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

A company has a data center that hosts multiple tenants. The company is adding a second and third data center. The core of each data center is an IRF virtual 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 . a link aggregation that consists of all of the links
B . MSTP running on the links
C . IRF 1, IRF 2, and IRF 3 combined into a single IRF virtual device
D . SPBM configured across IRF 1, IRF 2, and IRF 3

View Answer

Answer: C

Explanation:

IRF technology extends network control over multiple active switches. Management of a group of IRFenabled switches is consolidated around a single management IP address, which vastly simplifies network configuration and operations. You can combine as many as nine HP A-series switches to create an ultra-resilient virtual switching fabric comprising hundreds or even thousands of 1-GbE or 10-GbE switch ports.

References: Reducing network complexity, boosting performance with HP IRF technology, White Paper, page 3 http://h17007.www1.hp.com/docs/reports/irf.pdf