Interpreting ndstat(1M) output

Use the ndstat(1M) command to examine the status of the network interface. With no options, ndstat shows basic information about network drivers:

   Device       MAC address in use    Factory MAC Address
   ------       ------------------    -------------------
   /dev/net0    00:00:c0:ec:d5:4c     00:00:c0:ec:d5:4c
   

                   Multicast address table
                   ------------------------
                   01:00:5e:00:00:01
   

                                FRAMES
         Unicast  Multicast Broadcast  Error    Octets   Queue Length
       ---------- --------- --------- ------ ----------- ------------
   In:      33254         0     16133      7     4880475            0
   Out:     24785         3        16      9     3029828            0

• If ``In'' and ``Out'' are both zero:

  You cannot reach a remote host and your network interface is probably using a different interrupt vector than its device driver.

• If ``In'' is non-zero but ``Out'' equals errors ``Out'':

  The I/O base address for the network adapter may be incorrect.

• If ``In'' is zero and ``Out'' equals errors ``Out'':

  The network cable may have a faulty connection.

Use the ndstat -l option to display Ethernet-specific information from the DLPI (Data Link Provider Interface) and MDI (MAC Driver Interface) modules.

In a TCP/IP environment, the netstat(1Mtcp) command (particularly the -i, -m, and -s options) is also useful for identifying physical network problems. For more information, see ``Troubleshooting TCP/IP''

If you are not using TCP/IP, see crash(1M).