CDP

Cisco Discovery Protocol (CDP) is a proprietary Layer 2 neighbor discovery protocol that enables Cisco devices to advertise and learn information about directly connected Cisco devices. It operates independently of Layer 3 protocols and provides valuable network topology information including device types, software versions, capabilities, and platform details. CDP is essential for network discovery, troubleshooting, and management tools, though it can be selectively disabled on interfaces or globally for security considerations.

Diagram

Classes

configuration (iosxe.devices)

Name	Type	Constraint	Mandatory	Default Value
cdp	Class	`[cdp]`	No

cdp (iosxe.devices.configuration)

Name	Type	Constraint	Mandatory
holdtime	Integer	min: `10`, max: `255`	No
timer	Integer	min: `5`, max: `254`	No
run	Boolean	`true`, `false`	No
filter_tlv	String		No
tlv_lists	List	`[tlv_lists]`	No

tlv_lists (iosxe.devices.configuration.cdp)

Name	Type	Constraint	Mandatory
name	String		Yes
vtp_mgmt_domain	Boolean	`true`, `false`	No
cos	Boolean	`true`, `false`	No
duplex	Boolean	`true`, `false`	No
trust	Boolean	`true`, `false`	No
version	Boolean	`true`, `false`	No

Sample Configuration

cdp run
cdp holdtime 15
cdp timer 10
cdp filter-tlv-list MY-TLV-LIST
cdp tlv-list MY-TLV-LIST
 duplex
 vtp-mgmt-domain
 cos
 trust
 version

Examples

iosxe:
  devices:
    - name: Device1
      configuration:
        cdp:
          holdtime: 15
          timer: 10
          run: true
          filter_tlv_list: MY-TLV-LIST
          tlv_lists:
            - name: MY-TLV-LIST
              duplex: true
              vtp_mgmt_domain: true
              cos: true
              trust: true
              version: true