APC-BLOCKED-RX
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
Logical Object: OTS Controller
The APC-BLOCKED-RX alarm is raised when:
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The APC domain (OLT—OLT) is down due to:
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Fiber cut in the receive (RX) direction of the span in the network.
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Network events such as: OTS controller fail or shutdown, OSC fail or shutdown, LC reload, RP reload, and power cycle events.
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The topology is not discovered by the OSPF end-to-end and the connection bring up is pending.
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The user configured amplifier safety conditions, such as Optical safety remote interlock (OSRI) and Automatic power reduction (APR), and so on.
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Safety condition is triggered due to a High Back Reflection event.
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The participating agent nodes have locally disabled the APC.
Clear the APC-BLOCKED-RX Alarm
This alarm gets cleared when:
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The fiber issues are resolved and the network connectivity is restored in the receive direction.
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All the participating nodes are recovered from High Availability (HA) events.
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The end-to-end topology is discovered using the show olc apc command.
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All the safety conditions are cleared from the network.
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Verify that all the agent nodes in the domain have APC enabled using the show olc apc-local command.
If the alarm does not clear, log into the Technical Support Website at http://www.cisco.com/c/en/us/support/index.html for more information or call Cisco TAC (1 800 553-2447).