Chris,
I agree with your point about not needing to fix a constant situation.
I would be much more interested in Signal level in dBm as opposed to signal
to noise ratio. And since the interference seems to be intermittent I am
wondering why you are having problems. Have you noticed (I am too lazy on a
Sunday to go back and read this whole thread!) any issues on the ETHERNET
side of the unit? AND, this particular client, any idea what kind of data
he is trying to move when the problems occur? And do you use throttling?
Just curious.....I will have to have tech support work with you to really
try to find a solution.
Kevin
-----Original Message-----
From: karlnet-admin@WISPNotes.com [mailto:karlnet-admin@WISPNotes.com]On
Behalf Of Chris Conn
Sent: Sunday, December 15, 2002 4:12 PM
To: karlnet@WISPNotes.com
Subject: RE: [Karlnet] Strange retransmit problem
On Sun, 15 Dec 2002, Kevin Knuth wrote:
> The TurboCell algorithm is pretty complex, so I am not sure of the "delay
or
> timeout" before it moves on.
>
> However, you must realize the forcing TurboCell to "not wait" has an
effect
> too! I just wonder if the benefit outweighs the other possible effects on
> performance. A question that WISPs have to ask themselves is how many
links
> do they have that have less then great signal? Most WISPs run with very
> marginal links. If we tell TurboCell to ignore those, they may as well
close
> up shop!
Hello,
As I said, this problem only occurs for a few minutes, where a single
satellite is hogging all resources. No other satellites get polled. I
don't believe that this "fix" would necessarily have to take into account
a constant situation but rather a particular case where the satellite is
obviously not sending something back to the base and it gets stuck. I
don't see how it can be considered normal that a satellite can cause an
entire multipoint setup to become unuseable for a number of minutes.
As for marginal, during one of these "problems", I had 20db+ SNR on either
the base or the satellite, therefore I doubt it is a noise issue. And the
satellites in question have less than 2% retransmits at any given time
other than these particular incidents where we have several thousand % of
retransmit.
Chris
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