Date: Fri, 7 Apr 1995 08:33:25 -0400 From: starkhome!gene@sbstark.cs.sunysb.edu (Gene Stark) To: "Mike O'Brien" <antares.aero.org!obrien@sbstark.cs.sunysb.edu> Cc: questions@FreeBSD.org Subject: pppstats shows 5% packet error rate Message-ID: <199504071233.IAA01440@starkhome.cs.sunysb.edu> In-Reply-To: "Mike O'Brien"'s message of Fri, 7 Apr 1995 01:55:10 -0700
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> My PPP connection appears to run as it should, but it also shows >about a 5-10% packet error rate. Running pppstats, I can see batches of 7 >or 8 errors happening at a time during, say, an inbound FTP. During >these periods the modem shows as mostly idle. Possibly it's waiting for a >TCP timeout/retransmission. I am running a U.S. Robotics Sportster >modem, 14.4Kb, dialup into an Annex box. I have 16550s in my Pentium 90. >I'm running a Logitech bus mouse and XFree86 3.1.0 at the time. > > > Is anybody else seeing this? Even suggestions of what to tear >into would be welcome. I am comfortable with banging on kernel source if >I know where to start. Are you sure that RTS/CTS flow control is enabled and working on both the modem and on the CPU? Are you getting any associated "silo overflow" messages on the console? Have you tried running "tcpdump" on the ppp interface to see what packets are coming across? How about netstat -s? - Gene Stark
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