BigIron RX Series Configuration Guide 26153-1001986-01Configuring LLDP 9Changing a port’s LLDP operating modeLLDP packets are not exchanged until LLDP is enabled on a global basis. When LLDP is enabled ona global basis, by default, each port on the Brocade device will be capable of transmitting andreceiving LLDP packets. You can disable a port’s ability to transmit and receive LLDP packets, orchange the operating mode to one of the following:• Transmit LLDP information only• Receive LLDP information onlyYou 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 2/3to 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 modeTo disable the receipt and transmission of LLDP packets on individual ports, enter a commandsuch as the following at the Global CONFIG level of the CLI.FastIron(config)#no lldp enable ports e 2/4 e 2/5The above command disables LLDP on ports 2/4 and 2/5. These ports will not transmit norreceive LLDP packets.To enable LLDP on a port after it has been disabled, enter the following command.FastIron(config)#lldp enable ports e 2/4Syntax: [no] lldp enable ports ethernet | allUse the [no] form of the command to disable the receipt and transmission of LLDP packets on aport.You can list all of the ports individually, use the keyword to to specify ranges of ports, or acombination of both. To apply the configuration to all ports on the device, use the keyword allinstead of listing the ports individually.Enabling and disabling receive only modeWhen LLDP is enabled on a global basis, by default, each port on the Brocade device will becapable of transmitting and receiving LLDP packets. To change the LLDP operating mode fromreceive and transmit mode to receive only mode, simply disable the transmit mode. Enter acommand such as the following at the Global CONFIG level of the CLI.FastIron(config)#no lldp enable transmit ports e 2/4 e 2/5 e 2/6The above command changes the LLDP operating mode on ports 2/4, 2/5, and 2/6 from transmitand receive mode to receive only mode.To change a port’s LLDP operating mode from transmit only to receive only, first disable thetransmit only mode, then enable the receive only mode. Enter commands such as the following.FastIron(config)#no lldp enable transmit ports e 2/7 e 2/8 e 2/9FastIron(config)#lldp enable receive ports e 2/7 e 2/8 e 2/9The above commands change the LLDP operating mode on ports 2/7, 2/8, and 2/9, from transmitonly to receive only. Note that if you do not disable the transmit only mode, you will configure theport to both transmit and receive LLDP packets.Syntax: [no] lldp enable receive ports ethernet | all
