Procedure

1. Create an RRPP domain and its control VLAN.

   # Configure SwitchA. The configurations on SwitchB and SwitchC are similar to that on SwitchA and not mentioned here. For details, see the configuration files.

   <HUAWEI> system-view
   [HUAWEI] sysname SwitchA
   [SwitchA] rrpp domain 1
   [SwitchA-rrpp-domain-region1] control-vlan 20
   [SwitchA-rrpp-domain-region1] quit

2. Map Instance 1 to control VLANs 20 and 21 and data VLANs 100 to 300.

   # Configure SwitchA. The configurations on SwitchB and SwitchC are the same as that of SwitchA and not mentioned here. For details, see the configuration files.

   [SwitchA] vlan batch 100 to 300
   [SwitchA] stp region-configuration
   [SwitchA-mst-region] instance 1 vlan 20 21 100 to 300
   [SwitchA-mst-region] active region-configuration
   [SwitchA-mst-region] quit

3. Configure the interfaces to be added to the RRPP ring as trunk interfaces, allow data VLANs 100 to 300 to pass through the interfaces, and disable STP on the interfaces.

   # Configure SwitchA. The configurations on SwitchB and SwitchC are the same as that of SwitchA and not mentioned here. For details, see the configuration files.

   [SwitchA] interface gigabitethernet 0/0/1
   [SwitchA-GigabitEthernet0/0/1] port link-type trunk
   [SwitchA-GigabitEthernet0/0/1] undo port trunk allow-pass vlan 1
   [SwitchA-GigabitEthernet0/0/1] port trunk allow-pass vlan 100 to 300  
   [SwitchA-GigabitEthernet0/0/1] stp disable
   [SwitchA-GigabitEthernet0/0/1] quit
   [SwitchA] interface gigabitethernet 0/0/2
   [SwitchA-GigabitEthernet0/0/2] port link-type trunk
   [SwitchA-GigabitEthernet0/0/2] undo port trunk allow-pass vlan 1
   [SwitchA-GigabitEthernet0/0/2] port trunk allow-pass vlan 100 to 300 
   [SwitchA-GigabitEthernet0/0/2] stp disable
   [SwitchA-GigabitEthernet0/0/2] quit

4. Specify a protected VLAN, and create and enable an RRPP ring.

   # Configure SwitchA.

   [SwitchA] rrpp domain 1
   [SwitchA-rrpp-domain-region1] protected-vlan reference-instance 1
   [SwitchA-rrpp-domain-region1] ring 1 node-mode master primary-port gigabitethernet 0/0/1 secondary-port gigabitethernet 0/0/2 level 0
   [SwitchA-rrpp-domain-region1] ring 1 enable
   [SwitchA-rrpp-domain-region1] quit

   # Configure SwitchB.

   [SwitchB] rrpp domain 1
   [SwitchB-rrpp-domain-region1] protected-vlan reference-instance 1
   [SwitchB-rrpp-domain-region1] ring 1 node-mode transit primary-port gigabitethernet 0/0/1 secondary-port gigabitethernet 0/0/2 level 0
   [SwitchB-rrpp-domain-region1] ring 1 enable
   [SwitchB-rrpp-domain-region1] quit

   # Configure SwitchC.

   [SwitchC] rrpp domain 1
   [SwitchC-rrpp-domain-region1] protected-vlan reference-instance 1
   [SwitchC-rrpp-domain-region1] ring 1 node-mode transit primary-port gigabitethernet 0/0/1 secondary-port gigabitethernet 0/0/2 level 0
   [SwitchC-rrpp-domain-region1] ring 1 enable
   [SwitchC-rrpp-domain-region1] quit

5. Enable RRPP.

   # Configure SwitchA. The configurations on SwitchB and SwitchC are the same as that of SwitchA and not mentioned here. For details, see the configuration files.

   [SwitchA] rrpp enable

6. Verify the configuration.

   After the preceding configurations are complete and the network becomes stable, run the following commands to verify the configuration. The display on Switch A is used as an example.

   # Run the display rrpp brief command on SwitchA. The command output is as follows:

   [SwitchA] display rrpp brief
   Abbreviations for Switch Node Mode :
   M - Master , T - Transit , E - Edge , A - Assistant-Edge
   
   RRPP Protocol Status:  Enable
   RRPP Working Mode: HW
   RRPP Linkup Delay Timer: 0 sec (0 sec default)
   Number of RRPP Domains: 1
   
   Domain Index  : 1
   Control VLAN  : major 20    sub 21
   Protected VLAN : Reference Instance 1
   Hello Timer   : 1 sec(default is 1 sec)  Fail Timer : 6 sec(default is 6 sec)
   
    Ring   Ring    Node     Primary/Common           Secondary/Edge          Is
    ID     Level   Mode     Port                     Port                    Enabled
    ----------------------------------------------------------------------------
    1      0       M        GigabitEthernet0/0/1     GigabitEthernet0/0/2    Yes

   The command output shows that RRPP is enabled on SwitchA, the major control VLAN of domain 1 is VLAN 20 and the sub-control VLAN is VLAN 21, and SwitchA is the master node on Ring 1. The primary interface is GigabitEthernet0/0/1 and the secondary interface is GigabitEthernet0/0/2.

   # Run the display rrpp verbose domain command on SwitchA. The command output is as follows:

   [SwitchA] display rrpp verbose domain 1
   Domain Index   : 1
   Control VLAN   : major 20    sub 21
   Protected VLAN : Reference Instance 1
   Hello Timer    : 1 sec(default is 1 sec)  Fail Timer : 6 sec(default is 6 sec) 
   
   RRPP Ring      : 1
   Ring Level     : 0
   Node Mode      : Master
   Ring State     : Complete
   Is Enabled     : Enable                       Is Active: Yes
   Primary port   : GigabitEthernet0/0/1         Port status: UP
   Secondary port : GigabitEthernet0/0/2         Port status: BLOCKED

   The command output shows that the RRPP ring is complete.