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.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Cisco Discovery Protocol canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T5066535 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Cisco Discovery Protocol Context triple: [IEEE 802.1AB, relatedProtocol, Cisco Discovery Protocol]
-
A.
VSI Discovery and Configuration Protocol
VSI Discovery and Configuration Protocol is a network protocol used in virtualized data center environments to automatically discover and configure virtual station interfaces between virtual machines and physical network infrastructure.
-
B.
Cisco Catalyst switches
Cisco Catalyst switches are a family of enterprise-grade network switches from Cisco Systems designed for high-performance, secure, and scalable campus and data center networking.
-
C.
Cisco Data Center Network Manager
Cisco Data Center Network Manager is a centralized management and automation platform for Cisco data center networking environments, providing configuration, monitoring, and troubleshooting capabilities for large-scale infrastructures.
-
D.
Cisco IOS
Cisco IOS is Cisco Systems’ proprietary network operating system that powers many of its routers and switches, providing core routing, switching, and network services.
-
E.
Cisco FabricPath
Cisco FabricPath is a Cisco proprietary Layer 2 multipath technology that combines the simplicity of Ethernet with the scalability and resilience of routing to build large, efficient data center fabrics.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Cisco Discovery Protocol Target entity description: 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.
-
A.
VSI Discovery and Configuration Protocol
VSI Discovery and Configuration Protocol is a network protocol used in virtualized data center environments to automatically discover and configure virtual station interfaces between virtual machines and physical network infrastructure.
-
B.
Cisco Catalyst switches
Cisco Catalyst switches are a family of enterprise-grade network switches from Cisco Systems designed for high-performance, secure, and scalable campus and data center networking.
-
C.
Cisco Data Center Network Manager
Cisco Data Center Network Manager is a centralized management and automation platform for Cisco data center networking environments, providing configuration, monitoring, and troubleshooting capabilities for large-scale infrastructures.
-
D.
Cisco IOS
Cisco IOS is Cisco Systems’ proprietary network operating system that powers many of its routers and switches, providing core routing, switching, and network services.
-
E.
Cisco FabricPath
Cisco FabricPath is a Cisco proprietary Layer 2 multipath technology that combines the simplicity of Ethernet with the scalability and resilience of routing to build large, efficient data center fabrics.
- F. None of above. chosen
Statements (62)
| Predicate | Object |
|---|---|
| instanceOf |
Cisco proprietary protocol
ⓘ
Layer 2 protocol ⓘ network protocol ⓘ |
| abbreviation | CDP ⓘ |
| acronymOfStandardizedAlternative |
LLDP
ⓘ
linked to:
IEEE 802.1AB
|
| CDPv2Enhancement |
Duplex mismatch detection
ⓘ
VTP management domain advertisement ⓘ native VLAN advertisement ⓘ |
| configurationCommand | cdp run ⓘ |
| defaultHelloIntervalSeconds | 60 ⓘ |
| defaultHoldtimeSeconds | 180 ⓘ |
| defaultStatusOnCiscoDevices | enabled ⓘ |
| developer | Cisco Systems ⓘ |
| frameEncapsulation |
ATM
ⓘ
Ethernet ⓘ Frame Relay ⓘ HDLC ⓘ PPP ⓘ |
| 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
ⓘ
linked to:
Link Layer Topology Discovery
|
| supportsDeviceType |
Cisco IP phones
ⓘ
Cisco firewalls ⓘ Cisco load balancers ⓘ Cisco routers ⓘ Cisco switches ⓘ Cisco wireless access points ⓘ
linked to:
Cisco Meraki
|
| 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 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Cisco Discovery Protocol Description of subject: 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.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.