RE: 3c905C-TX : not working in 100Mbps / Full Duplex ?

It's usually best not to hard code the NICs to any particular setting;
the Linux driver seems to work best when it's set to Autonegotiation
(NWAY).

On Thu, 9 Jan 2003 05:39:16 -0600, "Leslie" <[email protected]> said:
> I have the same issue with the 905B and 905C, also used the 3Com Dos
> Based
> CFG util to hard code the Nics to 100/full.
> 
> 
> -----Original Message-----
> From: [email protected] [mailto:[email protected]]On Behalf Of
> Emmanuel Viennet
> Sent: Thursday, January 09, 2003 2:55 AM
> To: [email protected]
> Subject: [vortex] 3c905C-TX : not working in 100Mbps / Full Duplex ?
> 
> 
> 
> Hi,
> 
> we use 3COM 3c905C-TX PCI adapters under
> linux 2.4.18 (RedHat 8.0 or 7.3), using
> 3c59x driver module.
> 
> It works fine in 10 Mbps half-duplex, but we could'nt set it to 100/Full
> Duplex.
> 
> The adapter is connected directly to a CISCO 2900 10/100 switch.
> 
> We can't get setup a correct connexion at 100/FD.
> 
> We tried the following:
>  - switch auto-negociating, card auto-negociating
> 
>  - switch forced to 100/FD, card forced
>    (either with options 3c59x options=0x0200
>     or options 3c59x options=4 full_duplex=1
>     or even using   mii-tool -F 100baseTx-FD )
> 
> 
> In all cases, we get "carrier errors", as in this example:
> 
> eth1      Lien encap:Ethernet  HWaddr 00:04:75:C8:6B:B6
>           inet adr:10.10.0.1  Bcast:10.10.255.255  Masque:255.255.0.0
>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           RX packets:3421953 errors:0 dropped:0 overruns:1 frame:0
>           TX packets:2794227 errors:0 dropped:0 overruns:0
> carrier:2793937
>           collisions:0 lg file transmission:100
>           RX bytes:980768562 (935.3 Mb)  TX bytes:2223140870 (2120.1 Mb)
>           Interruption:5 Adresse de base:0xe880
> 
> 
> Connectivity is OK, but paquets are loosed, and NFS performance
> is very poor.
> 
> We tried this on several PC, several 3COM cards and several switches
> with the same results...
> The same setup works perfectly with Ethernet Pro 100 (eepro100) or
> older 3COM cards (905B).
> 
> 
> Any advice ? (we have a *lot* of 905C-TX and feel quite desesperated...)
> 
> Emmanuel
> 
> 
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> 
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-- 
:  o  : Malcolm Scott    :: PGP key: http://lcolm.org.uk
: /O\ : <[email protected]> :: Home: http://advogato.com/person/mascot
: ~ ~ :
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