TDR cable-diagnostic status is Open.

[JustTakeTheFirstStep]

I am experiencing network difficulties.

Therefore, I am curious if the TDR cable diagnosis status is normal.

The connected device is ATA.

Some ATAs operate at 10M half-duplex.

Who can help me?

[Leo Laohoo · Accepted solution]

The output is from a Catalyst 4k/6k? 

NOTE: 

1. ATA only support two pairs. 
2. Catalyst 4k/6k have different "interpretation" of the TDR result.  "Terminated" is "OK".  "Open" or "Short" are bad output you want to avoid. 

Gi 7/36:  If this is an ATA, it is GOOD.  

Gi 7/36:  First fair is faulty (Open).  Fault is about 5 metres away from the switch. 

Gi 7/38:  WTF is that output!

Gi 7/41:  WTF is that output!

[JustTakeTheFirstStep]

Do you think there is a cable issues in Gi 7/38, 41?

[Leo Laohoo]

What IOS version and what is the uptime of the switch?

[JustTakeTheFirstStep]

WS-C4507R+E

Version 03.04.04.SG RELEASE SOFTWARE (fc2)

[Leo Laohoo]

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@JustTakeTheFirstStep wrote:

Version 03.04.04.SG RELEASE SOFTWARE (fc2)

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I have used this exact IOS-XE version on a Sup7E and all I can say is this:  Using TDR on a firmware like this can be, putting it mildly, "frustrating".  

I would recommend upgrading the firmware to a more recent version.