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Re: (ASCEND) Slowdowns with FTP/mail attachments

Try turning off LQM.  We've seen it cause far too many problems here and
leave it off now.  It doesn't solve all connection woes, but it does make
things much better.  Also, what are the MTUs of the clients having
problems?  An MTU of 576 might make things much better.

Regards,
Joe Shaw - jshaw@insync.net
NetAdmin - Insync Internet Services
Fortune: "Future looks spotty.  You will spill soup in late evening."

On Tue, 24 Feb 1998, Peter Lalor wrote:

> We have a Max 4000 (5.0Ap42) and a TNT (1.3Ap20). We've recently started
> getting reports from a small percentage of modem clients (and a single ISDN
> TA client) that they see sporadic slowdowns getting mail, especially with
> large messages, and with FTP transfers. Web surfing is less affected, but
> will tend to also show problems if a client is also experiencing the other
> issues.
> 
> I've been to a client's site and experienced the problem. After working on
> his machine extensively, I'm not sure the problem is on the client(s) side.
> It's too erratic, and it does affect a (small) number of clients.
> 
> The problem is too erratic to easily troubleshoot, but it appears that
> whether I dial into the Max 4000 or the TNT (which are connected via a
> Frame Relay T1), the problem persists. So it doesn't appear to be a
> specific router.
> 
> I tried different dialer software on the client side, to no avail. When the
> problem is happening, I see packet loss of 5-10%, measured by having one of
> the routers (not the one the client is dialed into) send a ping stream.
> 
> I have LQM on on both routers.
> 
> Does anyone have any hints on troubleshooting this? It's hard as hell to
> even reproduce, let alone fix.
> 
> Any and all input greatly appreciated. Thanks.
> 
> Peter Lalor
> Infoasis
> plalor@infoasis.com
> http://www.infoasis.com/
> 415-459-7991 x102
> 415-459-7992 fax
> 
> 
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