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In the following example, LLDP is enabled globally. R1 and R2 are transmitting periodic LLDPDUs that contain
management, 802.1, and 802.3 TLVs.
Figure 79. Configuring LLDP
Viewing the LLDP Configuration
To view the LLDP configuration, use the following command.
•
Display the LLDP configuration.
CONFIGURATION or INTERFACE mode
show config
Examples of Viewing LLDP Configurations
The following example shows viewing an LLDP global configuration.
R1(conf)#protocol lldp
R1(conf-lldp)#show config
!
protocol lldp
advertise dot1-tlv port-protocol-vlan-id port-vlan-id
advertise dot3-tlv max-frame-size
advertise management-tlv system-capabilities system-description
hello 10
no disable
R1(conf-lldp)#
The following example shows viewing an LLDP interface configuration.
R1(conf-lldp)#exit
R1(conf)#interface tengigabitethernet 1/31
R1(conf-if-te-1/31)#show config
!
interface TengigabitEthernet 1/31
no ip address
switchport
no shutdown
Link Layer Discovery Protocol (LLDP)
667
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Troubleshooting
