Cisco ASR 14000 Series Management Command Reference page 54

cdp holdtime
C i s c o C o n f i d e n t i a l - B e t a R e v i e w R 3 . 7. 1
cdp holdtime
To specify the time for which the receiving device should hold a Cisco Discovery Protocol (CDP) packet
from your networking device before discarding it, use the cdp holdtime command in global
configuration mode. To remove the cdp holdtime global configuration command from the configuration
file and restore the system to its default condition with respect to this command, use the no form of this
command.
Syntax Description seconds
Defaults
seconds: 180
Command Modes
Global configuration
Command History Release
Release 3.7.1
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes the proper
task IDs.
CDP packets are sent with a time-to-live value, or holdtime, that is nonzero after an interface is enabled.
The CDP holdtime must be set to a higher number of seconds than the time between CDP transmissions,
which is set using the
Task ID Task ID
cdp
Examples The following example shows how to specify that the CDP packets sent from the networking device are
held by the receiving device for 60 seconds before being discarded. You might want to set the holdtime
lower than the default setting of 180 seconds if information about your networking device changes often
and you want the receiving devices to purge this information more quickly.
RP/0/RP0/CPU0:router(config)# cdp holdtime 60
The following example shows how to use the no form of the command to set the holdtime to the default
of 180 seconds:
RP/0/RP0/CPU0:router(config)# no cdp holdtime
Cisco ASR 14000 Series Router System Management Command Reference
SMR-52
cdp holdtime seconds
no cdp holdtime
Holdtime to be sent in the CDP update packets. Range is 10 seconds to 255
seconds.
Modification
This command was introduced on the Cisco ASR 14000 Series Router.
cdp timer
Operations
read, write
command.
CDP Commands on Cisco IOS XR Software
OL-17231-01