Hi Jeremy, I just want to say back in 2009/2010 , I started my ccna track with you (your CBT Nuggets) and Chris Bryant helping me through my CCNA and my CCNP, I am a technical supervisor now for an ISP that runs fibre internet. The only reason I got a shot to work in the fibre side of networking was when I went for an interview in my mid 20's to a Layer 2 Fibre provider, the person who interviewed me was the network architect and a CCIE, when he found out I was a CCNP , he asked me the hardest network engineering questions of my life, I ended up getting the job which started me down fibre. If it was not for your training videos I would of not be where I am today. So thank you for all your wonderful Nuggets and god bless you.
@BurdenTube
4 жыл бұрын
The distance of fiber is more based upon whatever optics are driving it. MM optics are LEDs, while SM optics are lasers. Also different laser types have been used to extend the range out to 120km for a single run, but it's all dependant on the number of splices in the run, which causes light degredation and limits how far the laser can reach. One other point, while you always need Tx and Rx, there are modules that collapse those into a single fiber, where Tx and Rx are on different wavelengths of light within the fiber.
@dr.johannesmunch891
3 жыл бұрын
Great series! For me, fiberoptic links provide the advantage of galvanic isolation. I once installed FO-lines in a farm. The houses were all wired on different phases (here in Germany we have a 3-phased 50Hz AC with the phases shifted by 1/3 Pi ... normally no problem but the zero-potential was not equal between the farmhouse (where his brother lived and the shop was), the remise (were my friend lived) and the barn (where the milking machine and the cooling needed network-connection). By selectively installing FO-lines between the buildings we could prevent to lose the 4rth switch (1x D-Link, 1x Cisco small business, 1x 3Com). Yes, they just replaced the hardware without thinking what caused the problems.
@aneszarty169
4 жыл бұрын
I've been dealing with Fiber and copper cables since couple of years, manage to pass my CCNA R&S before cert apocalypse with the help of your cbt nuggets course. Last month got a new job as a. Junior network admin. Thank you Jeremy for the amazing content
@timmymorris91
4 жыл бұрын
Hi Jeremy, thanks for the video. Just some feedback though - I like to listen to videos on 2x speed and I can’t do that with this video because of the music.
@troseberry91585
4 жыл бұрын
I've been the hands on IT guy at my company for almost 12 years (getting my CCNA soon) and any time we have to have new fiber ran I sit with the installers because it's so cool to watch. I've seen it done the old school manual way (cutting, polishing, cleaning, welding) and the newer more automated way with the machines and it's just amazing to watch it!
@lexington476
4 жыл бұрын
Yeah I got to see the manual process done one time, it was absolutely fascinating, a true craftsman. I can't imagine how much those guys make.
@JM-bl3ih
4 жыл бұрын
@@lexington476 they make dog shit actually. its an extremely easy skill to pick up.
@coffeegonewrong
4 жыл бұрын
Very nice. One thing to add though, what connection is on the patch panel is usually up to who installed it. The push lock connectors seem to be older installs or used by closed circuit video systems. Newer network installs were SC, then everything recent was LC. If you are asking someone to install it...ask for what you want. Not having to keep unique patch cables handy saves tons of time.
@josephbais7463
2 жыл бұрын
Really helpful for those who already know how to configure Routers and Switches.
@attilavidacs24
3 жыл бұрын
We just had a new fibre line installed on our work site and I was watching the contractor bring in the new cable. I was amazed to see that the RX and TX are on a single fibre strand and was terminated with a single LC connector (not a dual one). Even the SFP GBIC was a single socket connector.
@jjrulz17
4 жыл бұрын
This is brilliant, we're always thought about routers and switches but no one ever really talks about interconnecting them and the requirements. This would be very beneficial for guys just starting their networking careers
@Casperr123
4 жыл бұрын
Omg, this is gold. Jeremy you can deliver everything about anything :). You are the rock star of the IT world, keep these videos coming, looking forward, cheers.
@MagnusHolmberg-NetSec
4 жыл бұрын
I wouldn’t say lower bandwidth on mm, within data centers most cables are MM om4 to keep down cost as the distance are short but bandwidth are high. 100g+
@wiziek
4 жыл бұрын
That fiber "patch panel" at 2:56 looks a lot like fiber splitter for GPON.
@365techtips
4 жыл бұрын
I really hope this is heading towards your methodology for cable management in a rack. Bet it is amazingly neat.
@giovannioberti8390
4 жыл бұрын
fantastic You are the best.I needed a nugget like this
@sierraactual4310
4 жыл бұрын
Thanks for the awesome videos
@johnphilip7631
4 жыл бұрын
These videos are extremely helpful, thank you for taking the time to post.
@aleks.lambreca
4 жыл бұрын
Jeremy, music and talking doesn't really help here... still love every single one your videos explaining technology!
