Hello and welcome.
My name is Keith Barker
and in networks it's super common to have different subnets
for different types of computers.
You may have, for example, some servers in one subnet.
You may have some clients in another
and some IOT devices in yet another.
And in a typical layer two switch network, behind each
of those layer three subnets would also be a layer two VLAN
associated with that IP addressing space for that subnet.
So among some of the reasons
for doing subnetting is one is we don't wanna have a single
subnet with one giant broadcast domain WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
subnet with one giant broadcast domain
with thousands of devices on it.
That's not very efficient.
Or we may have multiple tenants
that are sharing our address space.
We wanna be able to control which devices can talk
to each other within that space.
For example, customer one over here and a couple subnets
and customer two over here
and customer three at over here
with a couple of different subnets.
And then being able to control back
and forth which traffic is able to be seen
by which other subnets.
Now traditionally, and I mean for the last three
or four decades, we've been doing that most
of the time in the physical infrastructure with VLANs WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
of the time in the physical infrastructure with VLANs
and either physical
or logical layer three routed interfaces to move
that traffic back and forth.
However, if we have NSX, we can now do that logical routing
between multiple subnets.
We can do that logically, in the gateway function
inside of NSX.
So in this skill we get to not only introduce that concept
of doing the logical routing in NSX,
but we're gonna put a game plan together
and then implement it.
And we're gonna start off with some of the basics
with something called a tier one logical gateway.
We'll take a look at before and WEBVTT X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000
We'll take a look at before and
after to see what changes happen.
And we'll also take a look at the logical routing
as a result of that, as a packet is being moved,
for example, from VM one over to VM two.
And our journey together continues in the next video.
And I'll see you there in just a moment.