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RE: [Karlnet] New repeater WIPOP has bad ping/jitter.

To: "'Karlnet Mailing List'" <karlnet@WISPNotes.com>
Subject: RE: [Karlnet] New repeater WIPOP has bad ping/jitter.
From: "Dan Metcalf" <dan.metcalf@wbsysnet.com>
Reply-to: Karlnet Mailing List <karlnet@WISPNotes.com>
Date: Sun, 18 Apr 2004 15:51:50 -0400
List-post: <mailto:karlnet@WISPNotes.com>
Hey Kevin, how are things at the new job?

> -----Original Message-----
> From: karlnet-bounces@WISPNotes.com
[mailto:karlnet-bounces@WISPNotes.com]
> On Behalf Of Kevin Knuth
> Sent: Sunday, April 18, 2004 2:55 PM
> To: 'Norm Young'; 'Karlnet Mailing List'
> Subject: RE: [Karlnet] New repeater WIPOP has bad ping/jitter.
> 
> Norm,
> 
> I know sometimes this sounds redundant- but it does help narrow it
down
> if you use the ping fill test and ONLY check on segment of a link at a
> time.  This really helps isolate the problem.
> 
> Kevin
> 
> ************************************************
> Kevin R. Knuth
> Business Development Manager
> (260) 424-9690 - Regional Office
> (818) 760-1000 x 233 -  Corporate Office
> kknuth@ai-wireless.com - Email
> www.ai-wireless.com - Web
> ************************************************
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> 
> 
> -----Original Message-----
> From: karlnet-bounces@WISPNotes.com
> [mailto:karlnet-bounces@WISPNotes.com] On Behalf Of Norm Young
> Sent: Sunday, April 18, 2004 12:23 PM
> To: Karlnet Mailing List
> Subject: [Karlnet] New repeater WIPOP has bad ping/jitter.
> 
> I've recently added a KN-205/KarlBridge/Router (v4.44-02-020917
knrgotcn
> SN-xKNRG+*********458 V4.35) to our network, using it as a
> repeater/secondary WIPOP to fill in an area that had no coverage.
> 
> One of the radios is set up to be a satellite, communicating with the
> main
> WIPOP, the other in PtMP/ISP Basestation to service the unserved area.
> The
> satellite is on CH1, the PtMP is on CH7.   Signal strength back to the
> main
> WIPOP is very good, that to the one existing  (test) client on the
PtMP
> interface is marginal with S/N ratio of 10-12dB.
> 
>  The whole network is bridged.  I've set up  a new IP subnet for this
> repeater, with the idea of moving to routing, as I'm going to have
> traffic
> for this area that needs to go only to this repeater, but I haven't
> implemented it yet.  The whole network is running v4.44, and is a mix
of
> older RGs and a range of KN-50's/Ubicoms using firmware from
> v1.00-00-052215
> to 1.10-00-101315.
> 
>  The throughput is good, the ping times and jitter are unacceptably
bad.
> Pings to the repeater from other clients on the same main WIPOP are
> about
> normal, 25-100mS range, with most in the 20mS area.  Pings to the
> repeater
> from the backhaul at the main WIPOP are 11mS-50mS, most being in the
low
> teens.
> 
> However, pings through the new repeater to the one client on the PtMP
> (CH7)
> interface are simply awful.   From the main WIPOP backbone they are
from
> 14mS-500mS, with most being around 200mS.  Pings back from the client
> are
> just as bad.  Pings from one of the Ethernet interfaces on the
repeater
> back
> to the main WIPOP also are rough, with lots of latency and jitter.
> 
> Anyone have any comments on what could be wrong here?  I'd say signal
> strength, but I happened to notice these jitter/latency issues with
the
> system while it was burning in on the bench, as well.
> 
> Norm
> 
> 
> 
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