We use this product for software-defined networking. We are a solution provider and we build a platform for our clients that includes it.
COO at Axians ICT Austria GmbH
Good micro-segmentation capabilities, but the technical support needs improvement
Pros and Cons
- "The most valuable features are the micro-segmentation and integrated security options."
- "The technical support could use some improvement."
What is our primary use case?
What is most valuable?
The most valuable features are the micro-segmentation and integrated security options.
What needs improvement?
The technical support could use some improvement.
For how long have I used the solution?
I have been using VMware NSX for a year and a half.
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What do I think about the stability of the solution?
This is a stable product.
What do I think about the scalability of the solution?
NSX-T is scalable, and we have approximately ten people who use it.
How are customer service and support?
The VMware technical support could be better. They're not always reachable and expertise is not widespread. Especially in Austria, there are not a lot of people who are skilled.
Which solution did I use previously and why did I switch?
I have not worked with another software-defined networking product.
How was the initial setup?
We had some challenges during the installation and setup.
What about the implementation team?
We implemented this product in-house.
What's my experience with pricing, setup cost, and licensing?
The price of this product is too high.
What other advice do I have?
This is a good solution, but there is always room for improvement.
I would rate this solution a seven out of ten.
Which deployment model are you using for this solution?
Private Cloud
Disclosure: My company has a business relationship with this vendor other than being a customer: partner

We can do a lot of things without waiting for the purchase of additional devices, such as setting up VRF on physical devices
Pros and Cons
- "The firewall is its most valuable feature."
- "We would like tenant segmentation available in future releases."
What is our primary use case?
We support clients who use on-premise VMware NSX. We provide daily maintenance and support for this solution.
How has it helped my organization?
We are mostly using it for microsegmentation, which is very good. We now use it on a daily basis. Our clients are very satisfied that we can limit ourselves to NSX without the need to purchasing additional network systems and physical devices.
We can do a lot of things without waiting for the purchase of additional devices, such as setting up VRF on physical devices. We are able to implement a lot of things with the infrastructure code.
What is most valuable?
The firewall is its most valuable feature.
It is a mature solution that is available for enterprise companies.
What needs improvement?
We would like tenant segmentation available in future releases.
For how long have I used the solution?
One to three years.
What do I think about the stability of the solution?
So far, so good.
What do I think about the scalability of the solution?
We haven't face any problems yet with scalability. Hopefully, it will stay that way.
Which solution did I use previously and why did I switch?
We were previously using the physical devices from Cisco.
How was the initial setup?
The setup is not easy, but it is doable.
What about the implementation team?
We did it ourselves.
What was our ROI?
We have been able to save CAPEX with this solution.
Which other solutions did I evaluate?
We chose NSX because we were looking for a product with network polarization, so VMware was the first choice for us.
What other advice do I have?
PoC the platform before you test it. It is not so bad.
We are using the VVD implementation. It is implemented together with the vRA, vROps, and other solutions.
Disclosure: My company has a business relationship with this vendor other than being a customer: Partner.
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VMware NSX
February 2025

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Cloud Engineer at IBM
Video Review
We can deliver the network that customers need quickly and safely
What is most valuable?
We can deliver the network that customers need quickly and safely. That is most important.
What needs improvement?
There is one feature I'm finding with VMware which is special for us from IBM with JIRA routing protocols. This is in the future that they are planning, especially right now with our compatible AWS. AWS is good, understood, except for the software to improve, probably with Amazon right now doing this partnership. VMware and access are going to be improved for that.
What do I think about the stability of the solution?
It's totally stable, because right now it's running version 6.3. It's very mature. Even the versions with VMware 5.5, 6, and 6.5 are very stable right now. It's becoming more open to other environments, too. It's not only working with VMware, but also with Red Hat and Ubuntu. It's an amazing product.
What do I think about the scalability of the solution?
Totally scalable. I almost can tell this is the first real multi-tenant product from VMware that will scale out and do real multitenancy.
How is customer service and technical support?
Tech support is nice. It could be a little bit better. Simple, since this is a new product, you don't have too much specialists over the world. Because it is a mix between the virtual world with VMs, and now networks, it's networking virtualization. So, VMware with NSX is being a pioneer. They are improving their support every day.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
System Engineer at a tech services company with 501-1,000 employees
It is robust and easy to implement
Pros and Cons
- "It is easy to implement it."
- "If there are other solutions already in place, it can be difficult to implement."
What is our primary use case?
We use it for microsegmentation, and it has performed well.
How has it helped my organization?
We use this in combination with VMware Horizon View. With Horizon, we have an isolated environment.
What is most valuable?
The most valuable feature is to control application behavior.
