Messages in this thread | | | From | "Sean Hunter" <> | Date | Wed, 1 Sep 1999 11:35:38 +0100 | Subject | Re: 2.2.11 ppp slowdown && issues |
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This looks very much like the messages printed out by the buggy ping that shipped with RH6.0 for alpha. I have updated my package and these messages went away. I've never seen these on intel, but I don't use ppp.
Sean
On Tue, Aug 31, 1999 at 12:55:44PM -0700, Ronald Cole wrote: > My problems seemed to come with me switching over to RedHat 6.0. I'm > running their 2.2.5-22 kernel. I didn't have these problems when I > was running Slackware 3.4 with a 2.0.36 kernel. > > When saturating the connection (a V.90 connection,say by downloading > a news active file), if I issue a ping, I get lots of messages about > byte 8 not being correct: > > $ ping iwvisp.com > PING iwvisp.com (207.141.203.5) from 207.141.203.99 : 56 data bytes > 64 bytes from 207.141.203.5: icmp_seq=0 ttl=198 time=676.7 ms > 64 bytes from 207.141.203.5: icmp_seq=1 ttl=198 time=199.8 ms > 64 bytes from 207.141.203.5: icmp_seq=2 ttl=198 time=1430.4 ms > wrong data byte #8 should be 0x53 but was 0x52 > 52 81 bc 37 6e 94 6 0 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f > 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f > 64 bytes from 207.141.203.5: icmp_seq=3 ttl=198 time=1280.1 ms > wrong data byte #8 should be 0x54 but was 0x53 > 53 81 bc 37 81 95 6 0 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f > 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f > 64 bytes from 207.141.203.5: icmp_seq=4 ttl=198 time=1459.5 ms > wrong data byte #8 should be 0x55 but was 0x54 > 54 81 bc 37 2f 97 6 0 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f > 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f > 64 bytes from 207.141.203.5: icmp_seq=5 ttl=198 time=1149.4 ms > wrong data byte #8 should be 0x56 but was 0x55 > 55 81 bc 37 79 99 6 0 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f > 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f > 64 bytes from 207.141.203.5: icmp_seq=6 ttl=198 time=309.6 ms > 64 bytes from 207.141.203.5: icmp_seq=7 ttl=198 time=444.2 ms > 64 bytes from 207.141.203.5: icmp_seq=8 ttl=198 time=150.2 ms > 64 bytes from 207.141.203.5: icmp_seq=9 ttl=198 time=140.2 ms > > I don't believe that this is a flow control problem, since it's always > byte 8. Also, "ifconfig ppp0" doesn't report any errors. I don't get this > problem when the only thing going over the connection is a ping. > > Secondly, if I start two simultaneous ftp downloads, the ppp > connection will appear to hang. I can see by the TX light on my modem > that packets are being sent, and by the RX light that packets are > coming back, but "ifconfig ppp0" reports RX and frame errors on every > packet. > > I can completely reproduce these problems. How do I begin to debug > them? > > -- > Forte International, P.O. Box 1412, Ridgecrest, CA 93556-1412 > Ronald Cole <ronald@forte-intl.com> Phone: (760) 499-9142 > President, CEO Fax: (760) 499-9152 > My PGP fingerprint: 15 6E C7 91 5F AF 17 C4 24 93 CB 6B EB 38 B5 E5 > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.rutgers.edu > Please read the FAQ at http://www.tux.org/lkml/ >
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