LLDP Organizational TLV for Proxy GatewayDefine a new organizational TLV :• LLDP defines an organizationally specific TLV (type 127) with an organizationally unique identifier(0x0001E8) and organizationally defined subtype (0x01) for sending or receiving this information.• LLDP will uses the existing infrastructure and adds the new TLV, and sends and receives only on theconfigured ports.• There are only a couple of MAC addresses for each unit to transmit so all currently active MACaddresses are carried on the newly defined TLV.• This TLV is recognizable only by Dell Networking devices with this feature support. Other deviceignore this field and are able to process other standard TLVs.The LLDP organizational TLV passes local destination MAC address information to peer VLT domaindevices so they can act as the proxy gateway. Two configurations are required to enable Proxy GatewayLLDP:• Global proxy gateway LLDP configuration to enable this feature• Interface proxy gateway LLDP configuration to enable/disable proxy-gateway LLDP TLV on particularinterfaces• The interface is typically a VLT port-channel which connects to a remote VLT domain• The new proxy gateway TLV is carried on the physical links under the port channel only• There should be at least one link connection to each unit of the VLT domainFollowing are the prerequisites for Proxy Gateway LLDP configuration:• LLDP must be globally enabled• No interface– level LLDP disable CLIs on the interfaces configured for proxy gateway, and you mustenable both transmission and reception• You must connect both units of the remote VLT domain by the port channel member.• If you connect more than one port to a unit of the remote VLT domain, it must be completed by thetime you enable the proxy gateway LLDP• You cannot have other conflicting configurations (for example, the no static proxy gatewayconfiguration)This feature might not operate properly if one of the following conditions is true:• Any proxy gateway configuration or LLDP configuration is not working• LLDP packets fail to reach the remote VLT domain devices (due to system down, rebooting, portdown or physical link connection)Sample Configurations for LLDP VLT Proxy GatewayApply the following configurations in the Core L3 Routers C and D in the local VLT domain and C1 and D1in the remote VLT domain:1. Configure proxy-gateway lldp in VLT Domain CONFIG mode.VLT Proxy Gateway 903
