3-5BPDU Tunnel Configuration ExampleTransmitting STP Packets Through a TunnelNetwork requirementsz Customer1 and Customer2 are devices operating in a customer network; Provider1 and Provider2are edge devices operating in the service provider network. The two devices receive data from thecustomer network by using GigabitEthernet1/0/1 and GigabitEthernet1/0/2 respectively.z Provider1 and Provider2 are connected through trunk links, which permit packets of all VLANs.z Enable the service provider network to transmit STP packets of the customer network throughBPDU tunnel. The destination MAC address for tunnel packets is 010f-e233-8b22.z Enable the VLAN-VPN feature for the service provider network, and enable the service providernetwork to use VLAN 100 to transmit data packets of the customer network.Network diagramFigure 3-4 Network diagram for BPDU Tunnel configurationConfiguration procedure1) Configure Provide1.# Disable STP on GigabitEthernet1/0/1. system-view[Sysname] interface GigabitEthernet 1/0/1[Sysname-GigabitEthernet1/0/1] stp disable# Enable the BPDU tunnel feature for STP BPDUs on GigabitEthernet1/0/1.[Sysname-GigabitEthernet1/0/1] bpdu-tunnel stp# Enable the VLAN-VPN feature on GigabitEthernet1/0/1 and use VLAN 100 to transmit user datapackets through BPDU tunnels.[Sysname-GigabitEthernet1/0/1] port access vlan 100[Sysname-GigabitEthernet1/0/1] vlan-vpn enable# Configure the destination MAC address for protocol packets transmitted through the BPDU tunnel.[Sysname-GigabitEthernet1/0/1] quit[Sysname] bpdu-tunnel tunnel-dmac 010f-e233-8b22# Configure GigabitEthernet1/0/2 as a trunk port that permits packets of all VLANs.[Sysname] interface GigabitEthernet 1/0/2[Sysname-GigabitEthernet1/0/2] port link-type trunk[Sysname-GigabitEthernet1/0/2] port trunk permit vlan all
