Time
3 hours 35 minutes
Difficulty
Intermediate
CEU/CPE
4

Video Transcription

00:01
Hello there. And welcome to this exclusive CNP switch. 201 15 example. Of course. My name is Philip. Mention Ali.
00:08
And today we're gonna focus on you DLD Whenever we have uni directional failures occurring within our network, we would want to remedy it immediately.
00:18
U t l e r a unit directional leak detection addresses this concern for us.
00:23
It's only a two protocol that detects unit. Directionally, this is useful when you have fiber connections within our network.
00:30
I need for instance, one end of the transceiver is sending, but other end is not receiving.
00:36
Well, then you really would be able to assist us in detective the uni directional link
00:41
No
00:42
Julia Leak and also work on copper into faces. You really can operate in one off two moles
00:49
we have the normal, which is a default. More
00:52
is gonna place the ports bi directional state, the unknown distant costume, potential problems for upper air protocols. And then there is the aggressive mode which places the ports operational state in error, disabled.
01:06
This is very useful for us engineers. Whenever we're checking reports status when you see our disabled, we know immediately that's a red flag
01:15
Here we have a list of various you really commands. We can use
01:19
the forest. Come on. If you want a few the current you DLD settings we can use show you d l e
01:25
every one of you you daily neighbors
01:27
become musical man show you the Ellie on tag on the keyword neighbors.
01:33
If we want to enable you dearly globally, we would use a command You DLD enable
01:38
This is going to enable you really in normal mode
01:42
or if you prefer aggressive mood, we can use instead
01:46
you DLD aggressive
01:48
And if we want to enable you to Delhi on the port level we would go into the port sub configuration mood
01:53
and then he would issue the command on this is going to enable you dearly in normal mode.
02:00
Likewise, if we want to enable you DLD and aggressive mood at the port level, we would say you Delhi port aggressive.
02:08
No report has been disabled by you daily. We can issue a command you d l e reset
02:15
or we can go into the port sub configuration level
02:21
And then we would say shot on there. No shot or the last option
02:24
we would take off you DLD but you see, in the know you d l report common And then we would reapply back the you really settings on the port.
02:32
I'm gonna bring up a lot now so we can see how we would implement you DLD in our switch network.
02:38
Well, four is very fighting you. The LD seconds
02:42
on this output, it's telling us view the LD
02:46
it's currently disabled.
02:47
As you can see, each of the inter office
02:51
the administrative configuration settings, is currently disabled
02:54
and like or one connects the n Y court
02:59
on the fast eating it 10 24.
03:02
So that's enable
03:05
you DLD
03:06
on fire. Signet 10 24
03:08
on N Y one on N Y two.
03:12
No, if I press enter,
03:14
is that enable you DLD
03:15
in the normal mode?
03:16
Let's enable it in a normal moment for us. And then we will check all the aggressive more Knicks
03:22
saying this show you'd really common, I thought known the interface which I want to check on and now we can see the administrative configuration setting
03:30
is enabled.
03:32
Note also that bi directional status set on because we need to turn on you DLD
03:38
and the far in device
03:43
Gary, go Now we have more information
03:46
since I've started on you DLD onboard devices. Additionally, we can see the bi directional state
03:52
There's no set The bi directional This is what we would want to see in normal operation Presently we can see and why core one sees and white Court two on the fast Ignat 106 24 interface We concede states saves my directional So now I'm gonna disable the port on n Y court
04:10
That's happened. I'll go back to an awake or one.
04:13
There we go The bi directional state has been changed the unknown So now let's re enable the port and we'll turn on aggressive mood Very cool. So no, the bi directional state has returned to bi directional. So at the keyword aggressive
04:28
let's rerun show you the LD common with the interface on note
04:32
the operation escape as the other keywords in aggressive mood and if the school are back of it, the operational states simply had enabled in normal mood shut down late in the season and White Court two on over and and white core one. Now we consider bi directional state has been changed The unknown. I also need to enable
04:50
that dress it more so we can also use We show you the elderly neighbor. Come on.
04:59
And this would also tell us was the current beauty Ellie states
05:02
here we can see both neighbors are bidirectional. Try shot not only the peace away
05:08
or one,
05:12
they would see the neighbors when the way
05:15
would simply see our the stable. When we do, show it to this stuff us whenever you know, directional in clear with a car in aggressive mood. If you look at the example real quickly
05:29
Yeah, your example. Simplicity is turn on the u T l e
05:35
our options. Were you DLD when we look on signal
05:39
change Unless it's
05:41
timer often
05:43
between senate of messages
05:45
we want to set up We've been separated seconds. We can also develop New Delhi.
05:49
That's the events.
05:55
Here we go.
05:56
Now we can see the box for you the Ellie and see the neighbor discovery between the devices.
06:04
All right, let's go back to this place.
06:06
Which command enables you DLD in aggressive mood on in trapeze, eh?
06:13
Been going today interface and easy to command you DLD enable
06:16
Orly We're going to the interface. And he said the commander knew DLD or aggressive
06:23
or a C on global conflagration. What? We see the command you DLD
06:28
port aggressive followed light and
06:30
and seriously, we were going to the interfere stop configuration Lord.
06:35
And then you see the command beauty Ellie port aggressive.
06:42
In the day's lecture,
06:44
we focused on uni directional ing failures
06:46
which are prevalent in switch environments.
06:50
When we look at how we would deal unit directionally failures
06:54
by using your reality,
06:56
this was followed up by a demo of how we would implement you DLD in a switch.
07:00
And finally, we ended with dearest
07:03
shock months verify that you d l e is properly set up
07:09
and we ended up running. Somebody loves
07:12
to see you, the LD. In action
07:14
when it's establishing a Navy ship relationship with another device
07:18
in the next video, we'll dive into villains. Artie, clearly,
07:23
we're gonna look at how we would set up villains at an access port level. This is Phil intentionally on. I want to thank you for choosing savory

Up Next

CCNP Switch - 300-115

This course is engineered to prepare you for your CISCO Certified Network Professional CCNP Switch 300 - 115. In this course, we will cover all the main domains present in the current version of the CCNP Exam which are centered around infrastructure security and services and layer 2 technologies.

Instructed By

Instructor Profile Image
Philip Inshanally
Network Administrator
Instructor