General Q&A – Edgenexus Knowledge Base

How can I measure throughput for ADC licensing?

jsavoor@edgenexus.io — Mon, 04 Aug 2025 09:08:24 +0000

The Edgenexus ADC is licensed by throughput: 3 Gbps, 6 Gbps, and Unlimited.

So, how can I measure the throughput through my firewall and within the LAN to my application servers in order to size my license appropriately?

You can look at using 3rd party software products such as NTOPNG (https://www.ntop.org/products/traffic-analysis/ntopng/) together with nFlow Probes (https://www.ntop.org/products/netflow-probes/nprobe/), or Solarwinds (https://www.solarwinds.com/netflow-traffic-analyzer).

These will provide you with the figures you need.

Please remember to take into account all the application servers you wish to load balance, and then add an additional amount for growths and peaks.

Important Customer Advisory: Edgenexus EdgeADC Lifecycle and Platform Updates

jsavoor@edgenexus.io — Wed, 30 Apr 2025 15:51:07 +0000

Version 5 Platform Modernisation – April 2025

Our application platform has recently been updated to a new operating environment designed to provide enhanced security, long-term support, and improved performance.

Due to the significant differences between the legacy and new environments, a direct upgrade is not possible. Customers currently running older platforms will need to plan for a fresh deployment using the latest release package (ISO/OVA or equivalent) provided by us. We are here to assist in this transition where needed.

Support for Hardware Appliances (E4 Series)

Effective immediately:

E4 hardware appliances are now considered End of Life (EOL).
Software updates for these appliances will be provided on a best-effort basis only.
We are unable to guarantee resolution of any issues if they are already addressed within the latest platform release.
We encourage all E4 appliance users to plan an upgrade to a supported platform to ensure continued stability and support.

Supported Hardware Platforms Moving Forward

Newer HPE server platforms will be officially supported for deployments moving forward.
Other hardware platforms may be supported on a case-by-case basis and must be pre-approved by our team prior to deployment.
Customers considering alternative hardware should contact our support team in advance to discuss compatibility and supportability.

Application v4 and v5 Upgrade Paths

For customers using application version v4:

Upgrade to application version v5.0.0C is available.
Important: v5.0.0C will be the final version available for upgrades from v4.
No further development or feature updates are planned for v5.0.0C.
Customers should plan accordingly, as v5.0.0C will only receive critical updates on a best-effort basis.

For new deployments:

All new installations will be based on application version v5.0.0R.
Future development, enhancements, and support will continue exclusively on v5.0.0R.
Deployments on the new platform will benefit from ongoing improvements and security updates.

Summary of Actions

Customer Type	Recommended Action
E4 Hardware Appliance	Migrate to a supported platform. Best-effort support applies.(Contact licencing or Louise licencing@edgenexus.io for hardware to VM conversion licences)
Application v4 Users	Upgrade to v5.0.0C. No further updates planned beyond this version.
Application v5.0.0C Users	Plan for future migration to v5.0.0R.
New Installations	Deploy v5.0.0R for full support and ongoing development.
Hardware Users	Use newer HPE server platforms, or seek case-by-case approval for other hardware.

Assistance and Planning Support

If you require assistance in planning your migration, assessing hardware compatibility, or have questions about your upgrade path, please contact our support team at support@edgenexus.io or your account representative.

Thank you for your continued support. We look forward to helping you take advantage of the updated platform’s new capabilities and long-term benefits.

Can I use Terraform to configure the Edgenexus ADC

jsavoor@edgenexus.io — Thu, 27 Feb 2025 11:47:28 +0000

Yes. You can use Terraform to configure the EdgeADC.

Edgenexus is a certified Terraform provider, and can be found on the Terraform site:

https://registry.terraform.io/providers/edgeNEXUS/edgeadc/latest

Does the EdgeADC support Persistence based load-balancing?

jsavoor@edgenexus.io — Thu, 28 Mar 2024 14:33:13 +0000

Persistence, also known as sticky sessions, in the context of load balancers, refers to a method used to maintain a consistent user session on the same server during multiple requests. When a user first connects to a web application via a load balancer, persistence ensures that all subsequent requests from that user during the session are directed to the same backend server. This is crucial for applications where the session state is stored locally on the server, such as in shopping carts or user login sessions. Persistence is achieved through various mechanisms, such as IP hashing, where the user’s IP address determines the server, or cookie insertion, where the load balancer places a special cookie in the user’s browser to track the server assignment. This approach enhances the user experience by ensuring continuity and consistency in their interaction with the application.

The EdgeADC supports several Persistence based load-balancing policies.

