Link Layer Topology Discovery

E492864

Link Layer Topology Discovery (LLDP) is a vendor-neutral network protocol used by devices to advertise their identity and capabilities to neighbors, enabling automatic discovery and mapping of network topology at the data link layer.

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Statements (59)

Predicate Object
instanceOf data link layer protocol
network protocol
abbreviation LLDP NERFINISHED
competesWith Cisco Discovery Protocol NERFINISHED
definedInStandard IEEE 802.1AB NERFINISHED
discoveryMethod one-way announcements
periodic advertisements
frameDestinationAddress 01:80:C2:00:00:0E
hasExtension LLDP-MED NERFINISHED
informationAdvertised MAC/PHY configuration
PoE capabilities
VLAN information
chassis ID
link aggregation information
management address
maximum frame size
port ID
port description
system capabilities
system description
system name
isExtensible true
isProprietaryAlternativeTo none
isSimilarTo Cisco Discovery Protocol NERFINISHED
isVendorSpecific false
layer data link layer
LLDP-MEDFullName Link Layer Discovery Protocol – Media Endpoint Discovery NERFINISHED
LLDP-MEDUseCase VoIP endpoint discovery
managementInterface SNMP NERFINISHED
operatesBetween directly connected devices
OSIlayer Layer 2
protocolType discovery protocol
neighbor discovery protocol
purpose advertise device capabilities to neighbors
advertise device identity to neighbors
enable automatic discovery of network topology
enable mapping of network topology at the data link layer
scope vendor-neutral
standardizedBy IEEE NERFINISHED
supports Power over Ethernet management
VLAN identification
inventory management
link aggregation identification
location identification
network automation
network management
network troubleshooting
topology mapping
transportsOver Ethernet NERFINISHED
IEEE 802 LANs NERFINISHED
usedBy IP phones
network management systems
network switches
routers
servers
wireless access points
uses LLDP Data Units
Type-Length-Value structures
usesAcronym TLV

Referenced by (1)

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IEEE 802.1AB relatedProtocol Link Layer Topology Discovery