Hey Jacob ,I feel you are the best teacher I have ever come across,its been so easy and straight forward to get subnetting and Vlan ,I want to pursue COMPTIA+ ,I would request you to let me know if there is any customized training program you/your team provides .
I’ve been searching for different definitions to make me actually understand what a vlan is and its function in a network, you just solved my problem in literally 5mins😭😭
I had to go back and replay the video again and again because my concentration was on his eyes, damn beautiful eyes! He's so hot!! Anyway, great explanation. Thanks! :P
I have a real world example. I work in school IT support and we have multiple networks. The 2 main networks are for staff and students. The staff devices (mainly staff laptops and iPads) automatically connect to the staff network and the student devices (mainly Chromebooks) automatically connect to the student network. The reason we have this in place is for network control. We don't want students to be able to see staff devices on the network and it also helps with our content filtering so that they can't look at school inappropriate things. It basically allows us to have granular control over the networks we run at our district.
@@ferdinardajaba2691 Yes, they are on VLANs. I don't know the full network configuration since I don't work on that side of the networks. I do know that there are VLANs for the student network and for the staff network. On your switches, you assign whichever ports you want for students and staff. On the wifi access points, you create 2 networks (students and staff) each with their own VLAN. We have a Chromebook management system that automatically connects the CBs to the student network when a student logs in and if a staff member logs into a CB, it puts them on the staff wifi network.
Let's say I have a 5 port switch. In the switch I can assign different ports to different VLANs. How do I connect that switch to a Linux PC's single eth0 port and break it out into the different VLANs, giving me eth0.1, eth0.2, eth0.3 and eth0.4.. Effectively giving the PC 4 ethernet ports?
Dang, you nailed it. I hated this stuff until I started watching your videos. I have just started to learn how to program multiple vlans on switches. U r a darn good teacher.
Can I restrict a VLAN to a predefined set of UDP or TCP ports? Let's say I have an open service interface for maintenance, can I set up a VLAN that would only allow the UDP or TCP ports of the service application but make the operational data between the devices inaccessible from the service interface? Thanks!
Seems to me that the same feat can be accomplished by just running a lot of ethernet cable from a main switch to each of the other switches in the network to connect them all. Of course Vlan makes this simpler to some degree, but still; what did this really accomplish other than just making a different way to do networks? Perhaps I am missing something, but I guarantee you it's not anything you said in the video, cause you repeated it twice to three times in a lot of cases.
If any device can be connected to any VLAN whats the Purpose of a VLAN? Is it that the traffic is still separate? Would that mean that every switch has to be set up exactly the same?
Dam. I was going through my new router and I found this option. I was hoping that it was a bridge that could make a "virtual" LAN over the internet so I could play a few games like I was on LAN with a friend. Though I do find this equally interesting and well explained. Thank you!
In case you never found your answer, what you're looking for is a VPN tunnel. You can use a VPN to hide your traffic, but you can also use it to connect two sites so that they act like a LAN together.
Great explanation. Suggestion: do a hypothetical case study of the finance dept. and go a little further explaining the break down a little bit more using that idea of finance dept and finance dept's guests
@@Strange19665 there are layer 2 and 3 switches. Layer 2 switcher has routing capabilities if you know how to configure it, while layer 3 is just a switch.
Good effort but VLAN main ideal is to separate broadcast , it's just that many switch vendors implemented a full separation between VLANs resulting in a full isolation between VLANs . these days we say the benefit of vlan is for security; layer 2 segmentation.That is a secondary benefit. And lastly your building diagram is incomplete, it is with the help of trunking links that VLANs in switches are extended between switches. Many years ago a company call cabletron tries to implement something call secure fast ; a porous VLAN; block broadcast but allow MC and Unicast between VLANs ( it failed ) but that is the MAIN idea of VLAN ..separate broadcast domain
So basically what he is saying is that (if the switches are cabled together), VLANs can be configured by attaching your PC to a switch configuration port. Then you configure certain hosts to certain VLANS.
I like how you provided the reason VLAN was created. makes things a lot easier. I would like to see more how VLANs are implemented, how to map them, IPs, subnets, and all of that good stuff. if you have any link to this it would be very much appreciated.
So how do you go about asigning host to vlans? Lets say i got a /24 ip address and need 65 host? Do i just need one switch or more since most switches are 24 ports( not talking about Nexus switches). Please explain.
I had to go through a ton of RU-vid videos with East Indians with strong accents and useless information before I found this useful, articulate, well produced presentation. Thank You! This video needs to be atop the RU-vid search algorithm.
VLAN's have their purpose, but they can be difficult to manage. Best not to over VLAN, or you may wind up in a big mess in a disaster recovery situation. Make sure you have config backups and great documentation. Rebuilding a defunct organization from disaster will take considerably longer using too many VLAN's.
If two computer on same switch with different VLAN cant communicate then why do we connect all systems together because this is not possible that one dept system will send message to other dept system and let say if a person is using facebook so he wont be able to send message from one Vlan to another vlan system. What is the use?
Today i actually understood what VLans are about. I have seen several other tutorials regarding VLNAS but that has left me puzzled till i watched this video. Thanx for the wonderful explianation...Cheers :)
Dat was d most amazing and the simplest explanation of purpose of vlan... U explained it on a real time basis...after months finally got d logic You r d best!
