1-11z The link type of these ports must be trunk.z They must be Layer 2 GE ports.z They must not be member ports of any aggregation group or smart link group.z STP is disabled on them.z The 802.1p priority of trusted packets on the ports is configured, so that RRPP packets take higherprecedence than data packets when passing through the ports.z Do not enable OAM remote loopback function on an RRPP port. Otherwise, this may causetemporary broadcast storm.z You are recommended not to configure physical-link-state change suppression time on a portaccessing an RRPP ring to accelerate topology convergence. For details, refer to EthernetInterface Configuration in the Access Volume.z If you need to transparently transmit RRPP packets on a device without enabling RRPP, you mustensure only the two ports accessing an RRPP ring permit the packets of the control VLAN.Otherwise, the packets from other VLANs may go into the control VLAN in transparenttransmission mode and strike the RRPP ring. Meantime, you must configure the 802.1p priority fortrusted packets on the two ports accessing the RRPP ring.z Do not configure the default VLAN of a port accessing an RRPP ring as the primary control VLANor the secondary control VLAN, ensuring proper receiving/sending of RRPP packets.z Do not enable QinQ or VLAN mapping on the control VLAN. Otherwise, RRPPDUs cannot beforwarded properly.z You can still assign ports to or remove ports from the aggregation group corresponding to a Layer2 aggregate interface configured as an RRPP port.Configuring Master NodeFollow these steps to configure master node:To do… Use the command… RemarksEnter system view system-view —Create an RRPP domain andenter its view rrpp domain domain-id RequiredSpecify control VLAN for theRRPP domain control-vlan vlan-id RequiredSpecify the protected VLANsfor the RRPP domainprotected-vlanreference-instanceinstance-id-listRequiredNo protected VLAN is specifiedfor an RRPP domain bydefault.Specify the current device asthe master node of the ring,and specify the primary portand the secondary portring ring-id node-mode master[ primary-port interface-typeinterface-number ][ secondary-port interface-typeinterface-number ] levellevel-valueRequired
