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@9cboomer720 16 сағат бұрын
@Network Admin Life: Good afternoon. I'm a Network Admin in the military. Getting out soon. Have a few questions to ask you if you don't mind... Was curious to know what vendor specific routers and switches you've worked on recently out there? I've been trained mostly on Cisco. But have touched Juniper, and Brocade when I went through training initially (years ago lol). Any big changes you've seen between 2020-2024? What are some things you had to adapt to in that time as a Network Admin today? Has AI advancement helped or hurt your career as a Network Admin? I have other questions. But I'll lead up with them
@NetworkAdminLife 12 сағат бұрын
First of all thank you for your service in whatever nation's military you have been serving in. I've been solely managing Extreme Networks equipment for the last 15 years or so. The concepts are the same however, only the commands differ. Knowing Cisco is a better bet over all. Many more employers look for Cisco expertise. If you can you may want to add a security certification. It will give you better marketability. However, having managed a switching environment in the military will help immensely as well. God bless!
@OwenC1 2 күн бұрын
All of you data centers guys drive me nuts lol. Just today I found out that a dcops guy ran a upc sc jumper to an apc sc panel. And was all confused why his otdr shot ended at 200m. Scope and clean every single time you remove the fiber. If the fiber touches air, clean it. There’s junk floating around everywhere regardless of how good your filtration is. Even when the fiber is plugged in, dust can still encroach on the mating surface.
@NetworkAdminLife 12 сағат бұрын
Our edge closets are VERY dusty. Most of them give me no problem but this one. Yeah, I really need the scope. God bless!
@stevemoores8042 4 күн бұрын
Try using extreme network's command "show port transceiver information detail" to see the optical RX levels, I'm a Cisco bigot so not sure about extreme but in my Cisco world, a greater negative number means less power received, and it appears extreme is much the same. Clean fiber spans that have the lowest signal (greater negative number) and those links that go down unexpectedly may well stop doing that (they may operating close to the limit). You should get an inspection microscope if you don't have one (they are inexpensive) and then you can see the dirt you are cleaning (compare before and after cleaning) but what matters is how many photons that are getting through. Using the error rates is not as reliable because a link that is just barely enough signal to stay up and living on the edge may run error free (until it doesn't). I'm used to seeing normal values of - 2 or - 3 dBm loss (over many kilometers), a dirty cable may be - 5, - 15.5 is the low alarm threshold and at - 16 the link will go down, - 40 is shown when a fiber patch is disconnected. NOTE: In show ports transceiver information output, the Rx/Tx power values shown may be +/- 3dB from the actual value due to the limitation of SFP and the accuracy depends on the SFP vendor. For accurate power measurement, it is recommended to use a power meter but the advantage of reading the likely less accurate values from the SFP is you don't need to disrupt the span. Hope this helps! Take care my friend and God bless.
@ZippyDooDa435 3 күн бұрын
Have you used other vendors? Most engineers I know who are Cisco shills are simply inexperienced with other vendors and tend to be close minded.
@NetworkAdminLife 2 күн бұрын
Great advice. I'll look into a scope. What would you make of these numbers? Core switch optical: ---------------------------------------------------------------------------------------------------- LOW_ALARM LOW_WARN ACTUAL HIGH_WARN HIGH_ALARM THRESHOLD THRESHOLD THRESHOLD VALUE THRESHOLD THRESHOLD STATUS ---------------------------------------------------------------------------------------------------- TxPower(dBm) -12.2000 -8.2000 -2.6000 0.5000 3.5000 Normal RxPower(dBm) -18.4000 -14.4000 -0.5000 0.5000 3.5000 Normal Edge switch optical: Tx Power (dBm) : -2.20 Status : Normal Low Warn Threshold : -8.00 High Warn Threshold : 0.50 Low Alarm Threshold : -8.97 High Alarm Threshold : 1.29 Tx DDM : N/A Tx DDM Last Gasp : N/A Rx Power (dBm) : -4.24 Status : Normal Low Warn Threshold : -16.25 High Warn Threshold : 1.76 Low Alarm Threshold : -18.01 High Alarm Threshold : 3.01 Rx DDM : N/A Rx DDM Last Gasp : N/A
@dataplatter 6 күн бұрын
OTDR?
