Configuring Lldp - Cisco Nexus 3000 Series Configuration Manual

Configuring LLDP

The Data Center Bridging Exchange Protocol (DCBXP) is an extension of LLDP. It is used to announce,
exchange, and negotiate node parameters between peers. DCBXP parameters are packaged into a specific
DCBXP TLV. This TLV is designed to provide an acknowledgment to the received LLDP packet.
DCBXP is enabled by default, if you enable LLDP. When LLDP is enabled, DCBXP can be enabled or
disabled using the [no] lldp tlv-select dcbxp command. DCBXP is disabled on ports where LLDP transmit
or receive is disabled.
Configuring LLDP
Before You Begin
Ensure that the Link Layer Discovery Protocol (LLDP) feature is enabled on the switch.
Procedure
Step 1
Step 2
Cisco Nexus 3000 Series NX-OS Layer 2 Switching Configuration Guide, Release 6.x
120
Command or Action
switch# configure terminal
switch(config)# lldp {holdtime
seconds | reinit seconds | timer
seconds | tlv-select {dcbxp |
management-address [v4 | v6]
| port-description | port-vlan
| system-capabilities |
system-description |
system-name}}
Purpose
Enters global configuration mode.
Configures LLDP options.
Use the holdtime option to set the length of time (10 to 255
seconds) that a device should save LLDP information received
before discarding it. The default value is 120 seconds.
Use the reinit option to set the length of time (1 to 10 seconds) to
wait before performing LLDP initialization on any interface. The
default value is 2 seconds.
Use the timer option to set the rate (5 to 254 seconds) at which
LLDP packets are sent. The default value is 30 seconds.
Use the tlv-select option to specify the type length value (TLV).
The default is enabled to send and receive all TLVs.
Use the dcbxp option to specify the Data Center Ethernet Parameter
Exchange (DCBXP) TLV messages.
Use the management-address option to specify the management
address TLV messages.
Use the management-address v4 option to specify the IPv4
management address TLV messages.
Use the management-address v6 option to specify the IPv6
management address TLV messages.
Use the port-description option to specify the port description
TLV messages.
Use the port-vlan option to specify the port VLAN ID TLV
messages.
Use the system-capabilities option to specify the system capabilities
TLV messages.
Configuring LLDP
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