Problem Solving (continued)
If ...
Then ... | ...Do This |
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DEChub 900 MultiSwitch ONLY
Lobe, Ring In, Ring Out, Ring A/B LEDs flash together.
MAU does not connect to hub.
MAU does not work in DEChub 90.
Network management has disabled MAU.
Network management will not connect MAU to hub.
DEChub 90 only supports Ethernet networks.
To change settings, you can use network management commands or the MAU's Reset switch.
Check speed and hub settings for incorrect network management overrides.
A DEChub 900 MultiSwitch supports Token Ring networks.
DEChub ONE ONLY
Ring In or Ring Out LED indicates a continuous single flash pattern.
Ring In or Ring Out LED indicates a continuous double flash pattern.
Lobe, Ring In and Ring Out LEDs flash together.
Vendor's MAU or repeater causes loopback on ring.
Network crashes when a MAU or repeater fails.
Network management disconnected the MAU's RI or RO port.
MAU and ring have different speed settings.
Network management has disabled MAU.
Vendor's unit is incompatible with Digital's Autowrap.
Vendor's unit does not have Digital's Autowrap.
To change setting, you can use network management commands or the MAU's Reset switch.
Change the speed setting of the stations or the ring.
To change settings, you can use network management commands or the MAU's Reset switch.
Set Autowrap switches on the DECmau or DECrepeater adjacent to the vendor's unit to 0.
Set Autowrap switches on the DECmau or DECrepeater adjacent to the failed unit to 1.
14 | DECmau 900TL |