What?s the default CDP holdtime in seconds for Cisco
routers?
* 30 seconds
* 180 seconds
* 90 seconds
* 60 seconds

Answer Posted / swamy.mr

By default CDP hold time is 180 sec.

Router_2#sho cdp
Global CDP information:
Sending CDP packets every 60 seconds
Sending a holdtime value of 180 seconds


But you can also set CDP timer and holdtime values.

Router_2#conf t
Enter configuration commands, one per line. End with
CNTL/Z.
Router_2(config)#cdp timer 90
Router_2(config)#cdp holdtime 360

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