Cisco ASR 903 Router Design and Deployment Guide▄
Tracing the route to 7010.5c51.8fbf on Domain PE1-2, Level 6, service EVC-PE-200, evc
evc-200
Traceroute sent via Gi0/1/0:(10.10.3.3, 200), path found via MPDB
B = Intermediary Bridge
! = Target Destination
* = Per hop Timeout
--------------------------------------------------------------------------------
MAC Ingress Ingr Action Relay Action
Hops Host Forwarded Egress Egr Action Previous Hop
--------------------------------------------------------------------------------
B 1 7010.5c51.a4bf Gi0/1/0 IngOk RlyMPDB
Forwarded
! 2 7010.5c51.8fbf RlyHit:MEP
Not Forwarded 7010.5c51.a4bf
Y.1731 one way delay measurement, PE1 initiates the packets and PE2 receive the packets. To get the accurate
one way delay measurement, it is recommended that those devices are time synchronized through either PTP or
NTP, preferably PTP.
ASR903-PE2 Configuration
ip sla 100
ethernet y1731 delay receive 1DM domain PE1-2 evc evc-200 cos 0 mpid 1201
ip sla schedule 100 start-time pending ! start receive end first
ASR903-PE1 Configuration
ip sla 100
ethernet y1731 delay 1DM domain PE1-2 evc evc-200 mpid 1201 cos 0 source mpid 1200
aggregate interval 30
ip sla schedule 100 start-time now
Y.1731 two way delay measurement, here is an example to configure DMM on router PE1.
ASR903-PE1 Configuration
ip sla 110
ethernet y1731 delay DMM domain PE1-2 evc evc-200 mpid 1201 cos 0 source mpid 1200
aggregate interval 30
ip sla schedule 110 life forever start-time now
ASR903-PE1# show ip sla statistics 110 (detail)
IPSLAs Latest Operation Statistics
IPSLA operation id: 110
Delay Statistics for Y1731 Operation 110
Type of operation: Y1731 Delay Measurement
Latest operation start time: *02:24:08.354 UTC Sat Aug 10 2013
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