventions in different market areas for the same service. It's part of CC's history of being convoluted in many aspects..


MisterP

join:2012-10-11
US

1 edit

EG,

That's why I IMed you after I posted in the other top of extreme 50 config file but I guess you didn't get it. I'm in Middle TN.

Shaper Detection Module.
 
Connected to server 38.102.0.111.
 
Estimating capacity:
Upstream: 1123 Kbps.
Downstream: 36339 Kbps.
 
The measurement will take upto 3.0 minutes. Please wait.
 
Checking for traffic shapers:
 
Upstream: No shaper detected.
Median received rate: 1087 Kbps.
 
Downstream: Burst size: 19497-19982 KB;
Shaping rate: 26618 Kbps.
 
For more information, visit: http://www.cc.gatech.edu/~partha/diffprobe
 

But what I don't get is this: »stage.results.speedtest.comcast.···6072.png

All the speed tests say I'm around 4-6Mbps upload but Shaper says I'm at only 1000KB. Very confusing. And I've been running shaperprobes daily for over a week so this isn't an edge case; they are all around 1000KB; VERY rarely will it display around 4-5Mbps as should be the Blast upload speed.

MisterP

join:2012-10-11
US

Just called Comcast and they said anything with 'speedtier' in the name is Blast unless it has an 'extreme' modifier in it, then that would be extreme 50 or whatever the speed.



EG
The wings of love
Premium
join:2006-11-18
Union, NJ
kudos:9

I have Blast which has now been upgraded from 25/4 to 50/10 and I've had it (Blast) since it was 16/2 and the config file name has always been "speedtierextreme2". Forget about the config file names, they don't prove anything as the naming conventions for Comcast configs has always been convoluted !! There is no credibility in the names used. The can mean different things in different areas. I even have had Comcast insider employees admit to me to lazy engineering...

Comcast needs to get it's act together as far as standardizing many things system wide !!


MisterP

join:2012-10-11
US

soooooo.... ok, ignoring the confile file now.

So what about ShaperProbe giving me wonky upload results? Does anyone else have an issue with ShaperProbe not giving them accurate results? (Over several tests; I know it can give one off weird results)



Johkal
Cool Cat
Premium,MVM
join:2002-11-13
Happy Valley
kudos:9

Before I respond, let me say that ShaperProbe is the standard that most use to confirm what your provisioning is & I fully endorse it. That being sad, I have issues with it working for "me" which I have yet to find the solution to fix the issue.



sanjose

@comcastbusiness.net
reply to MisterP

Are you testing via WiFi? I noticed the same strange results on all my laptops using Intel WiFi radios. Plug in via ethernet and the issue goes away. Note that this started to occur after reinstalling Windows on several laptops. Testing with laptops not using the Intel WiFi radio does not show these strange results



owlyn
Premium,MVM
join:2004-06-05
Newtown, PA
Reviews:
·Comcast

WiFi results are not reliable indicators of your actual speed. There are troo many variables. I recently had to change my WiFi channel due to interference. A neighbor apparently got a new router and was using the same channel as I was. After changing the channel, speed and reliability went back to normal.



sanjose

@comcastbusiness.net

said by owlyn:

WiFi results are not reliable indicators of your actual speed. There are troo many variables. I recently had to change my WiFi channel due to interference. A neighbor apparently got a new router and was using the same channel as I was. After changing the channel, speed and reliability went back to normal.

Testing here in a clean RF environment within a faraday cage lab environment using 2:2:2 configuration with various enterprise Cisco APs. Associated rate is 300Mbps with RSSI of -29dB and lower. The WiFi connection is as ideal as you can get for 5Ghz and is more than capable of testing against a 50/10 cable Internet connection. The downstream comes out at 50mbps+/- and 2Mbps+/- upstream when running ShaperProbe on Windows host machines configured with an Intel WiFi chipset radio. Mind you it does not do this to internal or external iperf servers.

In addition using any number of Macs connected via WiFi with ShaperProbe results in ideal 50/10 results, nor does the referred slow upload results occur when using other WiFi chipset radios such as those from Atheros, Broadcom or RALink.

There is definitely something happening with the use of ShaperProbe in combination with Intel WiFi chipset radios on Windows boxes. The end result is poor estimated capacity and shaping rate for the upload.