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inMaryland

@army.mil
reply to Extide

Re: Is this throttling? - I believe so

I have been using easynews for years - they can easily fill the 105 mbps bandwidth - they have a very active support forum and there has been no complaint about throughput - I use 30 threads to download. In addition, as another test, I subscribed to a 14 day trial on giganews, using 30 threads from giganews results in the same sawtooth pattern. I am quite sure this is NOT an issue caused by the NNTP (usenet) source. To review, based on my testing during the past week, the slow download issue:

. is NOT caused by the NNTP source
. happens only with NNTP downloads (I don't use p2p ie. torrents)
. is NOT caused by my modem
. is NOT caused by my router
. is NOT related to node saturation
. is NOTcaused by my individual over use of the bandwidth
. I can recreate the results every time.. (slow (sawtooth) NNTP downloads, full throughput speed for http large file downloads)



inMaryland

@army.mil

easynews offers https ssl (port 81) downloads.. it is not optimal for my setup (can't use newsbin this way) but I will try this download method and report back... should be an interesting test.



inMaryland

@comcast.net

I tested a usenet download from easynews using their https ssl port 81 method.. it works great.. maxed out my 105mbps bandwidth for the entire 1.4G download.. it is clear to me that Comcast is now traffic shaping... probably looking at packets for NNTP and maybe other types of traffic.



JohnInSJ
Premium
join:2003-09-22
San Jose, CA

said by inMaryland :

I tested a usenet download from easynews using their https ssl port 81 method.. it works great.. maxed out my 105mbps bandwidth for the entire 1.4G download.. it is clear to me that Comcast is now traffic shaping... probably looking at packets for NNTP and maybe other types of traffic.

Well, that's hardly an exhaustive test...
--
My place : »www.schettino.us


inMaryland

@comcast.net

did not say it was an exhaustive test.. I will keep trying both methods of downloading from easynews (NNTP vs. https) for awhile (days, weeks) and report back..



jlivingood
Premium,VIP
join:2007-10-28
Philadelphia, PA
kudos:2

said by inMaryland :

did not say it was an exhaustive test.. I will keep trying both methods of downloading from easynews (NNTP vs. https) for awhile (days, weeks) and report back..

Fun experiment... What cable modem make/model and home gateway do you have? In your home gateway, any QoS settings for the upstream? If so, can you try limiting upstream bandwidth to 70% of your provisioned rate? (see »vonage.nmhoy.net/wrt54glqos.html but just try upstream limiting first before prioritizing FTP)

Jason
--
JL
Comcast


inMaryland

@army.mil

My modem is a Motorola SB6120. my router is not the issue - I get the same results by connecting the modem directly to my pc and bypassing the router. Also, I seriously doubt that my uplink channel is any where near saturated... I have an upload bandwidth of 20mbps (tested) and when I do an NNTP download my upload pipe never uses even 1mbps.. I don't use bit torrent or other p2p protocols which could saturate the upload pipe. I have not tested ftp - that would be an interesting test. And btw, my router is NOT using any QOS



JohnInSJ
Premium
join:2003-09-22
San Jose, CA

if you are 105/20 and you are maxing out your downlink for extended periods, I would not be shocked to find you are falling into the congestion management system, but there is no way to be sure of that from your end.

Have you tried several different concurrent download sources? As many as needed to fill the pipe?
--
My place : »www.schettino.us


rody_44
Premium
join:2004-02-20
Quakertown, PA
reply to inMaryland

He didnt ask if you were using QOS. He was asking you if you would mind trying it.