Viavi OneExpert CATV 630, Extended Quick Start Manual

Page: 109 / 183

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DOCSIS Service Level Testing
DOCSIS 3.1 is backwards compatible – can utilize just 3.0 QAM carriers. Verify bonding with OFDM
carriers to ensure that high-tier data traffic is on more efficient OFDM carriers and is not impacting other
customers.
THINGS TO CHECK:
Bonding with OFDM, Upstream bonding and Throughput
 DOCSIS 3.1 systems can provide over 1 Gbps throughput

Validating operation at subscribed rates is important to verify customer
experience.
 Testing at DOCSIS physical layer identifies RF related impacts on
overall service performance.
 Testing both DOCSIS service and Ethernet helps ensure top customer
QoE.
 Consumer-grade PC HW limitations can prevent testing up to 1 Gbps.
 Testing both DOCSIS and Ethernet layer to 1 Gbps helps distinguish
 between service problems and equipment problems.