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IP SLA - ASR 901 y.1731 measurements not completing

jwimb10
Level 1
Level 1

 

Hello, 

 

I am seeing an issue in which my SLA operation's return code is OK, but I'm unable to obtain any measurements.  When issuing a 'show ip sla stat [op #] detail', I see measurements being initiated as expected, but none are completing:

 

hostname#sh ip sla stat 1000 det
IPSLAs Latest Operation Statistics

IPSLA operation id: 1000
Delay Statistics for Y1731 Operation 1000
Type of operation: Y1731 Delay Measurement
Latest operation start time: 18:20:36.608 EDT Thu Aug 30 2018
Latest operation return code: OK
Distribution Statistics:


Interval
Start time: 18:20:36.608 EDT Thu Aug 30 2018
Elapsed time: 23 seconds
Number of measurements initiated: 17
Number of measurements completed: 0
Flag: OK


Delay:
Number of TwoWay observations: 0
Min/Avg/Max TwoWay: 0/0/0 (microsec)
Time of occurrence TwoWay: 
Min - 19:00:00.000 EST Thu Dec 31 1899
Max - 19:00:00.000 EST Thu Dec 31 1899

 

SLA config:

ip sla 1000
ethernet y1731 delay DMM domain test_domain vlan 100 mpid 10 cos 0 source mpid 9
history interval 5
aggregate interval 60
ip sla schedule 1000 life forever start-time now

 

I am able to see and ping my remote MEP, so the issue seems specific to the SLA operation.  Additionally, I have a frame loss SLA operation using this MEP pair and it completes measurements as expected, along the same path. 

 

Some additional configuration info:  I have the handoff port and uplink in the same bridge domain, utilizing service instances.  The MEP is configured in the 'up' direction on the handoff port.  I have other SLA operations using the same config on this device and they are working fine.  

 

Model: A901-12C-F-D

SW Version: 15.5(3)S6b

 

Any suggestions on troubleshooting why these measurements would not be completing?  Thanks!

 

 

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