WEBVTT

1
00:00.000 --> 00:00.500 align:middle line:84%


2
00:00.500 --> 00:03.180 align:middle line:90%
A long time ago, we learned
as one of our early principles

3
00:03.180 --> 00:05.580 align:middle line:90%
of network design and
also network control

4
00:05.580 --> 00:07.427 align:middle line:90%
is that we want to
take large networks

5
00:07.427 --> 00:09.010 align:middle line:90%
and break them up
into smaller chunks,

6
00:09.010 --> 00:11.280 align:middle line:90%
not just to reduce
broadcast domains, but also

7
00:11.280 --> 00:13.323 align:middle line:90%
so that we can force
traffic through routers

8
00:13.323 --> 00:15.490 align:middle line:90%
and we can have access
controllers on those routers.

9
00:15.490 --> 00:18.990 align:middle line:90%
Now, we have come a long
way since those early ideas

10
00:18.990 --> 00:21.780 align:middle line:90%
because we now have the
need in most networks

11
00:21.780 --> 00:25.410 align:middle line:90%
to take traffic within
a VLAN and microsegment

12
00:25.410 --> 00:27.840 align:middle line:90%
that or control the
traffic between one port

13
00:27.840 --> 00:30.780 align:middle line:90%
here and other port here in
the same logical network.
WEBVTT
X-TIMESTAMP-MAP=LOCAL:00:00:00.000,MPEGTS:900000

13
00:27.840 --> 00:30.780 align:middle line:90%
here and other port here in
the same logical network.

14
00:30.780 --> 00:32.430 align:middle line:90%
There are several
techniques that we

15
00:32.430 --> 00:34.950 align:middle line:90%
could use to implement
that including TrustSec,

16
00:34.950 --> 00:38.135 align:middle line:90%
but one way that we can
control traffic within a VLAN,

17
00:38.135 --> 00:39.510 align:middle line:90%
to control what
ports are allowed

18
00:39.510 --> 00:41.340 align:middle line:90%
to talk to what other
ports, is by using

19
00:41.340 --> 00:44.158 align:middle line:90%
the concept of a
private VLAN, and that's

20
00:44.158 --> 00:45.700 align:middle line:90%
what this set of
videos is all about.

21
00:45.700 --> 00:47.880 align:middle line:90%
So I look forward to
seeing you in the next one

22
00:47.880 --> 00:49.860 align:middle line:90%
as we take a look at the
bigger picture of what

23
00:49.860 --> 00:51.750 align:middle line:90%
is a private VLAN,
what are its parts,

24
00:51.750 --> 00:54.480 align:middle line:90%
and then proceed through
configuring and verifying it

25
00:54.480 --> 00:55.080 align:middle line:84%
together.

26
00:55.080 --> 00:57.980 align:middle line:84%
I'll see you in the next video.