Date: Thu, 12 Nov 1998 21:54:06 -0600 (CST) From: Dave Bodenstab <imdave@mcs.net> To: questions@FreeBSD.ORG Subject: Are collisions normal on a local net Message-ID: <199811130354.VAA11666@base486.home.org>
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Dear Network Wizards, I've got 3 PC's networked: CPU OS Board Driver ---------- --------------------- -------------------------- ----- 486 FreeBSD 2.0.5 ne2000 clone ed 586/mmx FreeBSD 2.2.5 ne2000 clone ed 2 x 686/pro FreeBSD 3.0 (8/4 snap) Intel Etherexpress Pro/100B fxp (integrated on a PR440FX MB) When I do a ``netstat -i'' on either of the machines with the ne2000 cards, I see no collisions, but I do see a few IERRS, ie: Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll ed0 1500 <Link>00.40.05.52.8d.ad 8352016 15 5678032 0 0 ed0 1500 10 base486 8352016 15 5678032 0 0 However, from the 3.0 box, I see: Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll fxp0 1500 <Link> 00.a0.c9.49.6f.9e 199825 0 363568 0 30635 fxp0 1500 10/24 base686 199825 0 363568 0 30635 This is after only about one day with the 3.0 machine on the network: base486 up 14+00:30, 2 users, load 0.02, 0.11, 0.22 base586 up 14+00:21, 2 users, load 0.81, 0.73, 0.61 >>base686 up 1+05:25, 1 user, load 0.00, 0.00, 0.00 << If I rcp a big file between the two ne2000 boxes, the collision led on the hub flashed occasionally, but if I do the same between one of the ne2000 boxes and the intel etherexpress, the collision led is on much more often. Is this normal or do I have something wrong with my setup? Could it be something with the fxp driver or hardware trying to go at 100M instead of 10M? I notice that the fxp driver can be ifconfig'ed with a media type and options... I tried -media 10baseT/UTP but it didn't seem to affect anything. Dave Bodenstab imdave@mcs.net For completeness, I've attached the ifconfig's and dmesg from each system: 486 FreeBSD 2.0.5 -------------------- ed0: flags=8863<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST> mtu 1500 inet 10.0.0.1 netmask 0xffffff00 broadcast 10.0.0.255 FreeBSD 2.0.5-950622-SNAP #0: Wed Dec 31 02:26:08 CST 1997 bin@base486.home.org:/usr/src/sys/compile/base486 CPU: i486 DX2 (486-class CPU) Origin = "GenuineIntel" Id = 0x435 Stepping=5 Features=0x3<FPU,VME> real memory = 33161216 (8096 pages) avail memory = 30670848 (7488 pages) Probing for devices on the ISA bus: ed0 at 0x280-0x29f irq 10 on isa ed0: address 00:40:05:52:8d:ad, type NE2000 (16 bit) 586 mmx FreeBSD 2.2.5 ----------------------- ed0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 inet 10.0.0.2 netmask 0xffffff00 broadcast 10.0.0.255 ether 00:40:05:4a:68:d6 Copyright (c) 1992-1997 FreeBSD Inc. Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. FreeBSD 2.2.5-RELEASE #4: Sun Aug 30 14:27:15 CDT 1998 bin@base586.home.org:/usr/src/sys/compile/base586 CPU: Pentium (200.46-MHz 586-class CPU) Origin = "GenuineIntel" Id = 0x544 Stepping=4 Features=0x8001bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8> real memory = 33554432 (32768K bytes) avail memory = 30457856 (29744K bytes) ed0 at 0x280-0x29f irq 11 on isa ed0: address 00:40:05:4a:68:d6, type NE2000 (16 bit) PR440FX 2 x 686/pro FreeBSD 3.0 8/4 snap --------------------------------------------- fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500 inet 10.0.0.3 netmask 0xffffff00 broadcast 10.0.0.255 ether 00:a0:c9:49:6f:9e media: autoselect supported media: autoselect 100baseTX <full-duplex> 100baseTX 10baseT/UTP <full-duplex> 10baseT/UTP Copyright (c) 1992-1998 FreeBSD Inc. Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. FreeBSD 3.0-19980804-SNAP #0: Sun Aug 30 14:26:13 CDT 1998 bin@base686.home.org:/usr/src/sys/compile/smp Timecounter "i8254" frequency 1193182 Hz cost 3640 ns CPU: Pentium Pro (686-class CPU) Origin = "GenuineIntel" Id = 0x619 Stepping=9 Features=0xfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV> real memory = 67108864 (65536K bytes) avail memory = 62803968 (61332K bytes) FreeBSD/SMP: Multiprocessor motherboard Probing for devices on PCI bus 0: fxp0: <Intel EtherExpress Pro 10/100B Ethernet> rev 0x02 int a irq 18 on pci0.6.0 fxp0: Ethernet address 00:a0:c9:49:6f:9e To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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