do not design your home network this way
ever
ever
what's up guys welcome back to the
channel i'm mike this is the ultimate
tech hub thank you for joining us i
really appreciate it you guys are
awesome once again we're back with
another awesome networking video it's
all because of you the viewer and
subscriber we get a lot of questions in
the comments emails from our patreon
supporters and even our instagram
followers and the majority of these
questions are about home networking
setups and to be more precise home
networking setups that do not work
for instance i get emails like this all
the time hey mike i set up my network
and i have no internet connection
i don't know why i plug the switch into
the modem and then the router into the
switch
[Music]
or i get other questions like this i
plug the router into my modem and then
the router into my router and then a
switch into that router and then another
router to that switch
and my network's not working correctly
and i could go on and on but i'm not
going to bore you with it but to be nice
about this those networks suck and
they're not done correctly but don't
worry guys i'm here to help you that's
what this channel is for
so the first thing you don't want to do
when designing a home network is plug a
switch into your modem
that's a no no and believe it or not i
get a lot of emails from people asking
me if they can do this and i always say
the same thing
hell no
plugging a switching to a modem is a big
no-no and let me tell you why a switch
cannot perform dhcp or nat or has
firewalls or port forwarding or vlans or
can't be managed
nothing and everything i said the switch
can't do a router can do so always plug
a router into a modem
then the switch into the router there is
no benefit to plugging a switch into a
modem none well maybe one
cost because the switch is much cheaper
than a router but that's it okay the
second thing you don't want to do when
designing a home network is daisy chain
your switches layer two switches let me
tell you why
while daisy chaining switches does work
there is no redundancy and in networking
redundancy is very important if you
daisy chain four switches together
and the second switch goes out
everything beyond that goes out
total network failure and while that's
not a very big deal for a home network
because if you're watching hulu or
netflix or plex
big deal it goes out but having a small
business and the network goes out that
costs you money and that's why small
businesses have redundancy or should
have redundancy now i've seen many small
businesses that look like home networks
they have a router a switch and that's
it but there's no redundancy so if that
switch goes out everything goes out and
if you're daisy chaining switches and a
cable breaks or a switch goes out
then you have a big problem
so how do you fix this what's the key
for redundancy well i'm gonna tell you
first let's talk about two things access
layer and distribution layer layer two
switches or unmanaged switches are in
the access layer and everything
connected to these switches is also in
the access layer computers consoles tvs
whatever now above the access layer is
the distribution layer and that's where
redundancy comes from in the
distribution layer you want a layer 3
switch and you're probably asking what
the heck's a layer 3 switch
a layer 3 switch can do everything a
layer 2 switch can't however there's a
price to be paid because those switches
are very expensive they're beefy and
they can do a lot of stuff but you're
going to pay a lot of money but in a
small business setting a layer 3 switch
is a must and i'll have pricing here for
layer 3 switches and it may shock you
some are very expensive so you have to
weigh the price versus the benefits and
for a simple home network a cheap layer
3 switch will do now let's talk about
how this all works so you have a modem
connected to a router connected to your
layer 3 switch now from the layer 3
switch is connected to all of your layer
2 switches
now for redundancy purposes
you may want to have two cables going
from the layer 2 switch to the layer 3
switch just in case one cable goes out
that's call redundancy so in a perfect
world you're going to have two cables
going from the layer 2 switch to the
layer 3 switch this way if one cable
goes out
your switch still works that's called
redundancy
redundancy
redundancy and like i said before
redundancy is the key to a reliable
network
so the more redundancy you have the
better for your network because the last
thing you want is a single point of
failure then you can't watch your
netflix anymore or play call of duty
online or shop on amazon and that's how
it all works so two things again never
plug a switch into a modem and never
daisy chain your switches so guys once
again i hope this video helps you
understand what you shouldn't do when
designing your home network
if you do have any questions leave in
the comments below i answer all
questions eventually and if you're part
of a patreon which is two dollars a
month i answer your questions
automatically so that's a great benefit
for patreon so guys we're all done here
thank you for watching i really
appreciate it you guys are awesome i'll
see you in the next video real soon
peace
you
