What information can be obtained from CDP? What happens if you try to set a CLOC

Question

What information can be obtained from CDP?

What happens if you try to set a CLOCK RATE on the DTE routers?

What happens to the CDP information if you change the hostname on one of the routers connected to it and then watch it every 20 seconds over the next four minutes?

What is the difference between CDP “holdtime” and “timer” commands?

How would you adjust the frequency of CDP updates to be every 3 minutes? Give an appropriate command.

What command could you use to determine if your router is connected to a DTE or DCE cable?

Explanation / Answer

Ques:1 - What information can be obtained from CDP?

Ans: CDP is also known as Cisco Discovery Protocol. It is a proprietary data link layer protocol. It was developed by Cisco Systems. CDP is independent from media devices and protocols and runs on all equipment including routers, bridges, access servers, and switches manufactured by Cisco systems.

Ques:2 - What happens if you try to set a CLOCK RATE on the DTE routers?

Ans: If you try to set a CLOCK RATE command on the DTE routers interface then you will receive the following error message "This command applies only to DCE interfaces".

Ques:4 - What is the difference between CDP “holdtime” and “timer” commands?

Ans: The difference between CDP “holdtime” and “timer” commands are:

Command: cdp holdtime seconds , no cdp holdtime

Command: cdp timer seconds , no cdp timer

Ques:5 - What command could you use to determine if your router is connected to a DTE or DCE cable?

Ans: You could use "show controller" command to determine that the router is connected to a DTE or DCE cable.

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