Lldp operation, Viewing the lldp configuration – Dell PowerEdge FX2/FX2s User Manual

Page 144

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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

!

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Link Layer Discovery Protocol (LLDP)

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