You plan to use vPC+ in a FabricPath topology. What are two characteristics of a vPC+ switch ID? (Choose two.)
A. must be set to 255
B. must be set manually
C. can be reused in the FabricPath topology
D. must be the same on each vPC+ peer
E. must be different on each vPC+ peer
https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/fabricpath/513_n1_1/N5K_FabricPath_Configuration_Guide/fp_n5k_interfaces.html
Quote 1: Each vPC+ has its own virtual switch ID.
Quote 2: (Optional) Configure a vPC+ switch ID.
Each vpc+ peer must have the same virtual switch ID inside the same VPC+ domain. when talking about the whole domain it is when applies quote1 (each vpc+ has its own virtual switch ID) so it should be BD
The vPC+ virtual switch ID is used to assign the FabricPath Outer Source Address (OSA) to the FabricPath vPC+ peer devices (see “Configuring FabricPath Switching,” for information about FabricPath encapsulation). You must assign the same switch ID to each of the two vPC+ peer devices so the peer link can form.