Hello there. And welcome to this exclusive CNP switch. 201 15 example. Of course. My name is Philip. Mention Ali.
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.
U t l e r a unit directional leak detection addresses this concern for us.
It's only a two protocol that detects unit. Directionally, this is useful when you have fiber connections within our network.
I need for instance, one end of the transceiver is sending, but other end is not receiving.
Well, then you really would be able to assist us in detective the uni directional link
Julia Leak and also work on copper into faces. You really can operate in one off two moles
we have the normal, which is a default. More
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.
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
Here we have a list of various you really commands. We can use
the forest. Come on. If you want a few the current you DLD settings we can use show you d l e
every one of you you daily neighbors
become musical man show you the Ellie on tag on the keyword neighbors.
If we want to enable you dearly globally, we would use a command You DLD enable
This is going to enable you really in normal mode
or if you prefer aggressive mood, we can use instead
And if we want to enable you to Delhi on the port level we would go into the port sub configuration mood
and then he would issue the command on this is going to enable you dearly in normal mode.
Likewise, if we want to enable you DLD and aggressive mood at the port level, we would say you Delhi port aggressive.
No report has been disabled by you daily. We can issue a command you d l e reset
or we can go into the port sub configuration level
And then we would say shot on there. No shot or the last option
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.
I'm gonna bring up a lot now so we can see how we would implement you DLD in our switch network.
Well, four is very fighting you. The LD seconds
on this output, it's telling us view the LD
it's currently disabled.
As you can see, each of the inter office
the administrative configuration settings, is currently disabled
and like or one connects the n Y court
on the fast eating it 10 24.
on fire. Signet 10 24
on N Y one on N Y two.
No, if I press enter,
is that enable you DLD
Let's enable it in a normal moment for us. And then we will check all the aggressive more Knicks
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
Note also that bi directional status set on because we need to turn on you DLD
and the far in device
Gary, go Now we have more information
since I've started on you DLD onboard devices. Additionally, we can see the bi directional state
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
That's happened. I'll go back to an awake or one.
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
let's rerun show you the LD common with the interface on note
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
that dress it more so we can also use We show you the elderly neighbor. Come on.
And this would also tell us was the current beauty Ellie states
here we can see both neighbors are bidirectional. Try shot not only the peace away
they would see the neighbors when the way
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
Yeah, your example. Simplicity is turn on the u T l e
our options. Were you DLD when we look on signal
between senate of messages
we want to set up We've been separated seconds. We can also develop New Delhi.
Now we can see the box for you the Ellie and see the neighbor discovery between the devices.
All right, let's go back to this place.
Which command enables you DLD in aggressive mood on in trapeze, eh?
Been going today interface and easy to command you DLD enable
Orly We're going to the interface. And he said the commander knew DLD or aggressive
or a C on global conflagration. What? We see the command you DLD
port aggressive followed light and
and seriously, we were going to the interfere stop configuration Lord.
And then you see the command beauty Ellie port aggressive.
In the day's lecture,
we focused on uni directional ing failures
which are prevalent in switch environments.
When we look at how we would deal unit directionally failures
by using your reality,
this was followed up by a demo of how we would implement you DLD in a switch.
And finally, we ended with dearest
shock months verify that you d l e is properly set up
and we ended up running. Somebody loves
to see you, the LD. In action
when it's establishing a Navy ship relationship with another device
in the next video, we'll dive into villains. Artie, clearly,
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