[Info-vax] hub better than switch?!

[Phillip Helbig---undress to reply]

In article <jj5ijk$q9i$1 at dont-email.me>, Albrecht Schlosser
<vms-news at go4more.de> writes: 

> $ LANCP show dev ewa0 /count

Output below.

> These counters can maybe shed some light on what's going on.

Thanks!

> The way to reset the counters is easy to remember ;-)
> 
> $ LANCP SET DEVICE /DEVICE_SPECIFIC=FUNCTION="CCOU" ewa0

Extracted to file for future reference!

> BTW.: One rule of thumb is to have both devices (switch and
> connected device) do the same with auto negotiation, either
> on or off. Bad if you have a switch that can't turn off auto
> negotiation, but maybe turning it off at the VAX (?) can help
> anyway.

No VAX, all ALPHA.


JANDER Device Counters EWA0 (6-MAR-2012 21:06:36.04):
                  Value  Counter
                  -----  -------
                7624255 Seconds since last zeroed
            75977683821 Bytes received
            33942574655 Bytes sent
              212326266 Packets received
              146920428 Packets sent
              895734754 Multicast bytes received
              426142710 Multicast bytes sent
                7256200 Multicast packets received
                3450890 Multicast packets sent
                      0 Unrecognized unicast destination packets
                     42 Unrecognized multicast destination packets
                      0 Unavailable station buffers
                      0 Unavailable user buffers
                      0 Alignment errors
                      0 Frame check errors
                      0 Frame size errors
                      0 Frame status errors
                      0 Frame length errors
                      0 Frame too long errors
                      0 Data overruns
                      0 Send data length errors
                      0 Receive data length errors
                      0 Transmit underrun errors
                      0 Transmit failures
                     23 Carrier check failures (26-FEB-2012 16:42:15.42)
                      0 Station failures
               11249851 Initially deferred packets sent
                1651656 Single collision packets sent
                1803849 Multiple collision packets sent
                      9 Excessive collisions (26-FEB-2012 16:21:12.36)
                      0 Late collisions
                      0 Collision detect check failures
                      4 Link up transitions (26-FEB-2012 16:43:14.64)
                      3 Link down transitions (26-FEB-2012 16:43:13.02)
   26-FEB-2012 16:43:14 Time of last generic transmit error
                   None Time of last generic receive error