Option	Description
Persistent Cookie	Layer 7 Session Affinity/Persistence The IP list-based load balancing mode is used for each first request. The ADC inserts a cookie into the headers of the first HTTP response. After that, the ADC uses the client cookie to route traffic to the same back-end server. This cookie is used for persistence when the client must go to the same back-end server each time. The cookie will expire after 2 hours, and the connection will be load balanced according to an IP List Based algorithm. This expiry time is configurable using a jetPACK.
IP Bound	Layer 3 Session Affinity/Persistence Cookie. In this mode, the client’s IP address forms the basis to select which Real Server will receive the request. This action provides persistence. HTTP and Layer 4 protocols can use this mode. This method is helpful for internal networks where the network topology is known, and you can be confident that there are no “super proxies” upstream. With Layer 4 and proxies, all the requests can look as if they are coming from one client, and as such, the load would not be even. With HTTP, the header (X-Forwarder—For) information is used when present to cope with proxies.
IP List Based	The connection to the Real Server initiates using “Least connections” then, session affinity is achieved based on the client’s IP address. A list is maintained for 2 hours by default, but this can be changed using a jetPACK.
Shared IP List Based	This service type is only available when the Connectivity Mode is set to Direct Server Return. It has been primarily added for support with VMware load balancing.
Persistent Cookie	Layer 7 Session Affinity/Persistence The IP list-based load balancing mode is used for each first request. The ADC inserts a cookie into the headers of the first HTTP response. After that, the ADC uses the client cookie to route traffic to the same back-end server. This cookie is used for persistence when the client must go to the same back-end server each time. The cookie will expire after 2 hours, and the connection will be load balanced according to an IP List Based algorithm. This expiry time is configurable using a jetPACK.
Classic ASP Session Cookie	Active Server Pages (ASP) is a Microsoft server-side technology. With this option selected, the ADC will maintain session persistence to the same server if an ASP cookie is detected and found in its known cookies list. On detection of a new ASP cookie, it will be load balanced using the Least Connections algorithm.
ASP.NET Session Cookie	This mode applies to ASP.net. With this mode selected, the ADC will maintain session persistence to the same server if an ASP.NET cookie is detected and found in its list of known cookies. On detection of a new ASP cookie, it will be load balanced using the Least Connections algorithm.
JSP Session Cookie	Java Server Pages (JSP) is an Oracle server-side technology. With this mode selected, the ADC will maintain session persistence to the same server if a JSP cookie is detected and found in its known cookies list. On detection of a new JSP cookie, it will be load balanced using the Least Connections algorithm.
JAX-WS Session Cookie	Java web services (JAX-WS) is an Oracle server-side technology. With this mode selected, the ADC will maintain session persistence to the same server if a JAX-WS cookie is detected and found in its list of known cookies. On detection of a new JAX-WS cookie, it will load balanced using the Least Connections algorithm.
PHP Session Cookie	Personal Home Page (PHP) is an open-source server-side technology. With this mode selected, the ADC will maintain session persistence to the same server when a PHP cookie is detected.
RDP Cookie Persistence	This load balancing method uses the Microsoft-created RDP Cookie based on username/domain to provide persistence to a server. The advantage of this method means maintaining a connection to a server is possible even if the IP address of the client changes.

Can I cache images to improve traffic speed?

jsavoor@edgenexus.io — Wed, 13 Mar 2024 14:12:15 +0000

Yes, you can cache specified content by using the UI available under Library > Cache.

Is there an RestAPI available for the EdgeADC?

jsavoor@edgenexus.io — Wed, 13 Mar 2024 14:08:33 +0000

Yes. The EdgeADC uses RestAPI and it is available for use here: https://app.swaggerhub.com/apis/Edgenexus/EdgeAPI/4.2.3

Support is available for licensed users who have a valid and up to date support contract.

Access to the ADC’s RestAPI can be limited by using the settings found in System > Security.

How do I add a license?

jsavoor@edgenexus.io — Wed, 13 Mar 2024 11:58:12 +0000

Installing or adding a license to the EdgeADC is simple.

You will need the license file that has been sent to you. You can choose to either use the file, or load it into a text editor and then copy/paste the license.

Navigate to System > Licensing.

Scroll to the Install License section.

Once you have located and uploaded the file, or pasted the content, click the Update button.

This will make the new license effective.

How do I get a full-function evaluation license for the EdgeADC?

jsavoor@edgenexus.io — Wed, 13 Mar 2024 11:52:38 +0000

When you download an evaluation of the EdgeADC, it comes with a limited license for a single Virtual IP. Of course, this is fine for conceptual tests, but for a real-world trial, you will require the ability to have more than a single VIP.

To obtain a full-function license, you will first require to communicate the Machine ID with our presales staff.

The Machine ID is located in System > Licensing. To access it from the GUI or the VM console, you have to log in and type MACHINEID.

Please communicate this to Edgenexus Presales (presales@edgenexus.io) and explain the requirement.

Once the license key has been sent to you, you can install it from within the System > Licensing page.

Scroll down to the bottom of the page, to the Install License section.

Here, you can choose to use the license file to install, or you can load the license file into a text editor and then paste it into the box provided.

How do I backup and restore the EdgeADC configuration?

jsavoor@edgenexus.io — Wed, 13 Mar 2024 09:41:34 +0000

In order to backup and restore the EdgeADC configuration, please follow the steps below:

Backup

Navigate to Advanced > Software.

Click the Download Configuration button.

This will download the configuration of this particular ADC to your local filesystem.

We advise that you create a specific folder for the virtual machine you are backing up, perhaps using the Machine ID as the folder name. This way you will not accidentally restore a config from one ADC to another.

Restore

To restore a previously saved configuration, click the Browse button.

Locate the backup file, taking care it is the right one.

Select the backup file and click Download Configuration.

The ADC will restore the configuration, and restart.

Where can I find the release note for the EdgeADC?

jsavoor@edgenexus.io — Wed, 13 Mar 2024 09:30:26 +0000

A continuous release note for the EdgeADC can be found on the website.

Navigate to: See Release Notes

For any other questions, please raise a support ticket.