HP MSR2000/3000/4000 Router Series Layer 2 - LAN Switching Configuration Guide

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No loopback is detected.
The output shows that the device has removed the loops from Ethernet 2/1 and Ethernet 2/2 according
to the shutdown action.
# Display the status of Ethernet 2/1 on Router A.
[RouterA] display interface ethernet 2/1
Ethernet2/1 current state: DOWN (Loop detection down)
...
# Display the status of Ethernet 2/2 on Router A.
[RouterA] display interface ethernet 2/2
Ethernet2/2 current state: DOWN (Loop detection down)
...
The output shows that Ethernet 2/1 and Ethernet 2/2 are already shut down by the loop detection
module.