Lonnie,
Unfortuneately, not having UDP tests, does not allow accurate results. The
reason is that UDP will show the point at which packet loss will occur, and
at what percentage. Without that similar data, a TCP test is pointless. I
see some people do TCP speed tests (a method other than FTP), and it goes
full capacity minus the percent packet loss of a percent or so. But then
when a FTP gets done performance drops to a few hundred kb. The reason is
FTP slows itself down to attempt to reduce packetloss. IN many wireless
systems, the packetloss stays consistent and can not be removed by reducing
speed, therefore the speed just keeps going slower and slower and slower
until it crawls. A TCP test also does not show consistency of a link, or
sparatic slow down, as they all get averaged out over the time period of the
test. If there are slowdown or hesitance on a wireless link using a UDP
test, the packetloss is instantly seen. Doing a TCP test may show peek
speed or average speed, but it does not show the ability to deliver
consistent speed, what most companies need that are buying wireless to
replace T1 lines.
Relying on TCP test alone, limits your product to a lower grade product,
less than it can be. An adequate test, does not need to be a UDP test, it
can also be a layer2 test. The most valuable tool of Trango for example is
its Layer2 Linktest, that shows throughput, and most importantly packetloss
while performing that test. It gives the abilty to run a test that takes
priority over any other traffic on the link, to get the true full
performance of that link at that moment in time. It allows an integrator to
instantly be able to determine the health of their links with total
accuracy, quickly, without first disconnecting clients, that can be
complicated, when multiple Linux re-configures might be needed to stop all
other traffic.
For radios that don't have their own MAC, Iperf is one way to get most of
the data collected. Measuring packet loss is more important than measuring
top speed in my mind.
Tom DeReggi
RapidDSL & Wireless, Inc
IntAirNet- Fixed Wireless Broadband
----- Original Message -----
From: "Lonnie Nunweiler" <[EMAIL PROTECTED]>
To: "WISPA General List" <[email protected]>
Sent: Tuesday, April 11, 2006 9:54 PM
Subject: Re: [WISPA] Best system for a new WISP
It is TCP. We do not use UDP since it gives a reading that will never
be seen by a customer doing an FTP download. We are looking at
building in iperf so we should be able to do tcp or udp tests in
future.
I have a network from Valemount, BC to McBride, BC that has about 100
km of repeater distances. The shot is split in half with mountain
shots at each (43 km each) and about 5 km from each mountain top to
the POP in each town. We can pull over 20 mbps from POP to POP. It
is 8 hops and goes through 10 radios. I have pasted a speed test from
the POP in Valemount to the POP in McBride. Both are Linux systems
with 1 GHz or better processors that we use for firewall and bandwidth
control. Also I have the traceroute to show the hops.
lon-home:~/staros # starutil-1.14 10.10.29.1 password -rx
rx rate: 2286 KB/sec (Press Ctrl-C to exit)
lon-home:~/staros #
lon-home:~/staros # traceroute 10.10.29.1
traceroute to 10.10.29.1 (10.10.29.1), 30 hops max, 40 byte packets
1 192.168.250.10 0.430 ms 0.401 ms 0.496 ms
2 10.10.48.254 1.655 ms 1.447 ms 1.185 ms
3 10.10.227.254 2.686 ms 1.965 ms 5.428 ms
4 10.10.12.4 5.469 ms 3.250 ms 4.501 ms
5 10.10.47.253 4.946 ms 4.415 ms 3.581 ms
6 10.10.51.254 6.077 ms 6.472 ms 8.063 ms
7 10.14.99.254 12.615 ms * 5.777 ms
8 10.10.29.1 6.569 ms 7.295 ms 7.686 ms
lon-home:~/staros #
Lonnie
On 4/11/06, Travis Johnson <[EMAIL PROTECTED]> wrote:
Lonnie,
Is that TCP or UDP?
Travis
Microserv
Lonnie Nunweiler wrote:
Using the 533 MHz IXP-420 we can get an Atheros to just over 35 mbps
of non compressible data and almost 90 mbps of compressible data.
Lonnie
On 4/11/06, Travis Johnson <[EMAIL PROTECTED]> wrote:
Dan,
We had this discussion a few weeks ago, although it may have been on
another wireless list.
What processor and setup are you using to get 30Mbps? The fastest I have
seen with routerboard 532's in a p2p config is 20Mbps of TCP traffic
passing
thru the RB's. Do you have outdoor enclosures?
