Brocade Communications Systems 6650 manual Enabling and disabling Lldp

LLDP configuration 8

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.

Brocade(config)#lldp run

Syntax: [no] lldp run

Enabling support for tagged LLDP packets

By default, Brocade devices do not accept tagged LLDP packets from other vendors’ devices. To enable support, apply the command lldp tagged-packets process at the Global CONFIG level of the CLI. When enabled, the device will accept incoming LLDP tagged packets if the VLAN tag matches any of the following:

•a configured VLAN on the port

•the default VLAN for a tagged port

•the configured untagged VLAN for a dual-mode port

To enable support for tagged LLDP packets, enter the following command.

Brocade(config)#lldp tagged-packets process

Syntax: [no] lldp tagged-packets process

Changing a port 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:

•Transmit LLDP information only

•Receive LLDP information only

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 1/1/1, configure port e 1/1/3 to only receive LLDP packets, and configure port e 1/1/5 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.

Brocade(config)#no lldp enable ports e 1/1/1 e 1/1/2

The above command disables LLDP on ports 1/1/1 and 1/1/2. These ports will not transmit nor receive LLDP packets.

To enable LLDP on a port after it has been disabled, enter the following command.

Brocade ICX 6650 Administration Guide	193
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