 Hello everyone, welcome to Renault Talks IP, in-band versus out-of-band. What's the difference and which one should we use? So let's go with a definition to start. So in-band control and management is sending control information within the same band or channel. In our case, it's the same network. So in contrast, the out-of-band, as his name stated, it's sending the control on a different network or a different band. So let's talk about in-band to start. At the beginning, when we started to do that with the new one, people were scared and said, who? You send the data, the control data, and same time you send video and audio. Is there any conflict? Basically, there is no conflict. You can configure QS if you want, but you can also configure some VLAN, so virtual LAN tagging to make sure that the packet are considered on different virtual LAN. Think about the PTP for a second and I will go back to the PTP, but the PTP is a super critical signal and you send it with the video, audio and ancillary and there is no problem there. The out-of-band control, as the opposite, will request you to add some switches, to add some cabling, to add some fiber because you need a different, a separated network. One thing also to realize is, out-of-band, not all broadcast equipment have two ports for the control, for a redundant control, but when you use in-band control, you have the red and blue, so you have a redundant control there. As same as the PTP, you have a redundant PTP, two grandmasters. So let's go in telecommunication for a second, as an example. It's a large network, consider Canada or US or any large country, Australia for instance. So if you don't use in-band control for your equipment, then you need to add an extra cabling, extra equipment and think about a large country, you will add switch everywhere, cabling, fiber, so this is why mainly like telecommunication use in-band control. Sometimes they use out-of-band and the reason is simple. They want to be able to control the equipment or configure it when the network is down. But think about that, if the broadcast network is down, is your video audio broadcast is down? We have bigger problems than the control, right? We don't have any production. We don't have any video and audio flowing in my system. So what's the pros and cons of in-band? So pros and cons of in-band, of course, you need to be carefully designed and configured at the beginning, but the pros are you minimize the number of equipment, you keep your system super slick, super simple. And this is why you keep also the cost low because you don't increase the number of equipment, number of switches, number of router. So at the end of the day, in-band prove itself right. And this is one thing. An old friend from a networking equipment company told me at some point it's a unified network. Everything has to be carried on. The network don't think differently compared its packet for the network. And this guy said it's a unified network. Thank you very much for watching. I hope this short presentation was useful and you learned something today. For more information, please visit readall.net. I'm Renaud. Thank you very much for watching.