(Data Core High Availability Network System Design; High Availability Data Core Network Design Ideas; Data Core Network Architecture High Availability Design; Hierarchical Design; Device Layer High Availability Design; Link Layer (L2) High Availability Design; Protocol Layer (L3) High Availability Design Availability design; use layer (L4~L7) high availability design; this solution considers the whole system carefully, and will partially help network planners. Clarify ideas, distinguish levels. Data concentration means concentration of risk, concentration of response, concentration of complexity, concentration of investment... High availability design and deployment is an eternal topic of enterprise data core construction. "Don't build high platforms on floating sand", as the network is the basic IT platform for data cores, it is the basic guarantee for the high availability of IT systems. In order to achieve high availability of the data core network, technology cannot solve all problems, and it also needs the cooperation of perfect operation and maintenance processes, rules and regulations, and management systems. Combining with the development trend of enterprise business, continuous summarization and accumulation is a long-term, step-by-step process.)
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