Date: Sun, 16 Mar 2008 15:29:52 -0500 (CDT) From: "Sean C. Farley" <scf@FreeBSD.org> To: freebsd-net@FreeBSD.org Subject: Frequent pauses with Linux-based router Message-ID: <alpine.BSF.1.00.0803161517370.56728@thor.farley.org>
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I have noticed that with a Linux-based Netgear DG834G (DSL modem) frequent pauses (example[1]) between external systems and 7-STABLE (March 14th). At first, I thought it was ipfilter or ipnat, but I took those out of the picture by activating telnet on the router and connecting directly to it. Even running "ls /usr/sbin" on the router would pause occasionally. I did not (or did not recall) have these problems with 6-STABLE (post 6.2). I switched out the NIC (FA-311 (sis) to a FA-310 (dc)), cable and tried different ports on the modem by which to connect. I also tried disabling all RFC sysctl's and SACK. Nothing helped. Finally, I brought out an old DSL modem (SpeedStream 5660). This fixed the issue. I think this maybe a specific issue between Linux (2.4.17_mvl21-malta-mips_fp_le) and FreeBSD 7. Is there anything else I may test to see what is happening? Sean 1. http://www.farley.org/freebsd/tmp/DSL/dsl-dmp.txt (telnet session between gateway and DSL modem) -- scf@FreeBSD.org
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