Which technology simplifies network management by combining multiple physical devices into a
single virtual switch?

A.
Transparent Interconnection of Lot of Links (TRILL)

B.
Ethernet Virtual Bridging (EVB)

C.
HP Virtual Connect Enterprise Manager (VCEM)

D.
Intelligent Resilient Fabric (IRF)

Explanation:
http://www.h3C. com/portal/download.do?id=854583(page 1)