@rohanofelvenpower5566
4 жыл бұрын
it works nice. that's why you go to the pub. get good earphones.
@lexington476
4 жыл бұрын
Great video. There's been times where I have been setting up fiber cables between switches and ran it around and around and thought I would have broken it and the cable was fine. Then there's been times where I barely touch a fiber the cable and broken it.
@VirendraBG
4 жыл бұрын
Please *Skip* background music. It's annoying. Your videos are really good. Keep posting.
@henkondemand
4 жыл бұрын
Amazing content Jeremy
@markarca6360
4 жыл бұрын
Multimode optical fibers uses LEDs (normally the red color part of visible light) while single-mode optical fibers uses lasers.
@NetworkEngineer
4 жыл бұрын
Farther not further, but good material!
@jaylaniahmed2103
4 жыл бұрын
I always love your videos and explanation
@lucacorpataux5598
3 жыл бұрын
Hey Jeremy. Thank you for this video, very well explained as usual! I'm just wondering why you didn't talk about BiDi Connector ? That's becoming more popular and a lot of people working in this industry are unaware of the type of fiber allowing TX and RX to be sent on only one of the cable thank's to multiplexing.
@techevangelist8373
4 жыл бұрын
My man Jeremy 😘
@mariembuenaventura1278
4 жыл бұрын
Hi, Mr. Jeremy do you have a tutorial for manually creating a patch cord for SC to SC type Single mode fiber? Maybe on Cbt nuggets?
@Vinoth193155
4 жыл бұрын
Love you Jeremy 😊
@markarca6360
4 жыл бұрын
GPON does not rely on pairs of fibers. It uses one wavelength to transmit and another one to receive.
@glonch
4 жыл бұрын
Great video... IDF/MDF - F=Frame as I remember it...
@PigMan9080
4 жыл бұрын
I have a real world question. In the building where my company is there’s 2 network closets. The isp fiber with single mode fiber runs to the closet 1 but my company network ports are wired to closet 2. The 2 rooms are bridge with a mulit mode fiber. After the installation I couldn’t figure out how to convert the single mode fiber to use the existing multi mode fiber. What would be the solution for this? Needless to say we paid someone to wire a new Ethernet cable across the two rooms
@coffeegonewrong
4 жыл бұрын
You have a few choices. Usually the ISP will install their gear where the fiber terminates, then you ask them for a connection out on multi-mode. Most business ISP sales reps live for this kind of work, it lets them use phrases like "Solution Provider" or "Value-Add". Expect them to pivot to the "How else can we help you" conversation afterwards. The ISP may also just run SMF to the other closet and simplify your life later. If the ISP connection is just a fiber then look for a media converter. Or, if you have a spare switch with two SFP ports you can use that. The media converter will be cheaper and won't complicate network designs though.
@zackgudal6110
4 жыл бұрын
I got a question....im new to all this but seeing Cisco and how many bath you can take from security to voice to even datacenter i was wondering which one is the best to start with after taking router and switch (if i choose to avoid ccie)
@wiziek
4 жыл бұрын
This is rather dumb question, this is like asking what driving license you should get, for cars, motorbikes, maybe for truck buses or just start into being aircraft or boat pilot... There is no more CCNA R&S, there is only single one CCNA and you choose different specialisations at CCNP lvl, also there is no voice, instead we have collaboration path(video, voice, unified communications). I don't know with what you want to work but you could google all of it yet you didn't do anything.
@tilikumtim5562
4 жыл бұрын
Ignore the rude. guy. Nothing wrong with your question. I would say just focus on the CCNA and nothing else right now. If you want to look at the options post-CCNA check here for the exam options: www.cisco.com/c/en/us/training-events/training-certifications/certifications.html#~certifications Other than the CCNA, there are 2 other opions at the 'Associate' level (DevNet and CyberOps), which may interest you, or you just can go onto the CCNP Professional level exams. Your choice really depends on your line of work and what interests you the most.
@wiziek
4 жыл бұрын
@@tilikumtim5562 Rude guy? We should tell him what to pursue and give him information like he cant use Google himself? Both of you wont get far with that spoon-feeding attitude.
@tilikumtim5562
4 жыл бұрын
@@wiziek My 16 years in IT is going fine thanks. I feel sorry for anyone that has to work alongside you though with that attitude.
@techevangelist8373
4 жыл бұрын
To be precise, Single mode cable is cheaper where as optics are costly. And it's the other way around for mutimode
@neutranofficial7788
4 жыл бұрын
Hi
@samucancld
2 жыл бұрын
GGGREAT VIDEO
@johnschroeder3072
3 жыл бұрын
Both single mode and multi mode fibre are glass fibres just with different core sizes. THEY ARE NOT PLASTIC FIBRES!
@ShivamSingh-yw5fm
4 жыл бұрын
Not more than 89° bends
@mertcanguldu7063
2 жыл бұрын
Music on the background it's very loud and annoying
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