Maybe worth locking it to long for PtP links and leaving it auto for Client to AP?

Chris Gotstein
Sr Network Engineer
UP Logon/Computer Connection UP
500 N Stephenson Ave
Iron Mountain, MI 49801
Phone: 906-774-4847
Fax: 906-774-0335
ch...@uplogon.com

Josh Luthman wrote:
Every customer I have left it figure out.  The disadvantage is that it goes
up and down based on usage.  This is bad for VoIP.

However, I have had no complaints.

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

"When you have eliminated the impossible, that which remains, however
improbable, must be the truth."
--- Sir Arthur Conan Doyle


On Thu, Jun 18, 2009 at 10:43 AM, Chris Gotstein <ch...@uplogon.com> wrote:

I've been setting it to auto, does it matter a whole lot 1 way or the
other?  Are others forcing the preamble?

Chris Gotstein
Sr Network Engineer
UP Logon/Computer Connection UP
500 N Stephenson Ave
Iron Mountain, MI 49801
Phone: 906-774-4847
Fax: 906-774-0335
ch...@uplogon.com

Josh Luthman wrote:

For some reason it doesn't actually use the "I'm Feeling Lucky" button =/
The first link reads:

The 18 byte ("long preamble") preamble is used to signal "here is a train
of
data coming" to the receiver. The 802.11b standard gives an option of
reducing the size of the PLCP preamble to 9 bytes *("short preamble"),
this
significantly increases the throughput performance at higher data rates*.

One downside to the PLCP is that the PLCP preamble and header is always
transmitted at 1Mbps, regardless of the transmission rate for the rest of
the data. This means that the transfer time is constant at 192 Usec
(microseconds) for the PLCP with long preamble. The short preamble version
does a little better, transmitting the shorter preamble at 1Mbps and the
header at 2Mbps, shortening the transmit time to 96 Usec.

Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

"When you have eliminated the impossible, that which remains, however
improbable, must be the truth."
--- Sir Arthur Conan Doyle


On Thu, Jun 18, 2009 at 10:15 AM, Chris Gotstein <ch...@uplogon.com>
wrote:

 Ouch, that wasn't so nice!
Yes, i do know how to use google, but was hoping someone would just give
me
a quick explanation, as in real world experience.

Chris Gotstein
Sr Network Engineer
UP Logon/Computer Connection UP
500 N Stephenson Ave
Iron Mountain, MI 49801
Phone: 906-774-4847
Fax: 906-774-0335
ch...@uplogon.com

Josh Luthman wrote:

 http://tinyurl.com/lf75qw
Josh Luthman
Office: 937-552-2340
Direct: 937-552-2343
1100 Wayne St
Suite 1337
Troy, OH 45373

"When you have eliminated the impossible, that which remains, however
improbable, must be the truth."
--- Sir Arthur Conan Doyle


On Thu, Jun 18, 2009 at 10:06 AM, Chris Gotstein <ch...@uplogon.com>
wrote:

 What is the difference between short and long preamble?

Chris Gotstein
Sr Network Engineer
UP Logon/Computer Connection UP
500 N Stephenson Ave
Iron Mountain, MI 49801
Phone: 906-774-4847
Fax: 906-774-0335
ch...@uplogon.com


Steve Barnes wrote:

 Thanks a bunch.  That means those are ones that my installers didn't

setup
right GREAT.

Steve Barnes
Manager
PCS-WIN
RC-WiFi Wireless Internet Service


-----Original Message-----
From: mikrotik-boun...@mail.butchevans.com
[mailto:mikrotik-boun...@mail.butchevans.com] On Behalf Of Robert
Andrews
Sent: Thursday, June 18, 2009 9:22 AM
To: Mikrotik discussions
Subject: Re: [Mikrotik] Tx/Rx Rate

Short Preamble

Steve Barnes wrote:

 I have updated several of my towers to 3.24 and started noticing on
the

Registration Tab in the Tx/Rx Rate column I have a most that say
11Mbps/11Mbps.  But I have a few that will say 11Mbps-SP/11Mbps-SP.
What
does the SP signify?

Steve Barnes
RC-WiFi

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