MyWireless is asymmetrical?

H

Headend

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Got told by a helpdesk guy yesterday that the service is asymmetrical - upload speed is half the download speed. Can anyone confirm this? It would explain why I have been battling to get decent upload speeds.

Headend
<font size="1"><b>Tower:</b> Mintek (82) - <b>Signal:</b> 25% (Poynting Grid Antenna) - <b>Firmware:</b> 5.0.1.62/A2 - <b>256k</b> package
<b>SNL:</b> 9dBm <b>BER:</b> 71% <b>RSCP:</b> -77dBm <b>ISCP:</b> -88dBm - Smoothwall and PPPoE</font id="size1">
 
that is BS according to the information i have found on UMTS-TDD the service is full duplex so theoreticaly you could up and download at 3Mb/s a total of 6 ...

my experiance with sentech however leads me to belive the service is half duplex as the minute i start a upload my downloads go for a a ball of **** the reason for this must be there fancy BW management scheme and lack of quality bandwidth ...

they are a joke and as soon as you can dump them do i cant wait to cancel
 
The same guy that stated that the service was asymmetric, also said that they have recently changed the service to full duplex. Apparently this happened in the last couple of days. From what he was saying, you need the latest firmware tho.

He said the asymmetricallity was like ADSL where upstream speed is half downstream. It sounded like this is how they have configured the service, not a result of the core technology.
 
what sentech actualy does is a mystery to anyone at the moment and it is frustrating that they dont implement it ptroperly [they obviously dont know what they are doing] ...

i had this semetric/duplex fight with them a while back where they were telling me it was symetric and full duplex and i was argueing my experiance showed otherwise ... ive put the new firmware on lets see if it makes a difference my line is currently running close to 8k so im going to load a 15Mb file onto a customers box he is on a datapro 64kbs line ... report back in a few days when it is complete :)
 
ok it does seem a lot better in that the traffic after 10 minutes shows no sharp drop off in downloads with the sharp increase in upload ...

still only uploading at 4K on a 128k package to a clear 64kbs local link is pathetic
 
Just an idea!!!! it seems to work for me!!

After rebooting the modem 3 times without connecting, and then connecting, i get full duplex (15K up and down) for about 2 days. It then dies to about 2K either way. When i dies , and i then limit my upstream to 1 K , the down stream stabilizes at about 12K....

Just an idea to try, i think the modems are the problem if not rebooted (memory or something build up in them)

Hope that helps some of you
 
ah, but from the start helldesk has been saying to reboot your modem with a paperclip, they were right! [:p]


_________________________________________________________________________
custenna, variable 8 - 13 signal, ber 28% - 42%.<i> "I am the only one with this problem." </i>
 
You shouldn't have to reboot your modem. The average user should not be subjected to the kind of hoops Sentech makes you jump through just to get a decent service. If there is a problem with the hardware then Sentech should replace it (like that will ever happen). I think after all this time it should be quite evident that Sentech don't know what the hell they're doing and it's unlikely to improve much in the near future. I feel sorry for you guys that got suckered into using it and thank &lt;insert deity here&gt; every day that I waited to see what the service would be like before trying it.
 
that helpdesk guy is quite uninformed.. sad. I dont know if he even knows what full duplex or assymetrical is. more "shut up" tactics.

I dunno but I have personally seen (on my connection) simultaneous download/upload of 15KBps/24KBps more than a few times (one even 12KBps/50KBps) but on average they are independent of each other (at least for my account and device slash instrument slash modem).

asymmetrical means the upload download numbers are different. doesnt really mean they are related. duplex is closer but if it was half duplex.. this would not work - you could ONLY download or upload. most definitely not the case
 
not quite true. eg. 802.11b is halfduplex, you still can upload and download at highspeeds, but when you reach the line speed, you'll start seeing slowdowns on either upload or download. our 3Mbps modems are limited to 128/256/512K by software on the tower, so we never even come close to the theoretical 3Mbps limit, so even if it was halfduplex, we wouldn't notice it.

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256k ... BAH..more like 25.6k
FSCK YOU Sentech!! [:(!]
 
thing is, your speed will go down. its a version of time sharing. one end sends a burst then waits while the other sends etc. so u interpret both sides as working fine albeit at a slower speed. perhaps there is some extra intelligence to jack up the speed but none im aware of

on my WLAN I notice if I try copy in both directions things get horribly slow. thats the sucky bit about 802.11 and it also applies this TDD method to the case when multiple users are on the same channel/frequency
 
I'd love to see these things perform in a testlab. Wonder if sucktech ever did that? Or if they just bought the kit because of what the IPWireless marketing guys said.....

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256k ... BAH..more like 25.6k
FSCK YOU Sentech!! [:(!]
 
I bet you the technology was chosen after a junket by the marketing and executive types to the States, with a single technical yes-man accompanying them. All of this under the pretext that thorough evaluation and site visits were necessary, of course. This is how it's usually done...
 
Headend, that wasn't Charl was it? I got a call yesterday from them too to say that they see I have an outstanding speed ticket (only about five months old!) and got given the same story about how they fixed the issues last week Thursday. Told him last week Thursday things really went to pot on my connection :D

Cheerio

Menlo Park Tower / 128k / NoWire.co.za
 
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