1-5Enabling BPDU tunneling for a protocol in Layer 2 aggregate interface viewFollow these steps to enable BPDU tunneling for a protocol in Layer 2 aggregate interface view:To do… Use the command… RemarksEnter system view system-view —Enter Layer 2 aggregate interfaceviewinterfacebridge-aggregationinterface-number—Enable BPDU tunneling for aprotocol on the Layer 2 aggregateinterfacebpdu-tunnel dot1q { cdp |gvrp | hgmp | pvst | stp |vtp }RequiredBy default, BPDU tunneling fora protocol is disabled.Configuring Destination Multicast MAC Address for BPDUsBy default, the destination multicast MAC address for BPDUs is 0x010F-E200-0003. You can change itto 0x0100-0CCD-CDD0, 0x0100-0CCD-CDD1 or 0x0100-0CCD-CDD2 through the followingconfiguration.Follow these steps to configure destination multicast MAC address for BPDUs:To do… Use the command… RemarksEnter system view system-view —Configure the destination multicastMAC address for BPDUsbpdu-tunnel tunnel-dmacmac-addressOptional0x010F-E200-0003 by default.For BPDUs to be recognized, the destination multicast MAC addresses configured for BPDU tunnelingmust be the same on the edge devices on the service provider network.BPDU Tunneling Configuration ExamplesBPDU Tunneling for STP Configuration ExampleNetwork requirementsAs shown in Figure 1-3:z CE 1 and CE 2 are edges devices on the geographically dispersed network of User A; PE 1 and PE2 are edge devices on the service provider network.z All ports that connect service provider devices and customer devices are access ports and belongto VLAN 2; all ports that interconnect service provider devices are trunk ports and allow packets ofany VLAN to pass through.z MSTP is enabled on User A’s network.
