Refer to the exhibit. Which two actions recover the UDLD error-disabled port? (Choose two.)
A. Shut down and restart the error-disabled interface
B. Disable aggressive mode
C. Remove and reinsert the network media
D. Enable errdisable recovery
E. Enter the udld reset command in privileged exec mode
Surely, E. And more probably, A.
a and d, Dom Rod’s link is about resetting udld, not recovering from errdisable.
a&d
not to restart the device it means shutdown and no shutdown on the port
disable UDLD command will work on global configuration mode only
A is wrong because the term restart is not the same sa no shut. Not shut down is just turning on the port and not restart.
The answer should be D & E.
D. Enable errdisable recovery
E. Enter the udld reset command in privileged exec mode
To reset all the ports that are shut down by the Unidirectional Link Detection (UDLD) protocol and permit traffic to begin passing through them again (although other features, such as spanning tree, Port Aggregation Protocol [PAgP], and Dynamic Trunking Protocol [DTP], will behave normally if enabled), use the udld reset command, in privileged EXEC mode.
https://www.cisco.com/c/en/us/td/docs/ios/lanswitch/command/reference/lsw_book/lsw_u1.html#wp1041925