Which of the following about the SSM protocol are true?
Select all that apply.
A
After the SSM protocol is disabled, the clock network can be unidirectional but cannot adopt a ring
B
topology.
C
After the standard SSM protocol is enabled, the clock network can be bidirectional but cannot adopt a ring topology.
D
After the extended SSM protocol is enabled, the clock network can be bidirectional and adopt a ring topology, which can be intersecting or tangent with other networks.
E
The SSM protocol has little to do with clock networks.