User Manual

Figure 24. Extended Power via MDI TLV
LLDP Operation
On an Aggregator, LLDP operates as follows:
• LLDP is enabled by default.
• LLDPDUs are transmitted and received by default. LLDPDUs are transmitted periodically. The default
interval is 30 seconds.
• LLDPDU information received from a neighbor expires after the default Time to Live (TTL) value: 120
seconds.
• Dell Networking OS supports up to eight neighbors per interface.
• Dell Networking OS supports a maximum of 8000 total neighbors per system. If the number of
interfaces multiplied by eight exceeds the maximum, the system does not configure more than 8000.
• LLDP is not hitless.
Viewing the LLDP Configuration
To view the LLDP configuration, use the following command.
• Display the LLDP configuration.
CONFIGURATION or INTERFACE mode
show config
Example of Viewing LLDP Global Configurations
R1(conf)#protocol lldp
R1(conf-lldp)#show config
!
protocol lldp
advertise dot3-tlv max-frame-size
advertise management-tlv system-capabilities system-description
hello 10
no disable
R1(conf-lldp)#
Example of Viewing LLDP Interface Configurations
R1(conf-lldp)#exit
R1(conf)#interface tengigabitethernet 0/3
R1(conf-if-te-0/3)#show config
!
interface tengigabitEthernet 0/3
switchport
no shutdown
R1(conf-if-te-0/3)#protocol lldp
R1(conf-if-te-0/3-lldp)#show config
!
144
Link Layer Discovery Protocol (LLDP)