where are you seeing "re-transmits"? I don't see them in any of the
statistics pages.
-bob
----- Original Message -----
From: "Dan Metcalf" <dan.metcalf@wbsysnet.com>
To: <karlnet@WISPNotes.com>
Sent: Thursday, December 12, 2002 8:22 AM
Subject: RE: [Karlnet] Strange retransmit problem
> I now see this after upgrading one of our wavepoint II (bnc connector)
> to v4.31, on its "backhaul" link
>
> Dan Metcalf
> Wireless Broadband Systems
> http://www.wbsysnet.com/
> 877-685-0578
> dan.metcalf@wbsysnet.com
>
>
> > -----Original Message-----
> > From: karlnet-admin@WISPNotes.com [mailto:karlnet-admin@WISPNotes.com]
> On
> > Behalf Of Kevin Knuth
> > Sent: Wednesday, December 11, 2002 7:34 PM
> > To: karlnet@WISPNotes.com
> > Subject: RE: [Karlnet] Strange retransmit problem
> >
> > Chris,
> >
> > Who have you been dealing with in our office?
> >
> > Kevin
> > ____________________________________
> > Kevin R. Knuth
> > Business Development Manager
> > North America
> > Corporate Office: 614-822-5275 x130
> > Home Office: 260-424-9690
> > Cell Phone: 260-402-6086
> > Email: kknuth@karlnet.com
> > www.karlnet.com
> > ____________________________________
> >
> > This message is intended only for the use of the Addressee and may
> contain
> > information that is CONFIDENTIAL. If you are not the intended
> recipient,
> > you are hereby notified that any dissemination of this communication
> is
> > strictly prohibited. If you have received this communication in
> error,
> > please notify us immediately and erase all copies of the message and
> its
> > attachments. Thank you.
> >
> > -----Original Message-----
> > From: karlnet-admin@WISPNotes.com
> [mailto:karlnet-admin@WISPNotes.com]On
> > Behalf Of Chris Conn
> > Sent: Wednesday, December 11, 2002 5:37 PM
> > To: karlnet@WISPNotes.com
> > Subject: [Karlnet] Strange retransmit problem
> >
> >
> > Hello to all,
> >
> >
> > I have been having a strange problem for quite a while. I have spoken
> > to Karlnet about this and they told me it was a rare occurrence and
> > _maybe_ one other customer was seeing this but all data was
> inconclusive.
> >
> > The problem:
> >
> > A situation can arise intermittently (once a week, once a month, three
> > times a day, no real pattern) where in a multi-point antenna, the base
> > station will enter a mode where it is retransmitting thousands and
> > thousands of packets to a satellite. The transmit counter does not
> > increase, only the re-transmit counter, and by the thousands at a
> time.
> > Upon looking at the Turbocell station entries, we notice that the
> > transmit and retransmit counters seem to have reset back to zero for
> the
> > satellite to which it is retransmitting, and you can watch the
> > re-transmit counters increase at an alarming rate. All other
> satellites
> > are still visible, however no TCP/IP data can pass to any satellite,
> > including the one to which the retransmits are occurring. Therefore,
> > the whole system is no longer useable. The amount of throughput
> before
> > or after can be high or low, it does not matter. This will happen day
> > or night, with or without customer usage. After a few minutes (2 to
> 5),
> > the whole thing comes back online and data starts to pass again. It
> > would seem that the base station jams on one satellite which no longer
> > can acknowledge a transmission for some reason.
> >
> > We have tried changing all hardware, using flashroms, AP1000s, new
> > antennas. In no case are we using amplification of any kind. We also
> > tried replacing the radio card in the base to a PRISM 2.5 200mW, and
> > were initially happy however the problem eventually happened therefore
> > it is not a radio firmware issue (since it is not Orinocco specific),
> > and looks to be a software issue.
> >
> > The Workaround:
> >
> > We have found that setting the base from 11Mbps to 5.5Mbps will fix
> the
> > problem in 3 out of the 4 setups that are doing this. However, in one
> > case we had to set a customer satellite all the way down to 1Mb in
> order
> > to cease totally any form of this problem. But, we obviously take a
> > performance drop in the process.
> >
> > Other info:
> >
> > All bases are running 4.31, and the clients are running a mix of 3.88
> > and 4.02. I assume however that it has to do with the base since it
> is
> > my understanding that polling should occur many times per second to
> each
> > satellite and during these periods, several minutes go by before any
> > satellite is polled other than the one the base seems to get stuck on.
> >
> > Any ideas?
> >
> > Thanks,
> >
> > Chris
> >
> > _______________________________________________
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> > Karlnet@WISPNotes.com
> > http://lists.wispnotes.com/mailman/listinfo/karlnet
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> > Karlnet@WISPNotes.com
> > http://lists.wispnotes.com/mailman/listinfo/karlnet
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