Cisco Application Centric Infrastructure (ACI) is network virtualization technology.
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Cisco SD-Access
Score 8.5 out of 10
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Cisco's Software-Defined Access (SD-Access) provides automated end-to-end segmentation to separate user, device and application traffic without redesigning the network. Cisco SD-Access automates user access policy so organizations can make sure the right policies are established for any user or device with any application across the network.
NSX-T and ACI both are definitely awesome products. I tend to use ACI in networks that have more barebone and/or alternative hypervisors. NSX still works best in VMware heavy networks. Another consideration is where the network is managed, by which team. If the network is …
I feel that Cisco ACI is quite good at different architecture designs. You can have it as just a straight layer two network. You can have it like we have with a vast layer three network and I think just for the layer three network it has easen up the use. I think the use cases for layer three networking is better for ACI. If you just want to do the layer two, you can still use Cisco Nexus and so on and that should be almost simpler in some way.
It's well suited in our corporate offices, where all our business users resides and where we can control all their accesses. What doesn't really fit well is when we have our branch fronts, where all the software domain access features aren't utilized to its fullest, due to the fact that customers and users don't really need to have all the security features that SDA provides.
Cisco ACI, The object model is very complicated. It's something difficult to understand and also because there is a user interface, there's a web user interface, but it's not optimal to use it because if you want to deploy a large amount of VLAN or a large amount of tenants, it's quite difficult to do it or it's quite challenging. Maybe if you want to configure a large amount of ports using the web interface, it's not appropriate because it takes a lot of time. It also provides APIs to do that, but as I say, the object model is very difficult to understand and there is very little documentation about automation of the ACI and maybe there is but it's not so easy to find.
I think something I've just went to a session with hyper fabric and the ideas that hyper fabric has. Keep it really simple because Cisco ACI is a complex system and adopt some of the ideas behind hyper fabric, bring it to ACI that will be really beneficial. So as I said, automation is a great thing, but it's still, you need to have the background and the really complex stuff that happens behind the scenes to leverage the value of that solution. And by adding more simplicity to it, I think that will be a great thing. And also integrating with other applications in terms of the automation.
Provided with the intensive fault isolation for the CISCO ACI, we are glad that we have this Data Center Solution in place and we will continue to renew as long as the future needed requirements are meet and more helpful features will be enabled in the future with the integration of security
You'll need a lot of training and hands on experience to get the most out of the product. There are a lot of very useful features in the ACI product. Often times there are a lot of ways to get to a solution for chalanges in the field. The solutions might be different eacht time. Knowing which one to implement is somtimes a challenge.
It is difficult to start using the product due to its unfamiliar name and acronyms. ,The task should be accomplished in a specific order to ensure success
It allways works. If there are problems with links going down by accident (say someone accidentally unpatches something they shouldn't have), we rarely miss more then one packet over the link. Also, using VPCs we are able to upgrade the software on the switches without the attached EPs ever noticing.
Day to day operations on Cisco ACI do not require much human intervention, the platform ticks over without any major faults. Being able to rapidly replicate the communication between two groups of machines across multiple sub networks speeds up new application delivery, and the integration into vmWare allows multiple teams within IT to work together to problem solve rapidly.
Cisco provides users and partners with a multitude of data for you to consume. I think that the stuff in the public domain goes a long way to assisting you find any answers you may need, plus insights and information from areas such as DevNet provide you with access to more than just the traditional release notes and the like
As far as my experience with SD-Access -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.
The Cisco ACI training provided by Cisco was in depth, covered all of our requirements, and allowed us to implement and maintain the platform without issues.
I rated the training an 8 because overall, it was well-structured, and the instructor was highly knowledgeable on the subject matter. The content was relevant, and I appreciated the clear explanations of complex topics. However, I felt that some sections were covered too quickly, making it difficult to fully absorb the information before moving on. Additionally, I would have liked more time dedicated to Q&A, as there were moments when I had questions but didn’t get the opportunity to ask them due to time constraints. Adding more interactive discussions or hands-on exercises could further enhance the learning experience and make it even more engaging
Being involved in the implmentation gives you more overview on how things are supposed to be working and communicating, you can easily performce troubleshooting and understanding the troubleshooting scenario
Actually we start our learning in networking career with Cisco. So it is very useful or easier to learn this product. And honestly speaking, I didn't work in any other data center solution other than Cisco. So I cannot compare what it gives us more than other popular stuff. But this is very nice product like from Cisco.
Automation, pushing template-based configuration to multiple devices in one push saves time and manpower. Assurance helps trace issues related to devices, clients, and provide the troubleshoot as the best practices. Segmentation, with the use of the SGT tags, we are able to achieve segmentation and micro-segmentation securely.
Cisco ACI scales well and is suited in scenarios such as multi-cloud or large data centre implementations. It is not suited to smaller deployments as the efficiencies that it provides are not fully realised. It is well suited in large environments that contain both virtual and bare-metal machines allowing a great deal of flexibility. It is also perfect to support multi-tenancy platforms.
We've definitely spent quite a bit of time relearning how to do things in ACI, but I think the investment has been well worth while considering that we can now deploy tenants and leaves from the ground up in a matter of seconds.
We can if we choose to upgrade an entire datacenters worth of switches in a single night. (We've chosen to break it up for availability requirements, but if you didn't require 99.999% uptime like us you may be able to do it)
