单选题Why would an administrator change the value of the spanning-tree priority of a switch?（）Ain order to optimize the path that frames take from source to destinationBto increase the priority so a designated port will become a root portCto increase the BID, so the switch is more likely to become root bridgeDin order to allow VLANs to be sent from one switch to another across a single linkEto force a given switch to become an STP server
单选题
Why would an administrator change the value of the spanning-tree priority of a switch?（）
A
in order to optimize the path that frames take from source to destination
B
to increase the priority so a designated port will become a root port
C
to increase the BID, so the switch is more likely to become root bridge
D
in order to allow VLANs to be sent from one switch to another across a single link
E
to force a given switch to become an STP server
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