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From: Dan Simoes <dans@audifans.com>
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Subject: network problems on a netra T1
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I was able to install 5.1 on a Sun Netra T1 without much trouble, and
I'm pretty happy with the way it looks and performs.
My one problem I've not been able to solve is this - after rebuilding
the kernel, I cannot get it to come up on the network.  I initially
pulled a lot of things out, but even with a default kernel now, it seems
to be flakey.  The interface itself is present, but it shows "no
carrier" as the status.  I can't seem to find anything else that's
wrong.  Of course, I have a solid link light. :)

nightcrawler# uname -a
FreeBSD nightcrawler 5.1-CURRENT FreeBSD 5.1-CURRENT #0: Fri Dec 12
19:14:30 EST 2003     root@nightcrawler:/usr/obj/usr/src/sys/GENERIC 
sparc64


nightcrawler# dmesg | grep gem0
gem0: <Sun ERI 10/100 Ethernet Adaptor> mem 0xe0440000-0xe045ffff irq 28
at device 5.1 on pci1
miibus0: <MII bus> on gem0
gem0: Ethernet address: 00:03:ba:05:16:d8, 2KB RX fifo, 2KB TX fifo

nightcrawler# ifconfig gem0
gem0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
        inet 10.10.5.38 netmask 0xffffff00 broadcast 10.10.5.255
        inet6 fe80::203:baff:fe05:16d8%gem0 prefixlen 64 scopeid 0x1 
        ether 00:03:ba:05:16:d8
        media: Ethernet autoselect (none)
        status: no carrier