hi,
i just recently upgraded our firewall from 3.7 to 3.8 and am now
seeing errors on our internal interface:
fw:~> netstat -i -I em1 1
em1 in em1 out total in total out
packets errs packets errs colls packets errs packets errs colls
868776781 9354286 861778095 0 0 3822691341 9354286 3782693933 0
0
1497 14 1500 0 0 5938 14 5631 0 0
1606 10 1743 0 0 6136 10 5822 0 0
1615 10 1685 0 0 5853 10 5605 0 0
1604 4 1642 0 0 4961 4 4988 0 0
that is a error rate of about 1%. to be honest i don't know if i was
seeing this when the firewall was running 3.7, i can't remember if i
checked. here is some info about em1:
fw:~> ifconfig em1
em1: flags=8943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST> mtu 1500
lladdr 00:03:47:72:95:4b
media: Ethernet autoselect (1000baseT full-duplex)
status: active
inet 142.103.3.254 netmask 0xffffff00 broadcast 142.103.3.255
inet6 fe80::203:47ff:fe72:954b%em1 prefixlen 64 scopeid 0x2
the interface is in promiscuous mode since argus
(www.qosient.com/argus) is listening on em1. i stopped argus and it
made no noticeable difference to the number of err packets. em1 is
connected to our passport 8600 router, behind which our department
live. em0 is to the outside world, and i see no error packets there.
pf is running, and appears to be doing its thing ok. infact
everything seems fine, i guess a few packets not making it isn't the
end of the world, tcp just retries, but it would be nice to know what
is going on.
i'm at a bit of a loss as to what to do. it would be nice to figure
out if the packets are coming from a particular source or are they
random. but i can't figure that out with tcpdump, can you? is the
machine just overloaded, is the nic driver buggy?
any help would be much appreciated. below is the dmesg output.
thanks!
matt
fw:~> dmesg
OpenBSD 3.8-stable (GENERIC.MP) #0: Fri Apr 28 05:09:48 PDT 2006
[EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC.MP
cpu0: Intel(R) Xeon(TM) CPU 2.66GHz ("GenuineIntel" 686-class) 2.66 GHz
cpu0:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,CNXT-ID
real mem = 1072717824 (1047576K)
avail mem = 972161024 (949376K)
using 4278 buffers containing 53739520 bytes (52480K) of memory
mainbus0 (root)
bios0 at mainbus0: AT/286+(82) BIOS, date 12/18/03, BIOS32 rev. 0 @ 0xfd6e0
pcibios0 at bios0: rev 2.1 @ 0xfd6e0/0x920
pcibios0: PCI IRQ Routing Table rev 1.0 @ 0xfde80/352 (20 entries)
pcibios0: PCI Interrupt Router at 000:31:0 ("Intel 82801CA LPC" rev 0x00)
pcibios0: PCI bus #4 is the last bus
bios0: ROM list: 0xc0000/0x8000 0xc8000/0x1000 0xe3000/0x1000!
mainbus0: Intel MP Specification (Version 1.4) ( SE7501CW2)
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: apic clock running at 132 MHz
cpu1 at mainbus0: apid 6 (application processor)
cpu1: Intel(R) Xeon(TM) CPU 2.66GHz ("GenuineIntel" 686-class) 2.66 GHz
cpu1:
FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,SBF,CNXT-ID
mainbus0: bus 0 is type PCI
mainbus0: bus 1 is type PCI
mainbus0: bus 2 is type PCI
mainbus0: bus 3 is type PCI
mainbus0: bus 4 is type PCI
mainbus0: bus 5 is type ISA
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins
ioapic1 at mainbus0: apid 3 pa 0xfec80000, version 20, 24 pins
ioapic2 at mainbus0: apid 4 pa 0xfec80400, version 20, 24 pins
pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
pchb0 at pci0 dev 0 function 0 "Intel E7501 MCH Host" rev 0x01
"Intel E7500 DRAM" rev 0x01 at pci0 dev 0 function 1 not configured
