644-068 – Advanced Routing and Switching for Field Engineers – ARSFE

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  The main services of the access layer include physical connectivity to endpoints, automatic endpoint discovery, and port-based security features.

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  Due to the high number of ports, performance is one of the key features that is required at the access layer.

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  The distribution layer is commonly the first routing hop.

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  Scalability, high availability, and fast convergence are typical requirements for the core layer.

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  The core layer provides aggregation services to the access layer.
  

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  Cisco has a market share of about 70% in the Layer 2 and Layer 3 managed switch market.

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  HP is one of the strongest competitors with a market share of about 20%.

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  Most of the competitors offer me-too point products only; they lack an overall solution framework similar to the Cisco Borderless Network.?

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  Juniper has a market share of less than 3%.
  

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  Competitors efficiently support the BYOD solution.
  

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  High availability?

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  Integrated services?

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  Network access control?

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  Application performance?