Testing Locally-Created Services

Services that have been created locally on the unit can be included in a Y.1564 or RFC-2544 test by enabling an internal loopback on one of the unit’s UNI ports to redirect the test traffic through the traffic policies.

A test where an internal loopback is enabled on both UNI ports (i.e. near-end and far-end), thus enabling services to be tested from end to end as in illustration.

UNI-to-UNI (End-to-End) Testing

The traffic in this end-to-end test moves seamlessly between the two units:

• The test traffic is generated toward the local UNI port on Unit 1.
• The internal loopback on Unit 1 redirects the traffic to the policies stage, then toward the NNI port.
• The test traffic enters Unit 2 and goes through the policies before reaching the UNI port.
• Another internal loopback is used on Unit 2's UNI port to loop the traffic and send it back to Unit 1.
• In both units, the traffic goes to the policing stages for the ingress direction as well as for the egress direction.

The units can also be configured to perform UNI-to-NNI testing, as well as NNI-to-UNI testing, as shown in illustration.

UNI-to-NNI Testing

NNI-to-UNI Testing

To enable an internal loopback, access the Port Configuration menu. For details, see "Setting Up Ports".