The lan2 (Core/Lasi/EISA 802.3), lan3 (HP-PB 802.3),
lan6 (HP-PB FDDI), and token2 (HP-PB 802.5) products have new
LAN cable disconnect functionality at 10.0, which enables the card and
driver to detect a cable-disconnect problem if NetTL logging is enabled
for the various products involved. When a possible cable
disconnect occurs, the driver enters a monitoring state. During
this state, the driver discards any further packets received
from any of the networking layers above -- LLA, DLPI, or
transport. The driver also sets Net_Interface to DOWN if it was UP
at the time the disconnect was detected. When the card and
driver detect that the writes onto the media are working (the
cable appears to be functioning), the driver changes state, resets
the Net_Interface to the state before the disconnection, and
begins to process reads and writes.
For additional information, refer to the Installing
and Administering LAN/9000 Software manual (98194-90057) and
the lanscan(1M) and
netstat(1) manpages.
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