VeEX MTX150 Series, User Manual

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Test Application
Phase 1: Service Configuration Test
The service configuration test is broken down into three steps. The steps are tested individually for all the ser-
vices delivered on the same line.
Step 1: Committed Information Rate (CIR) Test :
Traffic is transmitted at the CIR for a short period of time and the received traffic is evaluated against the Ser-
vice Acceptance Criteria (FLR, FTD, FDV) measured simultaneously. The CIR test passes if the meas-
urements on the received traffic stay below the performance objectives.
Step 2: Excess Information Rate (EIR) Test :
Traffic is transmitted at the CIR+EIR rate for a short period of time; the EIR test passes if the received traffic
rate is between the CIR (minus the margin allowed by the FLR) and CIR+EIR.
Step 3: Traffic Policing (Overshoot Test) :
The purpose of the Traffic Policing Test is to ensure that when transmitting at a rate higher than the allowed
CIR+EIR, the excess traffic will be appropriately blocked to avoid interference with other services. For this test,
traffic is transmitted at 25% higher than the CIR+EIR for a short period of time. The test passes if the received
traffic rate is at least at the CIR (minus the margin allowed by the FLR) but does not exceed the allowed
CIR+EIR.
At this time, the Committed Burst Size (CBS) and Excess Burst Size (EBS) tests are considered
experimental and not an integral part of the standard.