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 (part number
98194-90057) and the lanscan(1M)
and netstat(1)
manpages.
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