It provides us with features that other products have not.
What needs improvement?
If you start with a new or greenfield environment, it is okay to implement. However, if there are other solutions already in place, it can be difficult to implement.
What do I think about the stability of the solution?
The stability is very good.
What do I think about the scalability of the solution?
Because it is in the VMkernel, it is robust.
How is customer service and technical support?
I have no contact at the moment with VMware support about NSX.
How was the initial setup?
It is easy to implement it.
What about the implementation team?
I am the partner. I work with the customer to do the deployment.
What other advice do I have?
I would recommend it to another person.
We do not integrate it with vCloud Director.
I don't use load balancer at the moment.
Disclosure: My company has a business relationship with this vendor other than being a customer: Partner.
System Administrator
we can deploy many VMs faster but we have had recent issues with stability
Pros and Cons
- "We are happy with the scalability."
- "It was stable for one year, there was no impact. In the last two months, we had two big incidents."
- "We've have had good and bad experiences with them. We don't always find them to be so impactful. Sometimes the support guy isn't so on top of resolving the issue and it can take a while to sort out."
What is our primary use case?
My company's primary use case for this solution is the microsegmentation. It's futuristic.
How has it helped my organization?
VMware NSX has improved our organization in the way that we can now deploy many VMs faster than before and so we are scaling up much faster.
What is most valuable?
We like that NSX is faster. My colleagues manage their own firewalls so they can freely deploy their VMs. The ability to freely deploy is one of the most valuable features.
What do I think about the stability of the solution?
This solution is robust and agile. It was stable for one year, there was no impact. In the last two months, we had two big incidents.
What do I think about the scalability of the solution?
We are happy with the scalability.
How is customer service and technical support?
We have needed to use their technical support. We've have had good and bad experiences with them. We don't always find them to be so impactful. Sometimes the support guy isn't so on top of resolving the issue and it can take a while to sort out.
What about the implementation team?
It was deployed by a VMware consultant.
What other advice do I have?
I would tell people who say that NSX is complex that it's not as complex as they think and they should definitely consider this solution.
I would have rated this solution a nine, but in the last two months, we have had two incidents with them.
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Practice Manager - Cloud, Automation & DevOps at a tech services company with 501-1,000 employees
NSX for vSphere vs. NSX Multi-Hypervisor
Originally posted at vcdx133.com.
This post provides a Tech101 breakdown of VMware NSX. If you have heard the buzz-word “NSX” or “Network Virtualisation” and want to learn more about it, this post is for you.
VMware NSX has two distinct variants – NSX for vSphere (NSX-v) and NSX Multi-Hypervisor (NSX-MH). The most feature rich version is NSX-v (as you would expect) and the most flexible and vendor agnostic is NSX-MH (albeit with less features). Currently these are separate binaries that you download and deploy, however there is talk that in the future it will be a single binary set with a V/MH software setting during deployment.
A little bit of history will also clarify things. VMware acquired Nicira in 2012 and integrated/developed the NSX product suite by combining VMware’s vCNS (aka vShield Edge and App) with Nicira’s NVP. So if you understand vShield, it will give you a good start to mastering NSX.
The diagram below illustrates the NSX architecture, complete with physical infrastructure. Note, storage virtualisation has been deliberately left out of the diagram since it is not in-scope. The “P2V” lines denote the possible NSX overlay to physical network integrations.
NSX for vSphere (NSX-v)
NSX-v has the following components:
- vSphere ESXi – server hypervisor.
- vSphere Distributed Switch – the advanced Layer 2 virtual Switch that VMware provides with the Enterprise Plus licence (you cannot use the vSphere Standard Switch with NSX).
- NSX Manager – management interface of NSX, presented via the vSphere Web Client and has a northbound NSX API.
- NSX Controller – the control plane of NSX which also has the northbound NSX API.
- Logical Switch – VXLAN tunnels that run across disparate networks.
- Edge Services Gateway (ESG) – provides L3-L7 network services to the outside world.
- Distributed Logical Router (DLR) – provides L3-L7 network services to the physical and virtual infrastructure via a hypervisor service for the data plane and a virtual appliance for the control plane.
- Distributed Firewall – this is a service that runs on ESXi and provides micro-segmentation of virtual infrastructure
- Third Party integrations – advanced L3-L7 services provided by Third Parties via the NSX API. eg. Palo Alto Networks, McAfee, Trend Micro, F5, Citrix, Silver Peak, etc.
- Physical Network – traditional core, aggregate, distribution, access or Clos-type Leaf & Spine architectures
- Virtual overlay to Physical network gateways – the NSX virtual overlay integrates with the physical world via a gateway. eg. Routing, L2 Extension, VXLAN, etc.
