Administrator's Guide v4.1.1 Manual

Configuring and managing LLDP
The following sections discuss working with the Link Layer Discovery Protocol (LLDP) on Brocade
devices.
Understanding the default LLDP
The following table lists the default LLDP configuration. Consider this when making changes to the
defaults.
Default LLDP configuration TABLE 74
Parameter Default setting
LLDP global state Enabled
LLDP receive Enabled
LLDP transmit Enabled
Transmission frequency of LLDP updates 30 seconds
Hold time for receiving devices before discarding 120 seconds
DCBX-related TLVs to be advertised dcbx-tlv
Enabling LLDP globally
The protocol lldp command enables LLDP globally on all interfaces unless it has been specifically
disabled on an interface, or the global LLDP disable command has been executed. LLDP is globally
enabled by default.
To enable LLDP globally, perform the following steps from privileged EXEC mode.
1. Enter the configure terminal command to change to global configuration mode.
switch# configure terminal
2. Enter LLDP configuration mode.
switch(config)# protocol lldp
3. Enter the copy running-config startup-config command to save your configuration changes.
Disabling LLDP globally
LLDP is enabled globally by default. These instructions allow you to disable LLDP globally without
changing any other aspect of the LLDP configuration.
NOTE
The disable command executed in LLDP protocol configuration mode disables LLDP globally. To re-
enable LLDP, refer to Enabling LLDP globally on page 453.
To disable LLDP globally, perform the following steps from global configuration mode.
Configuring and managing LLDP
Network OS Administrator’s Guide 453
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