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Chapter 2 Getting Started the BHT and System Menu
Ping Echo Request Send Timing
Two types of echo request send timings are available: Type 1 and Type 2. The default is Type 2.
• Type1
After sending an echo request, Ping will wait for the period specified by Interval and then send an echo
request again.
For Type 1, the relationship between the Interval and Timeout should be "Interval ≥ Timeout."
Sends an echo request
Receives an echo reply
Timeout period
Interval
Sends an echo request
• Type2
After sending an echo request, Ping will wait for an echo reply to be received or for timeout to occur. After
that, Ping will wait for the period specified by Interval and then send an echo request again. For Type 2,
no relationship between the Interval and Timeout is required.
If Ping receives an echo reply:
Sends an echo request
Receives an echo reply
Sends an echo request
Interval
If timeout occurs:
Sends an echo request
Timeout period
Timeout occurs
Sends an echo re
q
uest
Interval
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