there's nothing more annoying for me and my staff than troubleshooting Wi-Fi
issues so when Juniper Networks told us they wanted to sponsor a video featuring
the solution to our problems how could we possibly res like how do I go wrong
with that so they sent us over some of their ap43 Wi-Fi 6 access points and an
ex 4400 switch claiming they've done it
they' figured it out the future of networking and the hardware that's
impressive but the real star of the show is mar Mar Vis the virtual Network
assistant driven by missed AI Marvis
combines machine learning and AI with a conversational interface that
understands natural language queries this should save technicians hours of
time that would otherwise be spent checking dashboards and using other
troubleshooting tools certainly seems like a good idea but what I and probably
all of you also want to know is how smart is Marvis smarter than me probably
but we can't end the video here so we're going to have to try it
anyway so we started by casually installing two of their ap43 wireless
access points and these things are basically the bang inist I'm looking at
the data sheet here it's like limited lifetime warranty got a humidity and
pressure and temperature sensor built into it it's Wi-Fi 6 but not just that
it's 4x4 with four spatial streams
Dynamic packet capture automatic RF optimization high accuracy indoor
location so it has Bluetooth on it so you can actually tell exactly where
everything connected to it is it's crazy so once we were done installing a couple
of these we set up our wireless network and added a floor plan which was
surprisingly intuitive and easy to use given the ones that I have tried before
and now we're just going to go ahead and pull up the management dashboard which
you can see scales beautifully across my dual monitors maybe we'll just make it a
little bit smaller there we go that's more like
it there we go so this one has nobody
connected to it cuz James isn't even
here today and then this one right here has three look at that you wow you can
actually like see whoa that is exactly where look
that's exactly where plof is standing uh
oh so coming back to the floor plan we got a bit of a problem one of our APS is
flashing purple I click it wait oh is Jake not
done breaking it yet he's supposed to break it so that we can see how to fix
it it doesn't just like that's the problem that's the problem when you're
trying to do a video about like oh troubleshooting is that like usually
things work you know from juniper so you
have to kind of come up with contrived ways to break it on your own there it is
now it's broken thanks Jake it's broken
now now I'm not going to give too many details about how we're hand wavy fixing
this but I will say that this gave us a really solid clue as to where to look
and what we needed to do was dig into our DNS server in this case that's the
same box as our router and figure out well why the heck that access point
isn't actually getting an internet connection and it turns out that the
admin thanks Jake fat fingered a three
where there should have been a two so now what will probably happen in a
moment here is it's going to come back online let's try and use Marvis for this
I can't figure out how to I can't figure out how to reset it it should be working
now so let's see if Marvis can help me with it uh troubleshoot device James
desk AP oh that is so cool look at that
coverage heat map I like it now that we fixed the
problem I mean we still can't connect to it because like we can't tell it to
reboot itself and get new DHCP information because we're not connected
to it but fortunately look at this it's all like oh no lus I have a problem I am
blinking yellow six seven seven times
then we're going to go consult the handy key in the software and find out what
the devil that means oh look at that okay it still says no DNS response man
that is like so perfectly helpful to find the problem we had I'm just going
to go ahead and give it a quick unplug and replug it's funny how no matter how
much AI we add that's still the way to fix so many problems did you try turning
it off and turning it back on
again let's give it a sec
here wow red and orange and a bunch of
it's got RGB it has RG B on an access
point Juniper you madlads that's one
challenge down but of course what I want
to know is who's wasting network resources watching YouTube videos on
their phones when they should be watching YouTube videos on their
desktops I mean I don't actually care if they watch YouTube videos that's
scripted into the video by the by the writer but I mean it's sort of part of
our homework sometimes to watch YouTube videos but they should do it over a wire
instead of taking up air bandwidth so I can say the site name is
LMG uh can you tell me something you want to
troubleshoot okay um let's go with uh
okay he has a Galaxy A50 so I'm try
searching for that hey there we go cool
let's click some client insights wow all right yeah got a good solid
connection speed here and wow you know
I think my bigger concern is not actually your YouTube consumption here
plof how on Earth have you managed to do 211 megabytes of Reddit in the
last what what is this day who it's text plof that's my lunch
break that's your lunch oh I guess there's video on
Reddit now it's time to do our next challenge here and we're supposed to
click Second Challenge so this is a desktop computer that's actually right
on the other side of this window and we go in here and nothing is
immediately out of the ordinary but oh
connected time two seconds oh okay hold on client insights uhoh we've got 66
total client events with 15 of them bad so this is one of those things where
you're sitting at the help desk and someone's like oh I can't get on the Wi-Fi and you go well gee let me have a
look at your device here real quick Karen
and oh okay you got an authorization
failure over and over and over again I think you might have forgotten your
password so here's your password write
it down but actually don't write it down cuz that's even
dumber most of the time it's not this cut and dried though so you'll have
things like a problem device that's constantly disconnecting or running into
issues so that's where being able to sort by good client events neutral and
bad ones is is really really useful and you can grabb tons of great information
from the packet captures and Mist actually has this great Dynamic pcap
feature that's a blessing to anyone who's sick of trying to replicate issues
so it'll actually actively capture data when an error occurs and then store it
in the cloud meaning that you've already got the logs and you can access them
without having to go on site now let's head over to
roaming oh there it is roaming oh cool
okay so here's a common issue you can
actually see the roaming data between
your access points for that particular client so okay plof is usually at the
Mac desk and then I don't know maybe he had a meeting with James or something and connected to his AP and then he's
back on this one so you can sometimes
get into situations where you've got someone who keeps swapping bands to 2.4
GHz or they get terrible RSSI values
from certain APS and that's all nicely visualized for you uh or if you have a
device that keeps swapping back and forth from one AP to another which can
kind of like a high latency feeling for them or it can cause issues during video
calls something like this can really help you get to the bottom of something
funky that's going on of course what we
really want to know is can all of this save me or more accurately Jake time
well RPS are hooked up to an ex 4400 switch which offers flow-based Telemetry
power over Ethernet PE Plus+ and fast PoE micro segmentation and endtoend
campus fabric for a ton of scalability so what this means for our next test is
that all the extra Telemetry should be able to tell us exactly what's going
wrong without us having to go take a look for our
ourselves and what's supposed to be the problem with this one oh ha I could have
figured that out if I had just actually clicked on the thing yes we have 22 bad
DNS failures fantastic now a common mistake when
setting up a new mobile device on a network is just entering the DNS
credentials in correctly you might think you entered it correctly while you're
just just following instructions famous last words but unfortunately you were
wrong I I dream of the day when more it
tasks can be handed off to someone less experienced and there's like me and
there's zero worry about the network going down because of a rookie mistakes
wrong permissions client can't connect Network's suddenly down so with Marvis
and Juniper Networks the idea is that your team can leverage M AI to
proactively notify and correct issues before you get a ticket enabling your
technicians to look like Heroes so thanks Juniper for hooking us up and
giving us an exclusive look at all of maris's newest features if you guys are
an IT professional looking for an easier solution let us know in the comments and
if you like this video make sure you check out our horrible server deployment
from last year it'll definitely make you cringe your whole face will fall off
from cringe it will go numb and then fall off