@bradwilmot5066 5 күн бұрын
Optical Time Domain Reflectometer - used for measuring distance over fiber (total distance, distance to fault, etc.)
@NetworkAdminLife 5 күн бұрын
Really wish I had one. I'll have to see if Engineering has one. God bless!
@PE4Doers 6 күн бұрын
Great video, as usual 🙂 God Bless
@NetworkAdminLife 5 күн бұрын
Thanks for watching! God bless!
@OlSnuffy 6 күн бұрын
Curious...why is there liquid in that room?
@NetworkAdminLife 5 күн бұрын
You got me. Wasn't the smartest thing putting my coffee on top of that high voltage transformer. Especially since I spilled my coffee in church! Point taken. God bless!
@malikthedruid5995 6 күн бұрын
Going to college for Network administration right now! What did you do to get you to this point?
@NetworkAdminLife 5 күн бұрын
Go back and watch my very first video and I explain the entire journey from knowing nothing about networking to here. God bless!
@alexanderg9106 6 күн бұрын
Another idear let the fiber after the clean measure. If it is om2 or om3. Hat some issue's with higher speeds and trunking if one is producing a lot of crc.
@NetworkAdminLife 5 күн бұрын
It's OM4 and yes, it's the trunks giving me the issues. I have one other place to check where fibers are cross patched in another rack. God bless!
6 күн бұрын
as a FE i have seen this kind of fault many times. dirty fibers can be the fault, but i always check the connectors inside the patchpanel, many times the tech who built it didnt put in the connector all the way. As mentioned before, a powermeter is an extreme good tool to have when looking for faults. Also faultlocater ( red laser pen).
@alexanderg9106 6 күн бұрын
That why you call it clean and patch 😅
@NetworkAdminLife 5 күн бұрын
I think you're right about the connectors on the back side of the patch panel. I do have the red laser pen. We connect it to the far end of the fiber and then shine it on a piece of paper and use our calibrated mk.1 eyeballs to see if there is a noticeable difference in light levels. Not very scientific. God bless!
5 күн бұрын
@@alexanderg9106 :) here in sweden we inspect and clean if needed as standard procedure. But normaly whit CRC failure its a dirty connector or high attenuation in the span.
@ZippyDooDa435 3 күн бұрын
@@NetworkAdminLifecalled a VFL, Visual Fault Locator. Super useful!
@jeroenklvr 6 күн бұрын
scope it. Clean it. Scope it. Clean it again if needed. Scope it. Otherwise, the patchcable in the trashcan. And use a powermeter. And an OTDR. It's always fun with fibers.
@knightjocke 6 күн бұрын
Hard to justify the scope when it costs like a whole switch. But the general rule is to always inspect before you connect
@JasonsLabVideos 6 күн бұрын
@@knightjocke A good OTDR is about 10k :(. so yeah !
@NetworkAdminLife 5 күн бұрын
I'm starting to learn that. Our fiber installation has been around for a while but seems like we have a few fiber pairs lately that just stopped working as good as they used to. I'll keep at it. Are those clicker cleaners from Amazon good enough? Any other cleaning method you'd recommend? God bless!
@NetworkAdminLife 5 күн бұрын
Yeah, and we don't really have the expertise to use one here. It would be hard to justify the expense. God bless!
@jeroenklvr 2 күн бұрын
@@NetworkAdminLife you can also use some cleasing cassettes where you can slide the fiber tip on it. This also can work. And if that is not good enough, there is also cleaning alcohol in combination with special fiber cleaning tissues. We have all of these. But the cleaning pen will do the trick most of the time. We also have an scope, powermeter, dwdm powermeter and an otdr to troubleshoot fibers at our campus. But repair work we dont do ourselves unfortunately.
@tomrandstrom8363 6 күн бұрын
👍
@johnnythe3rd182 10 күн бұрын
Your just a true blessing that keeps on blessing us with your daily Admin duties. I believe you do a great job, and like I said before, following your daily routine inspires me to continue learning the Network Admin field. Moving up from a basic IT Technician is a great step for me. When we pass by Cali, I hope we could have a coffee together 🙏🏾
@NetworkAdminLife 10 күн бұрын
If you're ever driving down the I-5 corridor in the Central Valley let me know. Happy to share a cup. God bless!
