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Cisco 3900 Series, Cisco 2900 Series, and Cisco 1900 Series Integrated Services Routers Generation 2 Software Configuration Guide
Chapter  Configuring Ethernet CFM and Y.1731 Performance Monitoring on Layer 3 Interfaces
Support for Y.1731 Performance Monitoring on a Routed Port (L3 Subinterface)
• show ethernet cfm pm session db session-id
The following are the sample outputs of the commands listed above:
Router#show run | sec ip sla
ip sla auto discovery
ip sla 1101
 ethernet y1731 delay DMM domain customer vlan 100 inner-vlan 1101 mpid 3101 cos
 1 source mpid 4101
ip sla schedule 1101 life forever start-time now
Router#show ip sla summary
IPSLAs Latest Operation Summary
Codes: * active, ^ inactive, ~ pending
ID           Type        Destination       Stats       Return      Last
                                           (ms)        Code        Run 
-----------------------------------------------------------------------
*1101        y1731-delay Domain:customer V -           OK          27 seconds ag
                         lan:100 CVlan:110                         o            
                         1 Mpid:3101                                            
Router#show ip sla statistics 
IPSLAs Latest Operation Statistics
IPSLA operation id: 1101
Delay Statistics for Y1731 Operation 1101
Type of operation: Y1731 Delay Measurement
Latest operation start time: *10:43:12.930 UTC Mon Oct 21 2013
Latest operation return code: OK
Distribution Statistics:
Interval
 Start time:  *10:43:12.930 UTC Mon Oct 21 2013
 Elapsed time: 15 seconds
 Number of measurements initiated: 7
 Number of measurements completed: 7
 Flag: OK
Router#show ip sla configuration 1101
IP SLAs Infrastructure Engine-III
Entry number: 1101
Owner: 
Tag: 
Operation timeout (milliseconds): 5000
Ethernet Y1731 Delay Operation
Frame Type: DMM
Domain: customer
Vlan: 100
CVlan: 1101
Target Mpid: 3101
Source Mpid: 4101
CoS: 1
   Max Delay: 5000
   Request size (Padding portion): 64
   Frame Interval: 1000
   Clock: Not In Sync
Threshold (milliseconds): 5000
Schedule:
   Operation frequency (seconds): 30  (not considered if randomly scheduled)
   Next Scheduled Start Time: Start Time already passed
   Group Scheduled : FALSE
   Randomly Scheduled : FALSE
   Life (seconds): Forever
   Entry Ageout (seconds): never