Instruction manual

Troubleshooting
893-00992-A 4-5
If the connected station uses a form of autonegotiation that is not compatible to
the IEEE 802.3u autonegotiating standard, the connected stations cannot negotiate
a compatible mode suitable for correct operation. In this situation, the BayStack
350T switch autosenses the speed of the connected port and, by default, reverts to
half-duplex mode. If the connected station is operating in full-duplex mode, the
stations cannot communicate.
To correct this type of “mode mismatch” problem, follow these steps:
1. Use the BayStack 350T switch Port Configuration screen to disable
autonegotiation for the suspect port (see “
Port Configuration” in
Chapter
3, “Using the Console Interface”).
2. Set the Speed/Duplex field (see Table 3-7 in Chapter 3, “Using the
Console Interface”) to manually match the speed/mode of the connected
station.
You may have to try several settings until you find the correct speed/mode of
the connected station.
BOOK.MKR Page 5 Tuesday, March 4, 1997 7:24 PM