Specifications

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Cisco Wide Area Application Services Command Reference
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Chapter 3 CLI Commands
(config) cdp
(config) cdp
To configure the Cisco Discovery Protocol (CDP) options globally on all WAAS device interfaces, use
the cdp command in global configuration mode.
cdp {enable | holdtime seconds | timer seconds}
Syntax Description
Defaults holdtime: 180 seconds
timer: 60 seconds
Command Modes global configuration
Device Modes application-accelerator
central-manager
Usage Guidelines When enabled with the cdp enable command, CDP obtains protocol addresses of neighboring devices
and discovers the platform of those devices. It also shows information about the interfaces used by your
device. CDP is media- and protocol-independent and runs on Cisco-manufactured equipment.
Use of SNMP with the CDP MIB allows network management applications to learn the device type and
the SNMP agent address of neighboring devices and to send SNMP queries to those devices. Cisco
Discovery Protocol uses the CISCO-CDP-MIB.
Each device configured for CDP sends periodic messages, known as advertisements, to a multicast
address. The cdp timer seconds command specifies the rate at which CDP packets are sent. Each device
advertises at least one address at which it can receive SNMP messages. The advertisements also contain
Time-To-Live or hold-time information. To set the hold time, use the cdp holdtime seconds command
to specify the period of time in seconds that a receiver is to keep CDP packets. Each device also listens
to the periodic CDP messages sent by others to learn about neighboring devices.
Examples In the following example, CDP is first enabled, the hold time is set to 10 seconds for keeping CDP
packets, and then the rate at which CDP packets are sent (15
seconds) is set:
WAE(config)# cdp enable
WAE(config)# cdp holdtime 10
WAE(config)# cdp timer 15
enable Enables CDP globally.
holdtime Sets the length of time in seconds that a receiver keeps CDP packets before
they are discarded. The default is 180 seconds.
seconds Length of time that a receiver keeps the CDP packet in seconds (10–255).
timer Interval between the CDP advertisements in seconds. The default is 60
seconds.
seconds Interval in seconds (5–254).