Cisco SD-Access

If my customers are having multiple sites and want to do automation and use policies in networking, this is the best solution.

I can't speak to the administration of Cisco SD-Access as I only implemented the solution provided. But it is amazing the solution contains many tools for the management of the whole network. Thanks to the security it contains you can apply different policies on the network for internal and external users and thus have much more control over who is connected.

The best way to use this solution [Cisco Software SD-Access] is in Campus LAN environments, [which] could be small, medium, and large sites, that includes remote branches also. And always use with 3 node (HA) availability. This solution is not appropriate for Data Center environments. This solution is not mean[t] to connect remote sites (the WAN itself). This solution is ideal to achieve high and low level hierarchies of security and connectivity of end users in a network.

As far as my experience with SD-Access - I think it is well suited for multi-connectivity, network segmentation, and security. Things it is not so appropriate to use with, or I'd say things that can be improved are - better functionality with ISE, ease to understand licensing and better documentation for configuration (add-ons, etc), and licensing.

In our case, it will be used to revamp our Corporate Network. I would suggest that everyone who is going through upgrades and possibly more deployments in the near future / timeline of your Information Technology Map take a look at Cisco Software Defined Access, as this would ultimately assist and make the network management optimized in the long run.

If the use case [is] to have the automation and network insight in your network, Cisco SD-Access is a good solution to go ahead with. The only concern is the stability of the codes and the bugs/vulnerabilities. The other thing [is] as it is a new technology [you] would need more focus on the adoption program from Cisco.

If the organisation is having a larger number of employees then this technology can help automate most of the regular tasks for the NOC team and can drastically reduce the workload of IT operations. The smaller organizations where the employee's count is less than 200 hundred might not opt for this technology as one-time implementation is so high and complex and also needed the expert resource to manage it who usually found so expensive.

I think Cisco Software-Defined Access (SD-Access) is suited for most types of sites and for most organizations.
Only when there is too much variation in the types of sites and their requirements might Cisco SD-Access be less valuable.