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Path RDI (Path Remote Defect Indication)
Path remote reception failure information. Indicates detection of path reception failure in unit of transmission destination
(downstream). µPD98413 supports two modes of One-bit RDI and Enhanced RDI. This mode can be selected by the
PRDIM bit of the MDPOHR register.
One-bit Path RDI
Detection: If frames with bit 5 of G1 byte being "1" are received n times continuously
Termination:
If frames with bit 5 of G1 byte being "0" are received n times continuously
* n = 3, 5, or 10. This can be selected by using the PRDIDT[1:0] bits of the MDPOHR register. In the default mode, n=10.
Enhanced Path RDI
Detection: If frames with bit 5 to 7 of G1 byte being the following values are received n times continuously
"010" : ERDI-P Payload defect
"101", "100" and "111" : ERDI-P Server defect
"110" : ERDI-P Connectivity defect
Termination:
If frames with bit 5 to 7 of G1 byte being the following values are received n times continuously
ERDI-P Payload termination : The values other than "010"
ERDI-P Server termination : The values other than "101", "100" and "111"
ERDI-P Connectivity termination : The values other than "110"
* n = 3, 5, or 10. This can be selected by using the PRDIDT[1:0] bits of the MDPOHR register. In the default mode, n=10.
Path PLM (Path Payload Label Mismatch)
Path payload label mismatch.
Detection: See Section 3.4.4.
Termination:
See Section 3.4.4.
Path UNEQ (Path Unequipped)
Path unequipped.
Detection: See Section 3.4.4.
Termination:
See Section 3.4.4.
Path PLU (Path Payload Label Unstable)
Path payload label unstable.
Detection: See Section 3.4.4.
Termination:
See Section 3.4.4.
Path TIM (Path Trace Identifier Mismatch)
Path trace identifier mismatch.
Detection: See Section 3.6.
Termination:
See Section 3.6.
Path TIU (Path Trace Identifier Unstable)
Path trace identifier unstable.
Detection: See Section 3.6.
Termination:
See Section 3.6.
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CHAPTER 3 FUNCTIONAL OUTLINE
Table 3-14. Alarms and Failures (3/4)
PRELIMINARY
NEC confidential and Proprietary
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