The Graveyard - Products No Longer Supported > DES-1252
One-way communication on port
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jameshaworth:
Hello,
We have several Linux servers connected to our D-Link DES-1252 switches.
Occasionally, we will find we cannot SSH or Ping to a server. The activity light on the port blinks as normal but we cannot reach it.
The solution is to change ports, which instantly restores connectivity.
I reset the statistics on the D-Link and this is what the statistics on the port look like when the problem occurs:
TX
OutOctets 0
OutUcastPkts 0
OutNUcastPkts 0
OutErrors 0
LateCollisions 0
ExcessiveCollisions 0
InternalMacTransmitErrors 0 RX
InOctets 466170
InUcastPkts 0
InNUcastPkts 7201
InDiscards 0
InErrors 0
FCSErrors 0
FrameTooLongs 0
InternalMacReceiveErrors 0
As you can see, nothing is being transmitted to the server.
Can anyone suggest why this may be happening?
Fatman:
duplex setting shown on the switch and server?
jameshaworth:
Duplex setting is Auto on the switch and forced at 100mbps on the Linux server.
Fatman:
If you lock down a full duplex setting on one side you must lock down a full duplex setting on the other side or you will get a duplex mismatch. If you can only lock down on one side, you must use half duplex. Try setting both sides to autonegotiate.
jameshaworth:
Ok, I'll give that a go.
Thanks.
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