Chapter 9 Measure Mode – Service Tab
Ethernet
228 DSAM Help User Guide Rev. 001
Throughput Graphs
The DOCSIS Throughput screen displays an upstream graph and a
downstream graph. The height of the gray bars represents the
throughput number displayed in a numerical value beside each bar.
Both the graphs and numerical values are continuously updated.
Displaying Packet
Loss Results
The Packet Loss test displays round trip (upstream and downstream)
packet loss test results. Data is captured and continuously updated.
To display Packet Loss results
1 Press the View softkey.
2 Using the arrow keys, select Packet Loss.
3 Press ENTER.
Running Ping
Results
Ping results verify the overall downstream/upstream communication
route and connectivity of a DSAM within the cable system. The Ping
Test screen enables you to select the IP address, packet size, and
time between pings. It also displays ping result data, including:
– Round trip time
– Time-to-live (TTL)
– Packets sent and lost
– Average round trip time
– Loss to sent ratio
To run a ping test
Figure 204 Measure Mode – Packet Loss Test
Packet Loss
21128026 R001 DSAM Help User Guide.book Page 228 Thursday, February 5, 2009 2:02 PM
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