SGI 1200, 1.0.1 - No Gigabit ethernet?

[Tony Clark <tony@xxxxxxxxxx>]

Hello again,

And I thought it was going so well...  After advancing with the install last
night, the machine now boots quite happily.  Thanks to all who contributed
suggestions.

Now though, the gigabit ethernet no longer wants to work.  The box is as
follows:

SGI 1200, 1GB Ram, 2 x 800Mhz P3
Netgear GA620T Gigabit ethernet (acenic drivers)
Adaptec 29160 SCSI controller (talking to an Exabyte LTO tape library)
1 x internal scsi disk, 4 x external SCSI disks

The card has negotiated with the switch properly (it previously worked just
fine under 1.0 XFS and RH 7.0), and looking at netstat -i i can see incoming
and outgoing packet counts that are very low, but they are being counted.
No ping or any IP traffic is working.

I've switched over to the internal 10/100, which works just fine.

I'd love my gigabit back; any thoughts out there?

Thanks,

Tony