-Follow Hierarchical layered design architecture and Modular-Network performance: serve the transmission of information and applications inside the network, avoiding any congestion phenomena occurring on the network, slow response time, or resource usage level of networking equipment. -Computer network design: with Module on the base module turns the components in the network will ensure separation of complex network systems into smaller components, ensuring easy, convenient in operation, management and maintenance as well as the ability to isolate the problem. -Availability and reliability: ensuring stability and reliability is also a much needed goals in network design. Data Center network designs need to ensure high availability for single point of failure, avoiding online with:+ Possibility of redundancy for critical equipment such as Core switches, Core routers..., the device's components such as central processor, communication modules, service modules and. ..+ Ability to backup for the physical connection between the device+ Availability and reliability through the protocols OSPF, HSRP, STP and. ..-Scalable: TTDL network design must be able to expand the scope and upgrade new services easily without changing the architecture. -Administrative capability: TTDL network design should ensure the ability to manage focus, simply and easily, supports a quick way to identify, isolate and fix the problem.-Satisfy the needs of your applications and services
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