LLDP: Transmit maximum VLAN Name TLVs

Supports transmission of more than 5 VLAN name type, length, and value (TLVs) in the Link Layer Discovery Protocol (LLDP) data units. The LLDP data units can carry as many TLVs as possible. The number of VLAN TLVs is decided dynamically based on the maximum transmission unit (MTU) of the interface and other necessary TLVs that the protocol data units need to carry. The command set protocols lldp 149 interface transmit-max-vlan-tlv enables the system to send the maximum VLAN TLVs in the LLDP data units. The TLVs advertise information to peers. TLVs are used by LLDP neighbors to discover a device's capabilities.