Original subtitles

GDP for Cisco Discovery Protocol is a Cisco proprietary protocol.

LDP or link Lei a Discovery Protocol is an industry standard protocol.

Al LDP is not enabled by default on Cisco devices so you will need to enable DP.

On your Cisco devices if you want to use LDP instead of CTP

LDP is very useful when you have a multi vendor environments.

So if you are using Cisco with HP or Juniper or another vendor you may want to use LDP so on call 1

show LDP neighbors.

Notice we see something very similar.

We can see our access switches and we can see court to on court to show LDP neighbors we can see Access

Switch one and two we can see call one connected via two links access 3.

And in this example we are seeing the Rada twice for some reason that could simply be a problem with

Packet Tracer.

This is the correct output because the rod is connected via gigabit 0 0 0 instead of gigabit 0 0 1 that's

connected to the Internet

so that's probably a packet tracer problem.

Show LDP neighbors on access 1.

We can see the two core switches that looks good.

Access to show LDP neighbours we can see something similar.

Show LDP neighbours on access 3.

We can see that two core switches

so notice with GDP you can use the command shows GDP to see GDP information.

You can also use the command show LDP to see LDP information CCP sends updates every 60 seconds.

LDP sends updates every 30 seconds hold time for CCP is 180 seconds LDP is 120 seconds so slight difference

in time as you have some luck kind of information such as Show LDP neighbors details or detail to see

detailed information about neighbors so as an example we can see a device connected to gigabit one zero

twenty three.

It's a layer 3 switch.

We can see the name which is called too.

We can see the port information we can see the operating system used.

We can see the other interface used by court too.

Something similar could be done with CPS shows GDP neighbors detail will allow us to see detailed information

about our neighbors so there's the command code to 46 50 running this version of operating system and

we can see other information about that neighbor.

Spent some time looking after the output of CTP and a little DP for the exam.

You need to be able to read this output so show CTP entry access 1 shows us detailed information for

one device called Access 1 that's its name interface that we using is gigabit ones 0 1 the outgoing

port in other words the port on the other side is gigabit 1 0 23 which is correct on call 1 local port

is this port on the other side is gigabit 1 0 twenty three we can see operating system version once

again and other information about the device.

So spend a bit of time looking at both a little DP and DP output make sure that you can interpret the

output.