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Cisco ONS 15454 Troubleshooting Guide, R8.5
November 2009
Chapter 2 Alarm Troubleshooting
2.7.351 RPR-SD
SONET Logical Object: RPRIF
The IEEE 802.17b-based RPR RI Fail condition is raised by an ML card in primary or secondary mode.
If a card is in primary mode, a Gigabit Ethernet interface can cause an interconnect interface (IC) failure.
(The IC includes the Gigabit Ethernet interface and possibly a port channel interface.) In primary mode,
RPR-RI-FAIL can also be raised in response to a downed ring interface. In secondary mode, the only
possible cause of this condition is IC failure.
The alarm clears when the IEEE 802.17b-based RPR interface returns to Init modes and faults, if present,
are cleared. RPR-RI-FAIL is suppressed by the “RPR-PASSTHR” alarm on page 2-209.
Clear the RPR-RI-FAIL Condition
Step 1 If the card is in primary mode, enter the following command at the CLI in privileged executive mode:
router# show interface rpr-ieee 0
Step 2 The RI information line displays the name of the monitored interfaces and says either “monitoring ring
interface,” or “monitoring interconnect interface.”
Step 3 Determine why the monitored interface is down. It can occur because the ring interface has been shut
down using the “shutdown” CLI command, or because both SONET circuits are down or OOS.
Step 4 If correcting the previous problem on a primary interface does not clear the condition, or if the condition
is raised on a card is secondary mode, the IC failure root cause must be corrected. This can be due to a
fiber pull, having link protocol down, or shut down interfaces.
• Link state is indicated in the “show interface rpr-ieee 0” output on the following line:
RPR-IEEE0 is up, line protocol is up
• A shutdown is indicated if a node is in pass-through mode. The same command output indicates
whether or not this is the case:
MAC passthrough not set
Step 5 If the condition does not clear, log into the Technical Support Website at
http://www.cisco.com/techsupport for more information or call Cisco TAC (1 800 553-2447).
2.7.351 RPR-SD
Default Severity: Not Alarmed (NA), Non-Service-Affecting (NSA)
SONET Logical Objects: ML100T, ML1000, MLFX
The IEEE 802.17b-based RPR Signal Degrade condition indicates that a minor signal degradation has
occurred on an IEEE- RPR ring that, if not overridden, can deactivate the link.The RPR-SD condition is
reported if the SONET “SD-P” alarm on page 2-220, is raised on the circuit which carries the span. The
RPR-SD condition clears when the SONET signal degrade clears.
RPR-SD suppresses the “MAN-REQ” alarm on page 2-178 and the “WTR” alarm on page 2-258.
It is suppressed by the following alarms:
• FORCED-REQ, page 112
• RPR-PASSTHR, page 209
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