104Enabling BPDU tunnelingYou can enable BPDU tunneling for different protocols in different views.NOTE:• Settings made in Layer 2 Ethernet interface view or Layer 2 aggregate interface view take effect only onthe current port. Settings made in port group view take effect on all ports in the port group.• Before you enable BPDU tunneling for DLDP, EOAM, GVRP, HGMP, LLDP, or STP on a port, disable theprotocol on the port first.• Because PVST is a special STP protocol, you must do two things before you enable BPDU tunneling forPVST on a port: first, disable STP; second, enable BPDU tunneling for STP on the port.• Do not enable BPDU tunneling for DLDP, EOAM, LACP, LLDP, PAGP, or UDLD on the member port of aLayer 2 aggregation group.Enabling BPDU tunneling for a protocol in Layer 2 Ethernet interface view or port group viewFollow these steps to enable BPDU tunneling for a protocol in Ethernet interface view or port group view:To do... Use the command... RemarksEnter system view system-view —Enter Layer 2 Ethernetinterface viewinterface interface-typeinterface-numberEnter Ethernetinterface view orport group view Enter port group view port-group manual port-group-nameRequiredUse either command.Enable BPDU tunneling for a protocolbpdu-tunnel dot1q { cdp | dldp |eoam | gvrp | hgmp | lacp | lldp |pagp | pvst | stp | udld | vtp }RequiredDisabled by default.Enabling 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 interface view interface bridge-aggregationinterface-number —Enable BPDU tunneling for a protocol onthe Layer 2 aggregate interfacebpdu-tunnel dot1q { cdp | gvrp | hgmp |pvst | stp | vtp }RequiredDisabled by defaultConfiguring 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.