 Hello everyone, welcome to Runautox IP. Today, we'll talk about monolithic network versus pineleaf network, which one to pick? What's the pros and cons of which one of them? So let's start with the monolithic approach. In monolithic approach, we'll have one or two core switches. So let's take one, for instance. So it's a big core switch. It's a huge one with a lot of bandwidth inside. And then you connect your IP devices directly to the core switch. So you add a second core switch if you want to do redundant network. So one switch will be the blue network and the other one will be the red. If you mix them together, you can have a purple network, but that's not the goal of this video. So let's continue with the pros and cons of the monolithic approach. So one pro, in fact, the biggest one is the bandwidth. The bandwidth is not limited inside. It's a huge number of terabits per second that you can carry around. So when you connect appliance on it, when you connect your video or audio or anyone intercom, then you don't have to worry about like the bandwidth inside the core switch, it's all good. One con, though, is if you want to add like ports, if you have line cards, it's possible. When you run out of line card, you're in trouble because you have to change the entire core switch, which is really expensive and usually it's pretty big. So the other thing is the other pro is system architecture. It's done like naturally because you just need to know how many ports you need and just over scale it a little bit. So the last point, last pro is if you use it in a real medium net IP environment, the fusion, the virtues and the mu one will fit perfectly well in a monolithic approach. So let's talk about the spine leaf now. The spine leaf approach, it's like a tree. It's you have the trunk, which is the spine and you have leaves and you can add number of leaves the way you want it. You will have two core switches to do redundancy, same thing, and you will add spine leaves and you can have multiple spine leaf if you want also do redundancy. Interesting thing, a note for you to know and this is a really practical thing to understand. When you add a switch, so let's say you add a leaf, you will add a delay of five microseconds inside the switch. So follow me here. I have a leaf, I go to spine and I go to leaf. So my entire delay when the switch is properly configured will be five microseconds. Okay, that's a rule of thumb, but you will have five, five and five, so 15 microseconds of delay. So what's the pros and cons of spine leaf? Pro is you can scale from a small network to a huge one if you want to add number of leaves and you can add number of spine and you can also add the layers on top. So one thing, the con is you have to make sure your network design is carefully done because you might run out of bandwidth between the leaf and the spine and this is not good. So the other pro is that the fusion, the virtues and the muon will work really well also in the spine leaf and the virtue 48 can be connected directly in the spine same as virtue 32. So those two products can be connected directly in your core. So I hope this was useful and I think the thing to remember the most is this five microseconds when you cross a switch on the delay side. I hope this was again useful and I hope you like watching it. So for more information, please visit readall.net and thank you very much for watching. Thank you.