You need to plan the MS when gold services exist on an ASON network. Which of the following are true about MS planning?
A. If only a few gold services exist, upgrade the gold services to diamond services.
B. The MS should cover all nodes on which gold services are required to be configured. Multiple MSs can be used to cover more nodes on a complex network.
C. If the gold services take up less than half of the optical path resources, set part of the MS for the gold services, in other words, only part of the VC-4 resources on the MS are allocated for the gold services.
D. Services should be evenly distributed in an MS. Avoid high bandwidth utilization in certain portion of an MS but low bandwidth utilization in other portion of the MS.