This document explains the Invalid Rx Port
Errs slot error, which is displayed when you use the
There are no specific requirements for this document.
This document is not restricted to specific software and hardware
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Technical Tips Conventions.
The backplane interface has a register that controls which ports are
active on the card. If a BFrame is received that has the correct slot ID and
parity, then the port field is checked against this register to see if that
port is active. This count is incremented if the port is not active.
Usually, these errors are seen with other errors, like RX BIP-16 errors
and, in these cases, the Invalid Port errors are not significant. If no other
errors are present at the same time, it is most likely an indication of a
configuration problem either on the card reporting the errors or the card that
is generating the data.
The source card is the most likely culprit. To isolate the card sending
the data, determine which other cards have connections through the card
reporting the error. This source card can then be reset using the
resetcd slot h command to
force software to reload its configuration data.
If this fails, the source card should be replaced. If the errors
persist after replacing the source card, the card reporting the error should be