113Configuration restrictions and guidelines• Settings made in Layer 2 Ethernet interface view or Layer 2 aggregate interface view take effectonly on the 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, disablethe protocol on the port first.• Because PVST is a special STP protocol, you must do two things before you enable BPDU tunnelingfor PVST 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 portof a Layer 2 aggregation group.Configuration procedureYou can enable BPDU tunneling for different protocols in different views.Enabling BPDU tunneling for a protocol in Layer 2 Ethernet interface view or port group viewStep Command Remarks1. Enter system view. system-view N/A2. Enter Ethernet interface view or portgroup view.• Enter Layer 2 Ethernet interfaceview:interface interface-typeinterface-number• Enter port group view:port-group manualport-group-nameUse either command.3. Enable BPDU tunneling for aprotocol.bpdu-tunnel dot1q { cdp | dldp |eoam | gvrp | hgmp | lacp | lldp |pagp | pvst | stp | udld | vtp }Disabled by default.Enabling BPDU tunneling for a protocol in Layer 2 aggregate interface viewStep Command Remarks1. Enter system view. system-view N/A2. Enter Layer 2 aggregate interfaceview.interface bridge-aggregationinterface-number N/A3. Enable BPDU tunneling for aprotocol on the Layer 2 aggregateinterface.bpdu-tunnel dot1q { cdp | gvrp | hgmp |pvst | stp | vtp } Disabled by default.Configuring destination multicast MAC address forBPDUsBy 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.
