Configuring Master Node 1147■ When configuring multi-domain intersecting rings, do not enable or disable theRRPP ring on which the multi-domain intersection common port resides withRRPP globally enabled.■ In the case of multi-domain intersection, the rings in different domains areindependently configured. Each single domain can contain multiple rings,among which there must be one and only one primary ring. The data VLAN inone domain must be isolated from the data VLAN in another.The ports accessing an RRPP ring must conform to the following conditions:■ Trunk port;■ Layer 2 GE port;■ Except for aggregation port and loopback port;■ Port with STP, QinQ, 802.1x, MAC address authentication, voice VLANdisabled;■ Do not enable OAM remote loopback function on an RRPP port. Otherwise,this may cause temporary broadcast storm;■ Enable link status rapid report function on a port accessing an RRPP ring (thelink-delay of the port is set to 0) to accelerate topology convergence.n ■ If you need to transparently transmit RRPP packets on a device withoutenabling RRPP, you should ensure only the two ports accessing an RRPP ringpermits the packets of the control VLAN. Otherwise, the packets from otherVLANs may go into the control VLAN in transparent transmission mode andstrike the RRPP ring.■ Do not set the default VLAN ID of a port accessing an RRPP ring to primarycontrol VLAN ID or secondary control VLAN ID (the latter is equal to the formerplus 1), avoiding the influence on the proper receiving/sending of RRPPpackets.Configuring MasterNodeConfiguration Procedure Follow these steps to configure master node:To do… Use the command… RemarksEnter system view system-view -Create an RRPP domain andenter its viewrrpp domain domain-id RequiredSpecify control VLAN for theRRPP domaincontrol-vlan vlan-id RequiredSpecify the current device asthe master node of the ring,and specify the primary portand the secondary portring ring-id node-modemaster [ primary-portinterface-typeinterface-number ][ secondary-portinterface-typeinterface-number ] levellevel-valueRequired