Cisco Discovery Protocol
E490035
Cisco Discovery Protocol is a proprietary Layer 2 network protocol developed by Cisco that enables Cisco devices to discover and share information about directly connected network equipment.
Statements (62)
| Predicate | Object |
|---|---|
| instanceOf |
Cisco proprietary protocol
ⓘ
Layer 2 protocol ⓘ network protocol ⓘ |
| abbreviation | CDP NERFINISHED ⓘ |
| acronymOfStandardizedAlternative | LLDP NERFINISHED ⓘ |
| CDPv2Enhancement |
Duplex mismatch detection
ⓘ
VTP management domain advertisement ⓘ native VLAN advertisement ⓘ |
| configurationCommand | cdp run ⓘ |
| defaultHelloIntervalSeconds | 60 ⓘ |
| defaultHoldtimeSeconds | 180 ⓘ |
| defaultStatusOnCiscoDevices | enabled ⓘ |
| developer | Cisco Systems NERFINISHED ⓘ |
| frameEncapsulation |
ATM
ⓘ
Ethernet ⓘ Frame Relay ⓘ HDLC ⓘ PPP NERFINISHED ⓘ |
| globalDisableCommand | no cdp run ⓘ |
| informationAdvertised |
IP address
ⓘ
Power over Ethernet requirements ⓘ VLAN information ⓘ capabilities ⓘ device ID ⓘ duplex setting ⓘ native VLAN ⓘ platform ⓘ port ID ⓘ software version ⓘ voice VLAN ⓘ |
| interfaceConfigurationCommand | cdp enable ⓘ |
| interfaceDisableCommand | no cdp enable ⓘ |
| operatesAtOSIModelLayer | Data Link layer ⓘ |
| primaryPurpose |
capabilities advertisement
ⓘ
device discovery ⓘ network inventory collection ⓘ topology discovery ⓘ |
| protocolType | neighbor discovery protocol ⓘ |
| recommendedSecurityPractice | disable on untrusted interfaces ⓘ |
| scope | directly connected devices ⓘ |
| securityConcern | information disclosure risk ⓘ |
| showCommand |
show cdp entry
ⓘ
show cdp interface ⓘ show cdp neighbors ⓘ show cdp neighbors detail ⓘ show cdp traffic ⓘ |
| standardizedAlternative | Link Layer Discovery Protocol NERFINISHED ⓘ |
| supportsDeviceType |
Cisco IP phones
NERFINISHED
ⓘ
Cisco firewalls NERFINISHED ⓘ Cisco load balancers ⓘ Cisco routers NERFINISHED ⓘ Cisco switches ⓘ Cisco wireless access points NERFINISHED ⓘ |
| supportsV2 | yes ⓘ |
| useCase |
automatic IP phone configuration
ⓘ
network documentation ⓘ troubleshooting Layer 2 connectivity ⓘ voice VLAN assignment ⓘ |
| usesMulticastMACAddress | 01:00:0C:CC:CC:CC ⓘ |
| vendorSpecific | yes ⓘ |
| version |
CDP Version 1
ⓘ
CDP Version 2 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.