Enabling And Disabling Lldp; Changing A Port's Lldp Operating Mode - Dell PowerConnect B-RX Configuration Manual

Enabling and disabling LLDP

LLDP is enabled by default on individual ports. However, to run LLDP, you must first enable it on a
global basis (on the entire device).
To enable LLDP globally, enter the following command at the global CONFIG level of the CLI.
BigIron RX(config)#lldp run
Syntax: [no] lldp run

Changing a port's LLDP operating mode

LLDP packets are not exchanged until LLDP is enabled on a global basis. When LLDP is enabled on
a global basis, by default, each port on the Brocade device will be capable of transmitting and
receiving LLDP packets. You can disable a port's ability to transmit and receive LLDP packets, or
change the operating mode to one of the following:
•
•
You can configure a different operating mode for each port on the Brocade device. For example,
you could disable the receipt and transmission of LLDP packets on port e 2/1, configure port e 2/3
to only receive LLDP packets, and configure port e 2/5 to only transmit LLDP packets.
The following sections show how to change the operating mode.
Enabling and disabling receive and transmit mode
To disable the receipt and transmission of LLDP packets on individual ports, enter a command
such as the following at the Global CONFIG level of the CLI.
BigIron RX(config)#no lldp enable ports e 2/4 e 2/5
The above command disables LLDP on ports 2/4 and 2/5. These ports will not transmit nor
receive LLDP packets.
To enable LLDP on a port after it has been disabled, enter the following command.
BigIron RX(config)#lldp enable ports e 2/4
Syntax: [no] lldp enable ports ethernet <slotnum/portnum> | all
Use the [no] form of the command to disable the receipt and transmission of LLDP packets on a
port.
You can list all of the ports individually, use the keyword to to specify ranges of ports, or a
combination of both. To apply the configuration to all ports on the device, use the keyword all
instead of listing the ports individually.
Enabling and disabling receive only mode
When LLDP is enabled on a global basis, by default, each port on the Brocade device will be
capable of transmitting and receiving LLDP packets. To change the LLDP operating mode from
receive and transmit mode to receive only mode, simply disable the transmit mode. Enter a
command such as the following at the Global CONFIG level of the CLI.
BigIron RX(config)#no lldp enable transmit ports e 2/4 e 2/5 e 2/6
The above command changes the LLDP operating mode on ports 2/4, 2/5, and 2/6 from transmit
and receive mode to receive only mode.
BigIron RX Series Configuration Guide
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Transmit LLDP information only
Receive LLDP information only
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Configuring LLDP
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