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[DeviceA-GigabitEthernet1/0/2] qos trust dot1p
[DeviceA-GigabitEthernet1/0/2] quit
# Create RRPP domain 1, configure VLAN 100 as the primary control VLAN of RRPP domain 1,
and configure the VLAN mapped to MSTI 1 as the protected VLAN of RRPP domain 1.
[DeviceA] rrpp domain 1
[DeviceA-rrpp-domain1] control-vlan 100
[DeviceA-rrpp-domain1] protected-vlan reference-instance 1
# Configure Device A as the master node of primary ring 1, with GigabitEthernet 1/0/1 as the
primary port and GigabitEthernet 1/0/2 as the secondary port, and enable ring 1.
[DeviceA-rrpp-domain1] ring 1 node-mode master primary-port gigabitethernet 1/0/1
secondary-port gigabitethernet 1/0/2 level 0
[DeviceA-rrpp-domain1] ring 1 enable
[DeviceA-rrpp-domain1] quit
# Create RRPP domain 2, configure VLAN 105 as the primary control VLAN of RRPP domain 2,
and configure the VLAN mapped to MSTI 2 as the protected VLAN of RRPP domain 2.
[DeviceA] rrpp domain 2
[DeviceA-rrpp-domain2] control-vlan 105
[DeviceA-rrpp-domain2] protected-vlan reference-instance 2
# Configure Device A as the master node of primary ring 1, with GigabitEthernet 1/0/2 as the
master port and GigabitEthernet 1/0/1 as the secondary port, and enable ring 1.
[DeviceA-rrpp-domain2] ring 1 node-mode master primary-port gigabitethernet 1/0/2
secondary-port gigabitethernet 1/0/1 level 0
[DeviceA-rrpp-domain2] ring 1 enable
[DeviceA-rrpp-domain2] quit
# Enable RRPP.
[DeviceA] rrpp enable
2) Configuration on Device B
# Create VLANs 10 and 20, map VLAN 10 to MSTI 1 and VLAN 20 to MSTI 2, and activate MST
region configuration.
<DeviceB> system-view
[DeviceB] vlan 10
[DeviceB-vlan10] quit
[DeviceB] vlan 20
[DeviceB-vlan20] quit
[DeviceB] stp region-configuration
[DeviceB-mst-region] instance 1 vlan 10
[DeviceB-mst-region] instance 2 vlan 20
[DeviceB-mst-region] active region-configuration
[DeviceB-mst-region] quit
# Disable physical state change suppression and STP on GigabitEthernet 1/0/1 and
GigabitEthernet 1/0/2, configure the two ports as trunk ports, and assign them to VLAN 10 and
VLAN 20, and configure them to trust the 802.1p precedence of the received packets.
[DeviceB] interface gigabitethernet 1/0/1
[DeviceB-GigabitEthernet1/0/1] undo link-delay
[DeviceB-GigabitEthernet1/0/1] undo stp enable
[DeviceB-GigabitEthernet1/0/1] port link-type trunk
[DeviceB-GigabitEthernet1/0/1] port trunk permit vlan 10 20
[DeviceB-GigabitEthernet1/0/1] qos trust dot1p