3-28
[DeviceB-rrpp-domain1] protected-vlan reference-instance 1
# Configure Device B as a transit node of primary ring 1 in RRPP domain 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-domain1] ring 1 node-mode transit primary-port gigabitethernet 1/0/1
secondary-port gigabitethernet 1/0/2 level 0
[DeviceB-rrpp-domain1] ring 1 enable
# Configure Device B as the assistant-edge node of subring 3 in RRPP domain 1, with GigabitEthernet
1/0/4 as the edge port, and enable subring 3.
[DeviceB-rrpp-domain1] ring 3 node-mode assistant-edge edge-port gigabitethernet 1/0/4
[DeviceB-rrpp-domain1] ring 3 enable
[DeviceB-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.
[DeviceB] rrpp domain 2
[DeviceB-rrpp-domain2] control-vlan 105
[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
[DeviceC-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
# Configure the suppression time of physical-link-state changes on GigabitEthernet 1/0/1 and
GigabitEthernet 1/0/2 as zero, disable STP, configure the two ports as trunk ports, remove them from
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