Hybrid connectivity type and design considerations - Hybrid Connectivity

Hybrid connectivity type and design considerations

This section of the whitepaper covers the considerations that impact your choices when selecting a hybrid network to connect your on-premises environments to AWS. It follows a logical thought process to support you selecting the most optimal hybrid connectivity solution. The considerations impacting your design are categorized into considerations that impact your connectivity type, and considerations that impact your connectivity design. Connectivity type considerations will support you deciding between using an internet-based VPN or Direct Connect. Connectivity design considerations will support you deciding how to set up the connections.

The following considerations that impact your connectivity type are covered: time to deploy, security, SLA, performance and cost. After reviewing those considerations, and how they impact your design choices, you will be able to decide if using an internet-based connection or Direct Connect is recommended to meet your requirements.

The following considerations that impact your connectivity design are covered: Scalability, Communication Model, Reliability and third-party SD-WAN integration. After reviewing those considerations, and how they impact your design choices, you will be able to decide the optimal logical design recommended to meet your requirements.

The following structure is used to discuss and analyze each of the selection and design considerations:

  • Definition - Brief definition of what is the consideration.

  • Impact on design decision - How the consideration impacts the design choices.

  • Requirement definition - Provides a set of questions to enable you to collect the requirements associated with the consideration.

  • Technical solutions - Solutions to address the requirements associated with the consideration.

  • Decision tree - For some considerations or a group of considerations, a decision tree is provided to help you select the optimal hybrid network solution.

The considerations impacting your hybrid network design are covered in an order where the output of one consideration is considered as part of the input for the subsequent consideration. As illustrated in Figure 2, the first step is to decide on the connectivity type, followed by refining it with the design selection considerations.

Figure 2 demonstrates the two consideration categories, the individual considerations and the logical order in which the considerations are covered in the subsequent sub-sections. Those are the essential considerations when making a hybrid network design decision. However, if the targeted design does not require all these considerations, you can focus on the ones that are relevant to your requirements.

Figure 2 – Consideration categories, individual considerations, and the logical order between them