Switch speeds

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26 Jul 2024
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Dear Everyone,

I am totally new to networks, and a lot of hardware surrounding them. I am trying to learn more about switches at the moment. Some YouTube videos talk about them in a general sense, and some of them delve in thier exact methods of working, and how that occurs - like MAC address tables etc. One guy was talking about a switch and its ability to learn and flood should it need to, using a MAC address of al FFs. But I’m some aspects he is very good, but he doesn’t always explain everything that well. For example when a switch will use an all FFs MAC address to flood the network, sand when it will just learn =- all that kind of stuff and the surrounding functions switches can perform, at that kind of level.
Others talk about switches in a more general level - what they are and do, why they are needed, thier physical make up etc.
I’m not sure what I should be looking at, if I wanna learn networking at a decent level. I am trying to learn enough about networks, plus programs like Active Directory - which has now become Azure, and other aspects, so I can find a job to start with as 1st line IT support. I would like to go a lot further than that, but you gotta start somewhere if you totally change career, whatever your age.
Any help would be appreciated,
Thanks for reading,
Matthew
 
YouTube is great for a lot of information but you'll probably get further with a CBT Nuggets or similar membership.

CCNA or Comptia Network+ will be good qualifications to study for if networking is your thing.

Active directory (Or Entra ID) is a totally different animal though and you'll need Microsoft certs for those. They used to be covered in an MCSA or MCSE cert but I've recently found they've been renamed or changed but not looked into it further.

Some jobs will give you full training though and I'd 100 percent say that experience is worth way more than certifications to an employer.
 
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