Otdr-Scan-Not-Completed - Cisco NCS 2000 series Troubleshooting Manual

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OTDR-SCAN-NOT-COMPLETED

A scan is initiated on a node which is running a release that does not support new scan initiated alarms
(reporting, scan type and direction) and full duplex scan (scan started on both nodes).
If communication between the two nodes is available, then the alarm is also raised on remote node (even if
the node is running a newer release, supporting new OTDR scan in progress alarms).
The condition is cleared automatically when the OTDR scan is completed (either successfully or by
timeout/error). When the scan successfully completes, a graph is obtained in the CTC and OSC links gets
re-established. This transient condition does not result in a standing condition.
OTDR-SCAN-NOT-COMPLETED
Default Severity: Minor (MN)
Logical Object: EQUIPMENT
The OTDR-SCAN-NOT-COMPLETED alarm is raised when the scan has not been executed on the span in
the TX direction.
Clear the OTDR-SCAN-NOT-COMPLETED Alarm
Step 1
Execute a manual OTDR scan over the port or direction where the alarm has been raised.
Step 2
Alternatively, stop the scan by navigating to: Maintenance->DWDM->OTDR; select the side where the scan is ongoing
and click Cancel. The scan is stopped on both the sides.
If the alarm does not clear, log into the Technical Support Website at
for more information or call Cisco TAC (1 800 553-2447).
OTUK-AIS
Default Severity: Not Reported (NR), Non-Service-Affecting (NSA)
Logical Object: TRUNK
The Optical Transport Unit (OTUK) AIS condition applies to TXP_MR_10G, TXP_MR_2.5G,
TXPP_MR_2.5G, TXP_MR_10E, TXP_MR_10E_C, TXP_MR_10E_L, MXP_2.5G_10G, MXP_2.5G_10E,
AR_MXP, AR_XP, AR_XPE, ADM-10G, and OTU2_XP cards when ITU-T G.709 encapsulation is enabled
for the cards. OTUk-AIS is a generic AIS signal with a repeating AIS PN-11 sequence. This pattern is inserted
by the card in the ITU-T G.709 frame (Trunk) when a faulty condition is present on the client side.
The detection of an OTUK-AIS on the RX-Trunk port of a near-end TXP or MXP is a secondary condition
that indicates a more serious issue occurring on the far-end TXP/MXP card connected upstream, most likely
on the client side. OTUK-AIS is reported in the optical transport unit overhead of the digital wrapper.
ITU-T G.709 encapsulation refers to a digital data wrapper that is transparent across networking standards
such as SONET and protocols (such as Ethernet or IP).
Cisco NCS 2000 series Troubleshooting Guide, Release 11.0
340
http://www.cisco.com/c/en/us/support/index.html
Alarm Troubleshooting

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