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40 LLDP COMMANDS
Link Layer Discovery Protocol (LLDP) is used to discover basic information
about neighboring devices on the local broadcast domain. LLDP is a Layer 2
protocol that uses periodic broadcasts to advertise information about the
sending device. Advertised information is represented in Type Length Value
(TLV) format according to the IEEE 802.1ab standard, and can include
details such as device identification, capabilities and configuration settings.
LLDP also defines how to store and maintain information gathered about
the neighboring network nodes it discovers.
Link Layer Discovery Protocol - Media Endpoint Discovery (LLDP-MED) is an
extension of LLDP intended for managing endpoint devices such as Voice
over IP phones and network switches. The LLDP-MED TLVs advertise
information such as network policy, power, inventory, and device location
details. LLDP and LLDP-MED information can be used by SNMP applications
to simplify troubleshooting, enhance network management, and maintain
an accurate network topology.
Table 175: LLDP Commands
Command Function Mode
lldp Enables LLDP globally on the switch GC
lldp holdtime-multiplier Configures the time-to-live (TTL) value sent in
LLDP advertisements
GC
lldp
med-fast-start-count
Configures how many medFastStart packets are
transmitted
GC
lldp
notification-interval
Configures the allowed interval for sending
SNMP notifications about LLDP changes
GC
lldp refresh-interval Configures the periodic transmit interval for
LLDP advertisements
GC
lldp reinit-delay Configures the delay before attempting to re-
initialize after LLDP ports are disabled or the link
goes down
GC
lldp tx-delay Configures a delay between the successive
transmission of advertisements initiated by a
change in local LLDP MIB variables
GC
lldp admin-status Enables LLDP transmit, receive, or transmit and
receive mode on the specified port
IC
lldp basic-tlv
management-ip-
address
Configures an LLDP-enabled port to advertise
the management address for this device
IC
lldp basic-tlv
port-description
Configures an LLDP-enabled port to advertise its
port description
IC
lldp basic-tlv
system-capabilities
Configures an LLDP-enabled port to advertise its
system capabilities
IC
lldp basic-tlv
system-description
Configures an LLDP-enabled port to advertise
the system description
IC
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