@johnnythe3rd182 10 күн бұрын
@@NetworkAdminLife I hope 🙏🏾 all is well for you and you family in Cali right now with these fires. Take care, and stay safe.
@NetworkAdminLife 9 күн бұрын
@@johnnythe3rd182 Thank you for that. However, I am hundreds of miles away from those fires. These people all had their fire insurance cancelled recently and have now lost everything they own. Literally thousands of homes. They need your prayers. God bless!
@johnnythe3rd182 8 күн бұрын
@NetworkAdminLife 🙏🏾
@No-user-g4u 12 күн бұрын
Is it the concept of converting a all physical unit into a logical unit I mean configuring a management inerface to act as master one
@NetworkAdminLife 12 күн бұрын
Well, it's more like adding more ports to your existing switch. Each new switch that is added to the stack becomes like an additional module in the existing switch. So think of the original switch as having one slot with 48 network ports, then you add a switch to the stack and now it's a switch with two slots of 48 ports. And the management port stays on the original switch in the stack, also called the "master". God bless!
@BilalHeuser1 13 күн бұрын
Can you have full-duplex communication on a single fiber? Or, does that two fibers? (One for send, one for receive)
@BradMottram 13 күн бұрын
You can use a single piece of fibre to transmit and receive at Full Duplex. The optics are generally called BiDi (BiDirectional) they transmit and receive on different wavelengths which is why you are able to use a single fibre. BiDi optics come as a matched pair for this reason.
@NetworkAdminLife 12 күн бұрын
Yup. What @BradMottram said. We use two fiber optics because they are generally cheaper. I think you can go longer distances when you use two fibers for full duplex. Sounds like have some stellar folks who know more about fiber optics than I do. They can correct me. God bless!
@NetworkAdminLife 12 күн бұрын
Thanks for the info! God bless!
@Nejtak853 13 күн бұрын
Love seeing your videoes from Afghanistan! 🙌
@NetworkAdminLife 12 күн бұрын
Wonderful, glad to have you along. My trainee, Tariq's family is from Afghanistan. He speaks fluent Urdu and is a heck of a nice guy. God bless!
@Jamesaepp 13 күн бұрын
I'm kind of mixed on the whole IP address revealing debate (more broadly, not just this channel). On the one hand, security through obscurity is garbage. On the other hand, there's no reason to make reconnaissance easier for someone who *does* want into your network with mal intent. On the other other hand, it's not that hard to figure out a network layout. There's software built to do just that.
@NetworkAdminLife 12 күн бұрын
Exactly the battle that goes on in my head. I trust my firewall but on the other hand, I don't trust it. So to err on the side of caution I have to hid a lot more than I would like to. God bless!
@anthonyruffing6479 13 күн бұрын
ive been subscribed for a while and watched videos here and there. I must say your videos continue to motivate me on my journey towards become a Network Engineer thank you for showing what a real work life is.
@NetworkAdminLife 12 күн бұрын
I am glad that my videos are helpful! That's exactly why I started this channel. Not all network admin jobs are exactly like mine. But this is one of the jobs that are out there. Just wanted to show folks that things aren't always like they teach you in school. God bless!
@kylejoel87 13 күн бұрын
Nice let's go and hack a 10. network when that's a private IP network address (RFC1918). It is not a public facing IP address. I would show all my IP addresses and VLANS. Its not going to get anyone anywhere. Love your videos and content. Keep up the hard work 💪👍
@SyberPrepper 13 күн бұрын
Happy New Year. If you have a lot of APs, how do you make sure they don't interfere with each other. Can you use software in the switches or do you have specialized WIFI equipment?
@NetworkAdminLife 12 күн бұрын
Great question. These APs will scan the channels it uses to see which ones are in use nearby and how far away neighboring stations are. It will try to select a channel that is not in use. For the 5 gig radio this is fairly easy but for the 2 gig radio we only have a choice of 3 channels. Again, we try to let the AP work out which channel it wants to use but for the 2 gig radio many times it will select a channel that is in use by its neighbor and we have to manually adjust that. Otherwise we get something called co-channel interference. A bad thing. God bless!