What are L2 to L7 services? VLAN, VXLAN tunnels, Network Firewall, IPS, Application Firewall, NAT, Routing (OSPF, BGP, IS-IS), Load Balancing, SSL VPN, IPSec VPN, Route redistribution, etc.
NSX for Multi-Hypervisor (NSX-MH)
The NSX-MH has the same functional components, except it uses Open vSwitch (instead of vDS) with KVM, Hyper-V or XenServer and does not have a Distributed Firewall (no micro-segmentation).
Why do it this way?
You may have heard about the “Goldilocks zone” (not too hot, not too cold, just right – used to describe Earth’s placement in the solar system for sustaining life). The hypervisor is the “Goldilocks zone” of the Data Center, it is the natural meeting place for the Software Defined Data Center (SDDC) – Compute, Network and Storage.
If you understand the benefits of server virtualisation with vSphere (abstraction of the Operating System from the hardware, etc.), you can apply the same logic to network virtualisation. There is also the driving force of creating blueprints within the Service Catalogue of the Cloud Management Platform and linking polices (compute, network, storage and security) to the blueprint.
Weaknesses
- The biggest weakness of NSX – no associated hardware, since VMware is a software company, is also its greatest strength. You can run NSX across any physical network (as long as it meets the fundamental requirements of scalability, performance and reliability) and use it to connect disparate networks together.
- Because NSX is software, it cannot match dedicated physical hardware in terms of performance, however this weakness is balanced with flexibility and scale. Ensure that your SDDC is designed to match your business requirements – this way the risk of lack of performance is mitigated.
- NSX on its own is not the greatest use-case, you really want to use it to complete your SDDC solution (ie. Cloud Management Platform, Compute Virtualisation, Network Virtualisation, Storage Virtualisation and Service Catalogue).
Disclosure: I am a real user, and this review is based on my own experience and opinions.
System Advisor IT at CRIF India
Support need improvement, but it is stable, and easy to install
Pros and Cons
- "It's a beneficial tool."
- "The support needs improvement."
What is our primary use case?
Load balancing is achieved using VMware NSX. The load balancing feature provided with VMware vSphere is called NSX.
While using the virtual server with your on-premises trusted internal network, you can set up rules to prevent them from doing specific activities.
What is most valuable?
VMware NSX is a very good product.
It's a beneficial tool.
What needs improvement?
VMware NSX needs improvement.
For how long have I used the solution?
We have been using VMware NSX for a couple of years.
We are using the most recent version.
What do I think about the stability of the solution?
I have no issues with the stability of VMware NSX.
What do I think about the scalability of the solution?
VMware NSX is a scalable solution.
NSX is not a user, product. NSX is for securing your virtualization platform.
How are customer service and support?
The support needs improvement.
How was the initial setup?
The initial setup is straightforward.
What other advice do I have?
I have not yet fully explored all that this solution provides. I am still analyzing it. From the knowledge and experience that I have today, I would recommend this solution.
I would rate VMware NSX a five out of ten.
Which deployment model are you using for this solution?
On-premises
Disclosure: I am a real user, and this review is based on my own experience and opinions.
Architect Enterprise Business at Mindfire Technologies LLC
Great for protecting virtual machines; stable and reliable
Pros and Cons
- "Provides protection for virtual machines."
- "Quite a complex solution."
What is our primary use case?
Many of our customers are moving to these kinds of options in order to reduce the number of physical devices and to increase security. I'm an architect of enterprise business and we are an enterprise partner with VMware.
What is most valuable?
The solution is valuable in that it makes it very easy to protect virtual machines
What needs improvement?
The product is quite complex and that could be an area where improvements could be made.
For how long have I used the solution?
I've been using this solution for over a year.
What do I think about the stability of the solution?
This solution is stable.
What do I think about the scalability of the solution?
The solution is scalable. I've implemented it in an organization with 2.000 servers and it's fine. That is my experience. I don't have experience with larger environments.
How are customer service and technical support?
We are directly linked to VMware so we haven't needed to contact the technical support.
How was the initial setup?
We did face some challenges with the initial setup.
What's my experience with pricing, setup cost, and licensing?
The cost of the solution is a little high, particularly given that most people will not use all the features of the product. If a customer does use all the options, it is a very cheap solution but that is unlikely. For a regular user looking for normal switching, the price feels high. If it's implemented properly you can reduce the cost.
What other advice do I have?
This is a good product and I highly recommend it.
I would rate this solution an eight out of 10.
Which deployment model are you using for this solution?
Hybrid Cloud
Disclosure: My company has a business relationship with this vendor other than being a customer: Partner

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