5-30
[DeviceB-rrpp-domain2] protected-vlan reference-instance 2
# Configure Device B as the transit 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.
[DeviceB-rrpp-domain2] ring 1 node-mode transit primary-port gigabitethernet 1/0/1
secondary-port gigabitethernet 1/0/2 level 0
[DeviceB-rrpp-domain2] ring 1 enable
# Configure Device B as the assistant-edge node of subring 2 in RRPP domain 2, with
GigabitEthernet 1/0/3 as the edge port, and enable subring 2.
[DeviceB-rrpp-domain2] ring 2 node-mode assistant-edge edge-port gigabitethernet 1/0/3
[DeviceB-rrpp-domain2] ring 2 enable
[DeviceB-rrpp-domain2] quit
# Enable RRPP.
[DeviceB] rrpp enable
3) Configuration on Device C
# Create VLANs 10 and 20, map VLAN 10 to MSTI 1 and VLAN 20 to MSTI 2, and activate MST
region configuration.
<DeviceC> system-view
[DeviceC] vlan 10
[DeviceC-vlan10] quit
[DeviceC] vlan 20
[DeviceC-vlan20] quit
[DeviceC] stp region-configuration
[DeviceC-mst-region] instance 1 vlan 10
[DeviceC-mst-region] instance 2 vlan 20
[DeviceC-mst-region] active region-configuration
[DeviceC-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.
[DeviceC] interface gigabitethernet 1/0/1
[DeviceC-GigabitEthernet1/0/1] undo link-delay
[DeviceC-GigabitEthernet1/0/1] undo stp enable
[DeviceC-GigabitEthernet1/0/1] port link-type trunk
[DeviceC-GigabitEthernet1/0/1] port trunk permit vlan 10 20
[DeviceC-GigabitEthernet1/0/1] qos trust dot1p
[DeviceC-GigabitEthernet1/0/1] quit
[DeviceC] interface gigabitethernet 1/0/2
[DeviceC-GigabitEthernet1/0/2] undo link-delay
[DeviceC-GigabitEthernet1/0/2] undo stp enable
[DeviceC-GigabitEthernet1/0/2] port link-type trunk
[DeviceC-GigabitEthernet1/0/2] port trunk permit vlan 10 20
[DeviceC-GigabitEthernet1/0/2] qos trust dot1p
[DeviceC-GigabitEthernet1/0/2] quit
# Disable physical state change suppression and STP on GigabitEthernet 1/0/3, configure the
port as a trunk port, and assign it to VLAN 20, and configure it to trust the 802.1p precedence of
the received packets.
[DeviceC] interface gigabitethernet 1/0/3
[DeviceC-GigabitEthernet1/0/3] undo link-delay