1-12Configuring RRPP RingsWhen configuring an RRPP ring, you must make some configurations on the ports connecting eachnode to the RRPP ring before configuring the nodes.z RRPP ports, that is, ports connecting devices to an RRPP ring, must be Layer-2 GE ports, Layer-2XGE ports, or Layer-2 aggregate interfaces and cannot be member ports of any aggregation group,service loopback group, or smart link group.z After configuring a Layer-2 aggregate interface as an RRPP port, you can still assign ports to orremove ports from the aggregation group corresponding to the interface.Configuring RRPP PortsPerform this configuration on each node’s ports intended for accessing RRPP rings.Follow these steps to configure RRPP ports:To do… Use the command… RemarksEnter system view system-view —Enter interface view interface interface-typeinterface-number —Configure the link type of theinterface as trunk port link-type trunkRequiredBy default, the link type of aninterface is access.Configure the trunk port carriesthe protected VLAN(s)port trunk permit vlan{ vlan-id-list | all }OptionalBy default, a trunk port carriesonly the default VLAN, which isVLAN 1 on the switch bydefault.Disable STP undo stp enable RequiredEnabled by defaultConfigure the port to trust the802.1p precedence of thereceived packetsqos trust dot1pRequiredBy default, the port priority istrusted.