HP 5820X Switch Configuration Manual page 18

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<DeviceA>
The output shows that Device A and Device C cannot reach other, Device A and Device B can reach each
other, and an error occurred on the connection between Device B and Device C. Use the debugging ip
icmp command to enable ICMP debugging on Device A and Device C to check whether the devices send
or receive the specified ICMP packets, or use the display ip routing-table command to display whether
Device A and Device C can reach each other.
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