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Multi-tenant Network Architecture: Shared vs Private

February 08, 2022

Multi-Tenant Network Architecture: Shared vs Private

When it comes to designing a multi-tenant network architecture, an important decision to make is whether to use a shared or private network. Both network architectures have their advantages and disadvantages, and the decision on which one to choose depends on the specific needs of your organization.

In this article, we will provide an objective comparison between shared and private network architectures, including the pros and cons of each.

Shared Network Architecture

A shared network architecture is a network that is used by multiple tenants. This means that multiple organizations or customers share the same physical network infrastructure. In a shared network, each tenant is assigned a VLAN to ensure that their traffic remains separate from each other.

Pros of Shared Network Architecture

  • Cost-effective: By sharing the same physical infrastructure, tenants can reduce their networking costs as they do not need to invest in their own equipment.
  • Scalability: Shared networks can be easily scaled as tenants can add or remove resources depending on their needs.
  • Security: Although tenants share the same physical network infrastructure, each tenant is assigned a VLAN to ensure that their data remains secure.

Cons of Shared Network Architecture

  • Performance: Multiple tenants sharing the same physical infrastructure can lead to bottlenecks and decreased network performance.
  • Limited control: Tenants have limited control over the network architecture as they have to share the same infrastructure with other organizations.

Private Network Architecture

A private network architecture is a network that is dedicated to a single tenant. This means that the physical infrastructure is entirely separate from other organizations. In a private network, tenants have full control over the network architecture, and they can customize it to their-specific needs.

Pros of Private Network Architecture

  • Performance: A dedicated private network can provide better network performance as the tenant has full control over the infrastructure.
  • Control: Tenants have complete control over the network architecture and can customize it to meet their specific needs.
  • Security: Private networks are considered more secure than shared networks as there is no chance of unauthorized access to the infrastructure.

Cons of Private Network Architecture

  • Cost: A private network requires tenants to invest in their networking equipment, leading to higher initial investments.
  • Scalability: Private networks can be challenging to scale, as tenants need to invest in new infrastructure to increase resources.

Conclusion

In summary, both shared and private network architectures have their advantages and disadvantages. A shared network can be cost-effective, scalable, and secure, but it can also lead to decreased network performance and limited control. A private network can provide better network performance, full control, and enhanced security, but it requires higher initial investments and can be challenging to scale.

The choice between shared and private network architectures depends on the specific needs of your organization. If cost is a concern, and tenants require simple networking, a shared network may be the best option. In contrast, if tenants need full control, enhanced security, and better performance, a private network architecture might be the best solution.

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