What is the industry’s first aggregation router to support network virtualization, allowing two routers
to operate as a single logical device?

A.
HP HSR 6800 Router Series

B.
HP 8800 Router Series

C.
HP MSR 2000 Router Series

D.
HP 6600 Router Series

Explanation:
http://h17007.www1.hp.com/us/en/networking/products/routers/HP_HSR6800_Router_
Series/index.aspx