At 02:32 PM 4/12/2010, Pyun YongHyeon wrote:
> media: Ethernet 10baseT/UTP <full-duplex> (10baseT/UTP
> <half-duplex>)
> status: active
> 0[to]#
>
> What does the half-duplex portion mean ?
>
The current configured link with ifconfig(8) is 10baseT/UDP and
current option is full-duplex(<> part) and actually negotiated
link/option is 10baseT/UDP half-duplex. Because these are
different you will encounter duplex mismatch which in turn may
yield large number of input errors.
If link partner is configured to 'auto' and link was resolved to
half-duplex even though you specified full-duplex, it could be
normal. Parallel detection normally resolves to half-duplex if
link partner use 'auto'.
Does link partner also use 10baseT/UTP full-duplex instead of
'auto'?
The other side, which I dont control, is supposedly set to 10 Full
Manual as well. I think I will have to get a box in the lab and test
for myself to see how it works where I can control both ends.
> I am seeing errors as well in netstat
>
> Name Mtu Network Address Ipkts Ierrs
> Idrop Opkts Oerrs Coll
> sis0 1500
> <Link#1> 00:00:24:d8:aa:e0 281215 0 0 269930 2560 10478
>
Show me dmesg output related with sis(4) and PHY driver. Also post
the output of "devinfo -rv | grep phy".
sis0: <NatSemi DP8381[56] 10/100BaseTX> port 0xe100-0xe1ff mem
0xa0000000-0xa0000fff irq 10 at device 6.0 on pci0
sis0: Silicon Revision: DP83816A
miibus0: <MII bus> on sis0
nsphyter0: <DP83815 10/100 media interface> PHY 0 on miibus0
nsphyter0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
sis0: Ethernet address: 00:00:24:c8:fa:e0
sis0: [ITHREAD]
sis1: <NatSemi DP8381[56] 10/100BaseTX> port 0xe200-0xe2ff mem
0xa0001000-0xa0001fff irq 10 at device 7.0 on pci0
sis1: Silicon Revision: DP83816A
miibus1: <MII bus> on sis1
nsphyter1: <DP83815 10/100 media interface> PHY 0 on miibus1
nsphyter1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
sis1: Ethernet address: 00:00:24:c8:fa:e1
sis1: [ITHREAD]
sis2: <NatSemi DP8381[56] 10/100BaseTX> port 0xe300-0xe3ff mem
0xa0002000-0xa0002fff irq 10 at device 8.0 on pci0
sis2: Silicon Revision: DP83816A
miibus2: <MII bus> on sis2
nsphyter2: <DP83815 10/100 media interface> PHY 0 on miibus2
nsphyter2: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
sis2: Ethernet address: 00:00:24:c8:fa:e2
sis2: [ITHREAD]
sis0 pnpinfo vendor=0x100b device=0x0020 subvendor=0x100b
subdevice=0x0020 class=0x020000 at slot=6 function=0
Interrupt request lines:
10
I/O ports:
0xe100-0xe1ff
miibus0
nsphyter0 pnpinfo oui=0x80017 model=0x2 rev=0x1 at phyno=0
sis1 pnpinfo vendor=0x100b device=0x0020 subvendor=0x100b
subdevice=0x0020 class=0x020000 at slot=7 function=0
Interrupt request lines:
10
I/O ports:
0xe200-0xe2ff
miibus1
nsphyter1 pnpinfo oui=0x80017 model=0x2 rev=0x1 at phyno=0
sis2 pnpinfo vendor=0x100b device=0x0020 subvendor=0x100b
subdevice=0x0020 class=0x020000 at slot=8 function=0
Interrupt request lines:
10
I/O ports:
0xe300-0xe3ff
miibus2
nsphyter2 pnpinfo oui=0x80017 model=0x2 rev=0x1 at phyno=0
s...@pci0:0:6:0: class=0x020000 card=0x0020100b
chip=0x0020100b rev=0x00 hdr=0x00
vendor = 'National Semiconductors'
device = 'DP83815/16 Fast Ethernet Adapter (MacPhyter/MacPhyter-II)'
class = network
subclass = ethernet
cap 01[40] = powerspec 2 supports D0 D1 D2 D3 current D0
s...@pci0:0:7:0: class=0x020000 card=0x0020100b
chip=0x0020100b rev=0x00 hdr=0x00
vendor = 'National Semiconductors'
device = 'DP83815/16 Fast Ethernet Adapter (MacPhyter/MacPhyter-II)'
class = network
subclass = ethernet
cap 01[40] = powerspec 2 supports D0 D1 D2 D3 current D0
s...@pci0:0:8:0: class=0x020000 card=0x0020100b
chip=0x0020100b rev=0x00 hdr=0x00
vendor = 'National Semiconductors'
device = 'DP83815/16 Fast Ethernet Adapter (MacPhyter/MacPhyter-II)'
class = network
subclass = ethernet
cap 01[40] = powerspec 2 supports D0 D1 D2 D3 current D0
On another box at the lab, I did confirm that if I set the NIC to 10
full manual
# ifconfig sis2
sis2: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=8<VLAN_MTU>
ether 00:00:24:c8:fa:de
inet 1.1.1.1 netmask 0xffffff00 broadcast 1.1.1.255
media: Ethernet 10baseT/UTP <full-duplex>
status: active
and the switch port is set to
interface FastEthernet0/33
duplex full
speed 10
it seems to work.... I wonder if the media converter I plug into is
really set to 10 Full....
---Mike
--------------------------------------------------------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, [email protected]
Providing Internet since 1994 www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
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