Troubleshooting guide

MX2820 System Manual
5-28 61186003L1-1D
Multiplexer State
Alarm
This field displays the current alarm condition for the Multiplexer State. Table 5-13 lists the
possible alarm conditions.
Protection
This field indicates the current protection mode for the STS-1 MUX module. Table 5-14
provides the possible state conditions.
RFI-P Remote Failure Indication
- Path
The unit is receiving a line remote failure indication
(RFI-P is declared when the incoming path remote defect
indication [RDI-P, “1” in bit 5 of the G1 path overhead
byte for contiguous frames] lasts for 2.5 ±0.5 seconds.
TIM-P Trace Identifier Mismatch -
Path
A received signal label is mismatched if it does not equal
the locally provisioned expected value.
UEQ-P Unequipped - Path The path is unequipped if it is not provisioned (Byte C2
of the STS path overhead is set to zero).
Table 5-13. STS-1 MUX Alarm Conditions
Alarm (Condition) Description
None No multiplexer state alarms.
Excessive Switches This condition indicates the maximum switching threshold has been
exceeded.
Switched to Protect This condition indicates a module switch has occurred.
Table 5-14. STS-1 MUX Protection Modes
Mode Description
Circuit The unit is in Circuit Protection mode and everything is functioning.
None One STS-1 MUX module is installed, or the unit is in Circuit Protec-
tion mode, and the secondary module has failed.
Table 5-12. STS-1 Alarm Condition Descriptions (Continued)
STS-1 Alarm Definition Condition Description