WhyisanSTM-12F-MS-SPRingNOTfeasible?()
A.Anequalamountofworkingandprotectbandwidthisrequired.
B.DCCbandwidthisnotlargeenoughtohandleK1/K2processing.
C.Switchtimeswouldexceed50msforanSTM-1MS-SPRingring.
D.ThereisnotenoughbandwidthinanSTM-1ringtojustifyMS-SPRingprotection.