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(Wikipedia).
WRES
WRED is an acronym for W
eighted Random Early Detection. It is an active queue management mechanism that provides
preferential treatment of higher priority frames when traffic builds up within a queue. A frame's DP level is used as input to
WRED. A higher DP level assigned to a frame results in a higher probability that the frame is dropped during times of
congestion.
WTR
WTR is an acronym for W
ait To Restore. This is the time a fail on a resource has to be 'not active' before restoration back
to this (previously failing) resource is done.