单项选择题
A. SNCP rings
B. MS-SPRing rings
C. 1:N protection on all core circuits
D. dual-ring interconnect with MS-SPRing rings
单项选择题 A customer has 2 E1s to add between far-end nodes in an SNCP ring. What type of circuit should you recommend? ()
单项选择题 WhatisthecorrectrelativeswitchingpriorityinanMS-SPRingring(highertolower)?()
单项选择题 WhatprotocolenablesEthernetoverSONET/SDHencapsulationinteroperabilitybetweentheG-seriesandML-seriesEthernetcards?()