Loop guard and UniDirectional Link Detection both protect against Layer 2 STP loops. In which two ways does loop guard differ from UDLD in loop detection and prevention?()
Loop guard and UniDirectional Link Detection both protect against Layer 2 STP loops. In which two ways does loop guard differ from UDLD in loop detection and prevention? ()
单向横列式编组站 unidirectional transveral type marshalling station
单向混合式编组站 unidirectional combined type marshalling station
单向纵列式编组站 unidirectional longitudinal type marshalling station