@kkpdk 13 күн бұрын
I had a situation like the eng. central. plant where it would involve tearing up a road. I ended up using bidi 10gbps optics and got the redundancy - I understand some people don't like them, but I got what I needed. (Yes, my org uses all of the RFC1918 spaces, with the exception of 192.168.0.0/21 to avoid colliding with vpn users' home networks.)
@jordantekelenburg 13 күн бұрын
As long as you don’t show your public IP
@jordantekelenburg 13 күн бұрын
You’re really gonna have to watch that when IPv6 is deployed
@NetworkAdminLife 12 күн бұрын
Not only nope but heck nope! This is why I talk about the firewalls but any configs I show are either scrubbed or don't have anything security related in them. Which, is very little. So, mostly just talk about what we did with the firewalls and no show and tell. God bless!
@jordantekelenburg 13 күн бұрын
As long as you don’t show your public IP
@JasonsLabVideos 13 күн бұрын
NICE NICE NICE! Always good to have redundancy !
@NetworkAdminLife 12 күн бұрын
Always have a backup! Especially on a campus as old as ours. God bless!
@ItTechinpractice 13 күн бұрын
Hello, thank you for this amazing video, always the highlight of the week. Greetings from snowy, cold Sweden - minus 20 degrees Celsius.
@NetworkAdminLife 12 күн бұрын
Thank you very much! Darn, that's cold! I'm convinced my family left Belgium 300 years ago due to the weather! God bless!
@bflnetworkengineer 13 күн бұрын
I could not agree more about exposing internal resource addressing, regardless of RFC1918 allocation. We've heard you mention over the years about logging in from home, hence a management VPN being accessible on the DMZ. The whole idea is to make life as difficult as possible and increase the time and effort a nefarious actor would need to learn about the network, if an intrusion was to occur. It's none of our business and I imagine most of us would agree with you. There's the old saying, loose lips sink ships. Carry on my friend and God Bless.
@NetworkAdminLife 12 күн бұрын
Amen! I couldn’t agree more! We do have MFA on our VPN and on all servers and network equipment internally. We're as secure as we can make ourselves but no sense tempting fate by showing a little too much. God bless!
@bflnetworkengineer 12 күн бұрын
@@NetworkAdminLife Mind you, the hospital has been very gracious over the years. It's so easy for folks to dismiss things like Hipaa, SOX and the list goes on. We're with ya Scott.
@corstian_ 13 күн бұрын
Happy new year Scott!
@NetworkAdminLife 12 күн бұрын
Happy new year and God bless!
@changwang7596 13 күн бұрын
Happy new year. Hope the new year and wifi project goes well!
@NetworkAdminLife 12 күн бұрын
Happy new year! As a matter of fact I just received the vendor's statement of work. I'm saving it for later in the morning to read over my coffee. Kind of like work-dessert! God bless!
@nrh_photography204 13 күн бұрын
Hi sir... How are you...?
@NetworkAdminLife 12 күн бұрын
Really, really old. God bless!
@MrShayjan 13 күн бұрын
Hi did you consider to use fabric Voss on that central switch?
@NetworkAdminLife 12 күн бұрын
Our vendor sold us on the concept. Our entire county was going to go to fabric but that project has stalled. I think there may be renewed interest soon. God bless!
@joerockhead7246 13 күн бұрын
grace and peace to you too. happy new year. i can''t believe it's 2025
@NetworkAdminLife 12 күн бұрын
Thank you and Happy New Year! As a child of the 70's I thought for sure we'd have flying cars and underwater cities by now. And where is that moon base we were promised? God bless!
@wahidulhossain5810 13 күн бұрын
❤Hello sir good morning sir how are you sir how is everyone in your house sir i want to talk to you. Sir your videos are very nice
@wiziek 13 күн бұрын
Are you insane?
@NetworkAdminLife 12 күн бұрын
So nice of you. God bless!
@NetworkAdminLife 12 күн бұрын
No, he's just eager. Love the enthusiasm. God bless!
@31qwoz 24 күн бұрын
Merry christmas all
@NetworkAdminLife 23 күн бұрын
Merry Christmas @31qwoz !
@MrJordiSoto 24 күн бұрын
Merry Christmas to you too!
@NetworkAdminLife 24 күн бұрын
Merry Christmas @MrJordiSoto!
