VMware

The Unspoken Advantage of NSX-V over NSX-T

NSX-T vs NSX-V: Understanding the Differences in Edge Computing

Network Functions Virtualization (NFV) is a rapidly growing field within the networking industry, and VMware’s NSX-T and NSX-V are two of the most popular platforms for implementing NFV. While both solutions provide edge computing capabilities, there are significant differences between the two platforms that architects and engineers should be aware of. In this article, we will explore the differences between NSX-T and NSX-V in terms of their edge computing capabilities, and discuss how these differences can impact network design and deployment.

Edge Computing in NSX-V

In NSX-V, the edge is typically represented by the Edge Services Gateway (ESG), which provides routing capabilities between virtual and physical networking infrastructure. The ESG is deployed as a virtual machine on a vSphere cluster and offers features such as load balancing, VPN, DHCP, and more. The NSX manager takes care of the entire lifecycle of the edge, including deployment, configuration, monitoring, and upgrades.

Edge Computing in NSX-T

In NSX-T, the edge is represented by the Distributed Logical Router (DLR), which is a router that sits in every transport node (mostly ESXi host) and enables routing at the source hypervisor. The DLR is responsible for all traffic within the NSX world, and uses the underlay as transport between nodes. Additionally, NSX-T introduces the concept of gateways, which are used to connect different transport zones. There are two types of gateways: Tier-0 (tenant gateway) and Tier-1 (management gateway).

Comparison of Edge Computing in NSX-V and NSX-T

Here are some key differences between edge computing in NSX-V and NSX-T:

* In NSX-V, the edge is a single virtual machine (ESG), while in NSX-T, the edge is distributed among all transport nodes (DLR).

* NSX-V uses a centralized management approach, while NSX-T uses a distributed management approach.

* NSX-V has a single gateway (default gateway), while NSX-T has two types of gateways (Tier-0 and Tier-1).

Impact on Network Design and Deployment

Understanding the differences between edge computing in NSX-V and NSX-T can have a significant impact on network design and deployment. Here are some key considerations:

* In NSX-V, the edge is typically deployed in a centralized location, while in NSX-T, the edge is distributed among all transport nodes. This means that NSX-T requires more careful planning and design to ensure that the distribution of the edge does not impact network performance.

* NSX-V uses a single gateway (default gateway), while NSX-T has two types of gateways (Tier-0 and Tier-1). This means that NSX-T provides more flexibility in terms of gateway placement and configuration.

Conclusion

In conclusion, edge computing in NSX-V and NSX-T have significant differences that architects and engineers should be aware of. While both solutions provide routing capabilities between virtual and physical networking infrastructure, NSX-T provides a more distributed and flexible edge computing architecture. Understanding these differences can have a significant impact on network design and deployment, and can help organizations make informed decisions about which solution to use in their networks.