Which option for the connections between the data centers provides the best resiliency and stability?

Table of Acronyms


A company has a data center that hosts multiple tenants. The company is adding a second and third data center switch.
These are the IRF connections:
IRF 1 is the core of the first data center.
IRF 2 is the core of the second data center.
IRF 3 is the core of the third data center
The three data centers are fully interconnected with dark fiber. IRF 1, IRF 2, and IRF 3 have connections to a WAN and to the Internet.
Which option for the connections between the data centers provides the best resiliency and stability?
A. SPBM configured across IRF 1, IRF 2, and IRF 3
B. MSTP running on the links
C. IRF 1, IRF 2, and IRF 3 combined into a single IRF virtual device
D. A link aggregation that consists of all of the links

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