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Re: [Karlnet] Transfer Rates

To: Karlnet Mailing List <karlnet@WISPNotes.com>
Subject: Re: [Karlnet] Transfer Rates
From: Bryan <blsutton@airnetwifi.net>
Reply-to: Karlnet Mailing List <karlnet@WISPNotes.com>
Date: Wed, 26 Nov 2003 22:24:53 -0600
List-post: <mailto:karlnet@WISPNotes.com>
Interesting - I was just getting ready to purchase KN-200s to resolve that very same issue, I was using Orinoco AP2000s and having same problem. I will hold hold off pending a resultion to your problem - no sense spending the money for new equipment with same problem.

I proved to Proxim that it wasn't a network congestion problem or a problem with the internet speed tests by:
1. Setting up an FTP server internal on my network.
2. Shutting off all customers - this wasn't much of an issue as I was testing network and only had people that were willing to use for free, under the understanding that it could go down at any time.
3. Repeatedly DLing & ULing a 120meg file from server to laptop & back, at vatious points in the network while watching with DU Meter.


As for your Ping test - it would seem to me that if you are Rxing ~3.4 mbps ROUND TRIP - since thisis half duplex the one way should be 2x that or 6.8mbps...?????

Personnally - I don't give rat's @ss about any latency tests or any other built in tests - Those can be manipulated by the writer of the software to show favorable results. The only thing a customer, and therefore myself, cares about is that if they are being sold a service at particular speed, they get it. The only way to prove that is to have an internal network speed test of some sort.

Here what they told me would support upto 1mbps thruput to customers at any point in the network (using TC for backhaul on one radio -the other radio to serve customers)


Anyone using a network in similiar config, i.e. 4 wireless backhauls, that can verify this?


Bryan


jna wrote:


Hello Group,

I am trying to diagnose bad transfer rates in my network and started at
square 1. We have an RG1000 SAT shooting a 3MB/S feed to a central relay
tower only about 1 mile from the datacenter (-47db Signal). The central
relay is running on kn-200 BASE. When I connect to the relay point via my
laptop I am lucky to see 800K to 1.2MB/S over the net transfers. Using the
ping fill utility I measure that the transfer rates from the RG1000 SAT to
the KN-200 is an average of 3.2 with a max of 3.6MB/S over the air.
According to the ping fill this should should be sufficent to cary my 3MB/S
feed  but I am not seeing it at the central relay not even half of it.

I asked Karlnet support about it and they said that is normal because the
ping fill shows round trip so my 3.2 to 3.6MB/S transfer to the relay point
should on support 1.6 to 1.8MB/S one way (Even though there not even seeing
that much). I questioned this and never received a reply back. On our main
tower which is still on a T1 I have my home connection to the main tower via
ping fill shows my average transfer time of 1,271,009 and max of 1,484,160.
Now if we took the half duplex analogy to mean this result is round trip and
my connection according to ping fill and karlnet should only handle 630K -
742K either up or down, correct? But if this is true then why is it I can
register on the bandwidth testing sites using this same connection double
that actually about what the ping fill says? My average over the net
connection rating is 1.2MB/S ... Does anyone else have any information on
the actuall ping fill and if it even works right at all? If the above is
true then my 3.2-3.6MB/S link to the relay is accurate should get me my
3MB/S feed there with no problem.

I cant get answers from karlnet support, does anyone have a clue here?

Is anyone else using Karlnet for backhauling locations? Are you able to
backhaul more than a T1?

Thank You,
John

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