IBM 3745 Problem Determination Manual page 321

Ethernet-Type Line Problems (ESS)
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Based on the information displayed on the screen, take the appropriate action.
EXCESS COLLISION (XMIT)
Is incremented when a frame cannot be transmitted after 16 tries
because of collisions on the medium. Associated with the EXCESS
COLLISION is a TIME DOMAIN REFLECT counter value. This value is
related to the last EXCESS COLLISION lost transmit frame.
Suspect the cable, the transceiver or a
~edia
problem.
LATE COLLISION (XMIT)
A late collision error occurs when a transmit frame is lost because of a
collision takes place after the maximum time required to detect a
collision. .
Suspect a too long media length or an open/short media.
NO BUFFER AVAILABLE (RCV)
This error occurs when the adapter is unable to receive a frame
because its buffers are filled.
Suspect a NCP congestion or a hardware failure.
CRe ERROR (ReV)
A CRC error occurs when a receive frame is discarded because of a
problem detected with the cyclic redundancy check.
Suspect line hits, media or transceiver problems.
FRAMING ERROR (ReV)
. A framing error occurs when a received frame does not end on a byte
boundary.
Suspect line hits, media or transceiver problems.
FRAME> 1518 BYTES (RCV)
This error occurs when a receive frame is longer than the maximum
allowed frame size ·for the media.
Suspect any other terminal, transceiver or Ethernet adapter card.
If you are not successful, go to the next step.
If another port or another ESS line adapter is available, perform
a
MOSS PSF
function (port swap file function). Refer to the 3745 Advanced Operations Guide.
• If the problem is corrected, suspect the original connector or the .original
Ethernet adapter card.
Continue normal operation and
CO
to have the failing component changed or
repaired.
• If you are not successfu I, call Ethernet support.
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IBM 3745 Communication Controller: Problem Determination Guide
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