1
00:00:01,370 --> 00:00:03,530
Now you could also match on other values.

2
00:00:03,530 --> 00:00:08,360
So notice you could match on IP precedence.

3
00:00:09,270 --> 00:00:14,070
And specify values such as zero one, two, three, four, five, six or seven.

4
00:00:14,280 --> 00:00:16,560
These values also have names.

5
00:00:16,560 --> 00:00:21,870
So as an example, if I specify three here and then type do show run.

6
00:00:23,820 --> 00:00:25,770
Notice that shows up as three.

7
00:00:26,100 --> 00:00:28,590
But I could also specify flesh.

8
00:00:29,580 --> 00:00:33,360
That's also a valid way to match.

9
00:00:33,570 --> 00:00:41,580
That's very similar to using Port 23 or the word telnet in an access list.

10
00:00:41,880 --> 00:00:44,760
So you can either use the word or the number.

11
00:00:46,010 --> 00:00:48,470
To specify the traffic that you're going to match on.

12
00:00:52,080 --> 00:00:57,840
Notice we also have a cost value that we can match on, so we could specify a cost value of five.

13
00:00:58,200 --> 00:01:00,060
There are many other options available here.

14
00:01:00,060 --> 00:01:00,960
So match.

15
00:01:02,530 --> 00:01:04,269
And let's say application.

16
00:01:04,750 --> 00:01:10,060
And here we can match on specific applications such as RTP or FX 3 to 3.

17
00:01:10,240 --> 00:01:13,930
We can use network based application recognition.

18
00:01:15,130 --> 00:01:21,580
To match on higher level protocols rather than just matching on layer two or layer three, we could

19
00:01:21,580 --> 00:01:24,310
match on higher layers of the OCI model.

20
00:01:24,580 --> 00:01:27,310
We can also match MPLS values.

21
00:01:28,500 --> 00:01:32,910
So we can match experimental values in the range 0 to 7.

22
00:01:33,300 --> 00:01:36,720
So as an example, we could match experimental value five.

23
00:01:38,120 --> 00:01:41,270
Now, once you've matched on traffic, you need to do something with it.

24
00:01:41,780 --> 00:01:50,260
So you either need to prioritize it or rate it, limit it or queue it or delay it or drop it as an example.

25
00:01:50,270 --> 00:01:54,500
And that's what some of the other mechanisms do on routers and switches.

26
00:01:54,740 --> 00:02:00,170
Once you've classified or matched on traffic, what are you going to do with that traffic?

27
00:02:00,380 --> 00:02:05,570
As an example, if you've got a first class boarding ticket, you may go to the left door.

28
00:02:05,570 --> 00:02:10,160
But if you've got an economy class ticket, you go to the right door and you get a different quality

29
00:02:10,160 --> 00:02:14,360
of service and a different experience based on the ticket that you hold.