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GPON OLT Network Test Content
Testing the GPON OLT ensures service quality, network performance, and compliance with ITU-T standards. These tests help validate provisioning, bandwidth allocation, and fault tolerance in FTTH deployments.
Test Categories
| Physical Layer Tests | Optical Power Levels |
Measure TX (OLT) and RX (ONT) power levels. Ensure levels are within ITU-T G.984.2 limits (TX: -1 to +4 dBm, RX: -13 to -27 dBm). |
| Optical Return Loss (ORL) | Ensure ORL > 32 dB to avoid signal reflections. | |
| OTDR Test |
Ensure ORL > 32 dB. Locate faults, splices, bends, and verify fiber integrity. |
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| GPON Protocol Layer Tests | OMCI (ONT Management and Control Interface) Verification | Confirm successful ONT provisioning and configuration. |
| PLOAM (Physical Layer OAM) Message Test | Verify message exchange between OLT and ONT. |
| Performance Tests | Throughput Test |
Use RFC 2544 or Y.1564 methodologies. Test upstream and downstream performance. |
| Latency and Jitter Test | Simulate VoIP/streaming traffic and measure delay and jitter using tools like IXIA or Spirent. | |
| Packet Loss | Measure under load (should be < 0.01% in normal conditions). | |
| Service Layer & SLA Verification | Triple Play Testing (Voice, Video, Data) | Emulate IPTV streams and VoIP calls alongside data. |
| VLAN and QoS Verification | Test multiple VLANs (per service) and priority queues. | |
| Multicast Testing | Validate IGMP snooping and PIM behaviour. |
| Reporting & Compliance Overview | |
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| Report Contents |
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| Standards Followed |
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