(With the continuous transformation of network technologies such as SDN, NFV, and SD-WAN, Cisco has made a major upgrade to CCIE certification. With CCIE RS certification on the stage of history, CCIE EI certification, as a new alternative certification, incorporates more new network technologies and is a necessary technology for network engineers to transform. SD-WAN manages the WAN in a soft-defined manner, and the centralized controller optimizes the multi-cloud application experience, greatly simplifying the operation and maintenance of the WAN. The syllabus of Cisco's new CCIE EI covers the SD-WAN exam content, which is also the key content of the CCIE EI exam.)
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