Data connection quality analysis apparatus and methods

Details Data connection quality analysis apparatus and methods Data connection quality analysis apparatus and methods

2005-04-25

2009-02-10

Lee, Andrew (Department: 2616)

Multiplex communications

Diagnostic testing

Using oam cells

C370S248000, C370S392000

Reexamination Certificate

active

07489641

ABSTRACT:
A test device enables DOCSIS link testing in a HFC network without requiring the CMTS or other router at the headend of the HFC network to respond to ICMP messages. The test device includes a test packet generator for generating test packets having a destination Internet protocol (IP) address associated with a test device, a memory for storing transmission parameters of the test packets, and a test packet evaluator associated with the IP address in the generated test packets. The test packet evaluator receives the generated test packets after the test packets have been routed through a router at a head end of a HFC network and compares reception parameters for the received test packets to the transmission parameters stored in the memory.

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“Building a PacketCable™ Network: A Comprehensive Design for the Delivery of VoIP Services” by David McIntosh, SCTE Cable Tec-Expo® 2002.

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