CANOGA PERKINS 9145E NID Software Version 4.10 - Manual (Page 117)

Diagnostics 9145E NID Software User’s Manual
Service Activation Testing
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4.9 Service Activation Testing
Service Activation Testing (SAT) is an out-of-service test methodology used to assess proper
configuration and performance of an Ethernet Service. A service provider performs SAT tests on
a new Ethernet Virtual Connection (EVC) before using it for live customer traffic. Based on the
result (FAIL/PASS), you can decide whether the EVC is ready or requires further troubleshooting.
There are two parts to a Service Activation Test:
• Service Configuration Test This test validates whether or not the Ethernet Services is
configured properly. It only takes a short time to complete this test; typically between 5
and 15 minutes.
• Service Performance Test This test validates the quality of the Ethernet Services by
soaking them with synthetic traffic. This test can take anywhere from several hours to
several days to complete.
The SAT is used to prove that the newly configured Ethernet service (EVC) is properly configured
and is meeting the performance objectives for FD, IFDV and FLR for the service before handing
over the service to the Subscriber. The results of the SAT can be viewed as a report generated
by the NID or optionally through CanogaView EMS.
Up to four EVCs can undergo a SAT simultaneously. Note that while we say the SAT is an “out-
of-service” test, this means that the particular EVCs undergoing the SAT are not “in-service”,
however, all other EVCs at the UNI continue to be “in-service” for the Subscriber and are passing
customer traffic. The NID accomplishes this by interleaving SAT traffic with the Subscriber's
traffic from other EVCs in a manner that does not disturb the performance of the Subscriber's
traffic.
Figure 4-57 One-Way and Two-Way SAT Traffic
Figure 4-57 shows a typical application for SAT. Let us say that there is an Ethernet Virtual
Private Line (EVPL) service between the two customer locations shown. The Service Provider
has deployed a NID at each UNI. One day, the customer calls the Service Provider to add
additional EVCs. SAT can be used by the Service Provider to ensure the additional EVCs have
been configured correctly from end-to-end across the Carrier Ethernet Network. When the SAT
is initiated between the two NIDs, the NIDs will generate two types of SAT traffic for the test:
One-Way
SAT Traffic This type of traffic is generated by the local NID and terminated by the remote
NID. This traffic is unidirectional and can be used to test connectivity, EVC
attributes, EVC per UNI attributes and UNI attributes, but cannot be used for FD
or IFDV measurements.