(With the continuous changes of SDN, nfv, sd-wan and other network technologies, Cisco has significantly upgraded CCIE certification. With the launch of CCIE RS certification on the historical stage, CCIE EI certification, as a new alternative certification, integrates more new network technologies, which is a necessary technology for network engineers to face transformation. Sd-wan manages the Wan in a soft defined way, enabling the centralized controller to optimize the multi cloud application experience and greatly simplify Wan operation. The new Cisco CCIE EI test outline covers the contents of sd-wan test site, which is also the key content of CCIE EI test.)
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