[Cialug] best supported/performing Ethernet adapter follow-up

Nathan C. Smith smith at ipmvs.com
Tue Jun 14 09:22:03 CDT 2005

Thanks Matt,

Looks like it got it right from the start:

Settings for eth0:
        Supported ports: [ TP MII ]
        Supported link modes:   10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Supports auto-negotiation: Yes
        Advertised link modes:  10baseT/Half 10baseT/Full
                                100baseT/Half 100baseT/Full
        Advertised auto-negotiation: Yes
        Speed: 100Mb/s
        Duplex: Full
        Port: Twisted Pair
        PHYAD: 1
        Transceiver: internal
        Auto-negotiation: on
        Supports Wake-on: puag
        Wake-on: g
        Link detected: yes

-----Original Message-----
From: Matt Millard [mailto:gocyclones at eml.cc] 
Sent: Tuesday, June 14, 2005 9:18 AM
To: Central Iowa Linux Users Group
Subject: RE: [Cialug] best supported/performing Ethernet adapter follow-up

On Tue, 14 Jun 2005 08:50:17 -0500, "Nathan C. Smith" <smith at ipmvs.com>
> Seriously, the change made a noticeable difference.  Thanks to all who 
> recommended Intel.
> BTW, I had the presence of mind to disable the onboard network 
> controller before booting with the new card in place and when Redhat 9 
> booted KUDZU noticed the RHINE was gone and disabled it, found the 
> Intel and enabled it, and then asked if I wanted to migrate my 
> settings (oh yeah!).  Worked great, probably saved me another 15 
> minutes of futzing with settings and checking things over.  I've never 
> seen Windows do that.

One thing to check that may help even more is to see what the card is
actually running at.  I know that a lot of our Intel cards come up 100 half
duplex with autonegotiate on.  This doesn't work well in our environment
where they expect everything to be 100 full autoneg off. You can check it
out in RH9 with "ethtool eth0"  or "mii-tool eth0". Read up on the man pages
for setting it manually or in /etc/modules.conf add:

 alias eth0 e100

 options e100 e100_speed_duplex=4,4

  Matt Millard
  gocyclones at eml.cc

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