@afinney88 24 күн бұрын
Have a great Christmas!
@NetworkAdminLife 24 күн бұрын
Merry Christmas @afinney88!
@rickorwig986 24 күн бұрын
Merry Christmas and a happy new year to you and yours!
@NetworkAdminLife 24 күн бұрын
Merry Christmas @rickorwig986!
@crooklyn673 24 күн бұрын
Wish you a Happy and Blessed Holidays to you and your Family
@NetworkAdminLife 24 күн бұрын
Merry Christmas @crooklyn673!
@Nothinglastsforever 24 күн бұрын
Merry Christmas!
@NetworkAdminLife 24 күн бұрын
Merry Christmas @Nothinglastsforever!
@networkdwarf 25 күн бұрын
Merry Christmas!
@NetworkAdminLife 24 күн бұрын
Merry Christmas @networkdwarf!
@rickmartin8262 25 күн бұрын
I'm a broadcast engineer. There are no holidays for tech support. Have a great one, brother.
@NetworkAdminLife 24 күн бұрын
Merry Christmas @rickmartin8262!
@rickmartin8262 24 күн бұрын
@@NetworkAdminLife Thanks, you too.
@josephjefferson6368 17 күн бұрын
You are a different kind of engineer. Yeah, I had that job for a short while. 'Had to work Christmas and the New Year.
@bflnetworkengineer 25 күн бұрын
Merry Christmas Scott! It's a real honor to consider you a virtual pal. I always look forward to my Sunday mornings watching your videos and sharing a cup of coffee with ya. May 2025 bring you, your family and my fellow Network Admin Life KZbinrs a happy new year. Again, Merry Christmas to you and your family and God Bless.~Bill
@NetworkAdminLife 24 күн бұрын
Merry Christmas @bflnetworkengineer!
@markp4289 25 күн бұрын
Merry Christmas
@NetworkAdminLife 24 күн бұрын
Merry Christmas @markp4289!
@Guitarrr01 25 күн бұрын
I was waiting for you to pan to the mouse 🖱 😆 Merry Christmas
@NetworkAdminLife 24 күн бұрын
Doh! I wish I had thought of that!! Merry Christmas @Guitarrr01!
@d3n4c3 25 күн бұрын
Merry Christmas!
@NetworkAdminLife 24 күн бұрын
Merry Christmas @d3n4c3!
@Jamie404notfound 25 күн бұрын
Merry Christmas and happy holidays boss! Hope you and yours have a happy time together ✝️👑
@NetworkAdminLife 24 күн бұрын
Merry Christmas @Jamie404notfound!
@ItTechinpractice 25 күн бұрын
Merry christmas from Sweden! I love your updates
@NetworkAdminLife 24 күн бұрын
Merry Christmas @Itprosweden!
@GLOMckiller 25 күн бұрын
I wish you and your family some pleasant and peaceful days! Merry Christmas!
@NetworkAdminLife 24 күн бұрын
Merry Christmas @GLOMckiller!
@jordantekelenburg 25 күн бұрын
40g optics are basically 4 10g links on the same fiber using wdm (it uses four different wavelengths of light)
@NetworkAdminLife 24 күн бұрын
Now that's something I didn't know. Thanks for that. God bless!
@jordantekelenburg 24 күн бұрын
@ u too, merry Christmas
@pfilip2346 25 күн бұрын
You too!
@NetworkAdminLife 24 күн бұрын
Merry Christmas @pfilip2346!
@WOPR_PC 25 күн бұрын
When I work in IT as a Network Admin this was my fav time of the year because I got a ton done without any end users needing help or having meetings. It was a time to finish up on server documents or maintenance or upgrading firmware on routers switches and firewalls. Usually I do these things after hours on a Tuesday but during the month of Dec its something I can do during the day. I use to blast music and wear shorts and a t-shirt and do my task without any issues. Awesome time!!
@NetworkAdminLife 24 күн бұрын
All of that is true. Merry Christmas @WOPR_PC!
@corstian_ 25 күн бұрын
Merry Christmas! Thank you for making these videos, really enjoyed them.
@NetworkAdminLife 24 күн бұрын
Thank you for that. Merry Christmas @corstian_!