Server Solaris 2.5

Hello!!When I try to start my server I see this message:

Can't read disk label.
Can't open disk label package
Boot device: /iommu/sbus/ledma at 5,8400010/le at 5,8c00000 File and args:
Timeout waiting for ARP/RARP packet
Timeout waiting for ARP/RARP packet

Anybody known about this problem and your solution? The operating system is
Solaris 2.5

Tnak you

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[691 byte] By [CodeProf.com] at [2007-12-25 3:02:00]