ppb0 at pci0 dev 2 function 0 "Intel E7500 MCH" rev 0x01
pci1 at ppb0 bus 1
"Intel 82870P2 IOxAPIC" rev 0x04 at pci1 dev 28 function 0 not configured
ppb1 at pci1 dev 29 function 0 "Intel 82870P2 PCI-PCI" rev 0x04
pci2 at ppb1 bus 2
em0 at pci2 dev 1 function 0 "Intel PRO/1000XT (82544EI)" rev 0x02: apic 3 int
0 (irq 10), address: 00:02:b3:9d:d4:64
em1 at pci2 dev 2 function 0 "Intel PRO/1000T (82543GC)" rev 0x02: apic 3 int 4
(irq 10), address: 00:03:47:72:95:4b
"Intel 82870P2 IOxAPIC" rev 0x04 at pci1 dev 30 function 0 not configured
ppb2 at pci1 dev 31 function 0 "Intel 82870P2 PCI-PCI" rev 0x04
pci3 at ppb2 bus 3
"Intel E7500 MCH" rev 0x01 at pci0 dev 2 function 1 not configured
uhci0 at pci0 dev 29 function 0 "Intel 82801CA/CAM USB" rev 0x02: apic 2 int 16
(irq 10)
usb0 at uhci0: USB revision 1.0
uhub0 at usb0
uhub0: Intel UHCI root hub, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
uhci1 at pci0 dev 29 function 1 "Intel 82801CA/CAM USB" rev 0x02: apic 2 int 19
(irq 5)
usb1 at uhci1: USB revision 1.0
uhub1 at usb1
uhub1: Intel UHCI root hub, rev 1.00/1.00, addr 1
uhub1: 2 ports with 2 removable, self powered
uhci2 at pci0 dev 29 function 2 "Intel 82801CA/CAM USB" rev 0x02: apic 2 int 18
(irq 10)
usb2 at uhci2: USB revision 1.0
uhub2 at usb2
uhub2: Intel UHCI root hub, rev 1.00/1.00, addr 1
uhub2: 2 ports with 2 removable, self powered
ppb3 at pci0 dev 30 function 0 "Intel 82801BA AGP" rev 0x42
pci4 at ppb3 bus 4
twe0 at pci4 dev 2 function 0 "3ware Escalade IDE RAID" rev 0x01: apic 2 int 19
(irq 5)
twe0: Escalade V1.3
scsibus0 at twe0: 16 targets
sd0 at scsibus0 targ 0 lun 0: <3WARE, Host drive #00, > SCSI2 0/direct fixed
sd0: 114472MB, 14593 cyl, 255 head, 63 sec, 512 bytes/sec, 234439600 sec total
vga1 at pci4 dev 3 function 0 "ATI Rage XL" rev 0x27
wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
fxp0 at pci4 dev 4 function 0 "Intel 82557" rev 0x0d, i82550: apic 2 int 20
(irq 11), address 00:0e:0c:4d:1d:cd
inphy0 at fxp0 phy 1: i82555 10/100 PHY, rev. 4
em2 at pci4 dev 5 function 0 "Intel PRO/1000MT (82540EM)" rev 0x02: apic 2 int
23 (irq 10), address: 00:0e:0c:4d:1d:f2
ichpcib0 at pci0 dev 31 function 0 "Intel 82801CA LPC" rev 0x02
pciide0 at pci0 dev 31 function 1 "Intel 82801CA IDE" rev 0x02: DMA, channel 0
configured to compatibility, channel 1 configured to compatibility
atapiscsi0 at pciide0 channel 0 drive 0
scsibus1 at atapiscsi0: 2 targets
cd0 at scsibus1 targ 0 lun 0: <TEAC, CD-224E, 1.9A> SCSI0 5/cdrom removable
cd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2
pciide0: channel 1 disabled (no drives)
"Intel 82801CA/CAM SMBus" rev 0x02 at pci0 dev 31 function 3 not configured
isa0 at ichpcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5
pckbd0 at pckbc0 (kbd slot)
pckbc0: using irq 1 for kbd slot
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pmsi0 at pckbc0 (aux slot)
pckbc0: using irq 12 for aux slot
wsmouse0 at pmsi0 mux 0
pcppi0 at isa0 port 0x61
midi0 at pcppi0: <PC speaker>
spkr0 at pcppi0
sysbeep0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
lm0 at isa0 port 0x290/8: W83627HF
npx0 at isa0 port 0xf0/16: using exception 16
pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
pccom1: console
biomask 0 netmask 0 ttymask 0
pctr: user-level cycle counter enabled
dkcsum: sd0 matches BIOS drive 0x80
root on sd0a
rootdev=0x400 rrootdev=0xd00 rawdev=0xd02
