Cisco Application Centric Infrastructure (Cisco ACI) vs. Cisco Catalyst Switches vs. VMware NSX

The ACI solution is perfectly fit for a large or multi-site data center environment. It permits simplifying deployment, management, automation, and security. ACI is especially valuable when strong scalability, automation, security, and segmentation are required. However, ACI is less suitable for a small environment due to its complexity and high cost.

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Well-suited for big companies like mine, where we have a lot of users that we have to connect together. Getting all the switches into one big stack that you can just manage all at one time is fantastic for ease of use. Not suited for maybe smaller mom and pop shops or smaller companies that don’t have as many. They could probably go with something much easier to manage.

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With proper design, VMware NSX can and should be deployed to virtually any VMware virtualization environment, but the deployment should be tailored to the needs of that environment. There isn't really a one size fits all deployment design for all environments. That versatility is what provides its greatest strength to a business.

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• 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.

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• Easy-to-use management interfaces. The CLI commands go across the whole Cisco Catalyst Switches 9000 series, so it makes it easy, the code being the same on the 9000 series. Just being able to do port channels, trunks, and connecting up edge switches to it with the Cisco Catalyst Switches 9000 Series.

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• End to end encryption on the wire.
• Micro-segmentation.
• Integrates well with existing VMWare environment.
• Integrates well with our existing network.

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• 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.

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• One thing is that these, every time Cisco gets a new switch, they just make an amendment to the power supply, so they'll just put a knob on it. So let's say if you lose any power supply unit, you'll have to purchase another one, which costs a lot of extra money because we have a lot of another power supply units from the redundant, which we can use, but we can't now because they have just tweaked the modeling of that. Which makes no sense, particularly to me because it's an extra money making machine kind of a thing. But that's fine.
• Another thing is these ports, I believe they are a bit less of, if I can say the quality of the oldest switches, they were quite sturdy. As I said earlier, the new switches, they're very light and when you lift them you feel it. So that's one thing, which I think the quality or the material which we are using has gone down.

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• Interoperability in multi-vendor environments
• Advanced networking and packet acceleration options can be improved

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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

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They are consistently reliable and this switch in particular is a very affordable solution. We can place the Cisco Catalyst 1000 Series Switches gear in areas that we normally would not place a switch because it is affordable enough to make it justifiable. And because it is a reliable solution, we are confident it will continue to provide service over the long haul.

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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.

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Cisco by and far does a great job with the Catalyst line. From a layer 2 dumb switch all the way up to ISP carrier grade switching within the Catalyst portfolio. The best part about it is command parity among the various tiers of product. The only differences are going to lie in what features are available per switch.

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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.

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We have very few is any outages due to a Cisco hardware failure. Some of our gear is exposed to some pretty harsh environments, and they keep on ticking!

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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.

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No, the packets flow. Sometimes you will see collisions and broadcast storms can happen which will slow performance but that can be fixed and the packets will flow.

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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

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We rarely have issues with the product. I have only had to contact support one time since we put it in and that was to see if another vendor was giving me accurate information on an issue I was having.

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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.

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Cisco Networking Academy partners with many local Colleges and High Schools to provide great hands-on training. You do need to drive to learn the topic. The in-class session only go so far. You really need to apply this to the real world. Cisco makes it easy for business to connect via CLC or Cisco Learning Credits.

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My own personal research to get the information I want is very handy and helped me many times

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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

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The implementation of the Cisco Catalyst 1000 Series Switches is fairly seamless, especially if you are familiar with Cisco products. We have had Brocade switch gear in place too, and the differences between the manufacturers [are] not a major issue.

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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.

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2960s, 9200s, 9400s, 3650s, 3800s. I think that this product is a lot better. I know I just complained about the noise, but it’s still much quieter than our other ones. So we do have a couple of public deployments, and once we swap these out, they complained less. Sometimes we have small offices that get the gear in with them, and these sound less like a jet engine. And yeah, these are a lot easier to manage as well. Everything in the same family. It’s a lot.

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We use both Cisco ACI and VMware NSX, and while they have different strengths and capabilities, I would recommend VMware NSX, as it can be used in all VMware environments, without costly physical infrastructure changes. Cisco ACI provides some of the same capabilities, but not all. It's focus relies on physical networking changes.

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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.

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We are exclusive Cisco at our organization. In truth part of the reason is, with one type of switch and one manufacturer, it is easier to support. It is also easier to give consistent training to our staff in our tech department

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• 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)

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• energy costs dropped by around 11 per cent on the access layer
• management has become easier with DNA Center
• ISSU software upgrades and fabric deployments have significantly reduced "planned" down times
• network speed has increased, latency is at an all-time best within our own LAN

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• Ability to move workloads more easily with the ability to stretch/move networks across multiple physical locations.
• The added flexibility allows you to expedite tech refreshes since you're no longer constrained by the hardware.

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