Travis
Microserv
[EMAIL PROTECTED] wrote:
I believe that the atheros chipset is capped at 35Mbps, although users of
MT
have claimed higher using very fast cpu's.
I have several atheros/MT/nstream links (PTP and PTMP) that push 30Mbps….
Pretty impressive throughput, plus adjustable channels, plus QoS for VoIP
and all the other features available make a nice system
Dan Metcalf
Wireless Broadband Systems
www.wbisp.com
781-566-2053 ext 6201
1-888-wbsystem (888) 927-9783
[EMAIL PROTECTED]
support: [EMAIL PROTECTED]
________________________________
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Travis
Johnson
Sent: Tuesday, April 11, 2006 9:28 AM
To: WISPA General List
Subject: Re: [WISPA] Best system for a new WISP
Hi,
Does anyone know actual TCP throughput with StarOS on their 533mhz boards
in just a point to point config, using 20mhz of spectrum?
Travis
Microserv
Paul Hendry wrote: All the details are on the Valemount web site
http://www.staros.com/starvx/
Cheers,
P.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On
Behalf Of Richard Goodin
Sent: 11 April 2006 09:15
To: [email protected]
Subject: RE: [WISPA] Best system for a new WISP
So... Who makes them?, how much?
Hi Richard,
This cloaking mechanism is the 5MHz and 10MHz channel sizes that
George was referring to on the Star WAR boards. Works really well and
even
seems to improve signal quality.
Cheers,
P.
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On
Behalf Of Richard Goodin
Sent: 11 April 2006 08:09
To: [email protected]
Subject: Re: [WISPA] Best system for a new WISP
Guys;
These all sound great. I was reading just a couple months back about a
WISP
operator that had a severe problem. Just a few yards away, maybe 300
feet,
another guy put up his tower. I think they were both on 2.4 GHZ, and
someone suggested a different AP that would not even be detected by
conventional systems. Something about nonstandard bandwidth, channel
spacing or coding. I really feel that stealth is best here. These other
guys have been in business for a while and could cause trouble that I do
not
need.
Lee
Trango does make a good product. I still have 2 Sunstream AP's in use.
They
are like Timex watches.
I'm using Star War boards. A little bit more than the trango s. The 2
card
boards in a 5 gig rootenna let me use the 2nd card for an omni.
Speeds are about 20+ megs or so and I cloak down to 5MHz and 10MHz
channel
sizes.
One of the things I've been doing is slapping up repeaters all over the
place. Cheap as hell, about 400.00 or so.
Lately I've ran lmr400 into some of my customers attics and installed an
omni for their home wifi. We tend to service our customers right to the
pc
and it's a lot better router than a linksys. And I have happier customers
and I'm happier.
The 2 port and the 4 port both have dual ethernet as well.
Pretty versatile product. Lonnie has come along way with the new war
platform.
George
Travis Johnson wrote:
That's on quantity 30.... $149 each. 5.8ghz, dual polarity, up to 3
miles
(add $40 for a dish and it goes up to 13 miles) and delivers up to
10Mbps.
Hard to beat! And with SmartPolling on the AP, you can get hundreds of
customers per sector.
Travis
Microserv
Rick Smith wrote:
that's only quantity (large!) pricing isn't it ?
Brian Rohrbacher wrote:
If it's pretty absent of trees you might look at 5.8. Trango has that
cpe for $150. Not going to find any propriety gear cheaper.
Richard Goodin wrote:
I have been planning my WISP for about a year, and have yet to begin
delivery of bandwidth to customers. My choice for service delivery
was
802.11b, but with increased competition from other services nearby
(about 5 miles away) I am wondering how to avoid problems. I have a
50' tower, and it is ROHN 45g. My choice for antennas would be 4 90
degree horizontal antennas. I have looked at bandwidth and shopped
it
to death. My best price is $400 from Lime Light. And I've built a
couple of servers, acquired some switches and a router. The Router
is
a Cisco 1750.
My questions:
What CPE's and AP's would work best in this environment? I want to
keep interferance to a minimum, as well as control costs. My
environment includes lots of desert, and single story buildings.
Lee
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Lonnie Nunweiler
Valemount Networks Corporation
http://www.star-os.com/
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Lonnie Nunweiler
Valemount Networks Corporation
http://www.star-os.com/
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