Ultra 10 can boot, it receives DHCP answer, ssh works, but few minutes
after machine becomes unresponsible by net at all.
It does not respond even on ARP requests.
On Sparc host I see that `TX packets` does not grow, but RX grows.
The state of the interface is
UP BROADCAST RUNNING MULTICAST
There is no relevant kernel messages in dmesg.
next-20090317 worked fine.
Let me know if I can help.