3Com S7906E Configuration Manual page 2175

[DeviceB-rrpp-domain1]
secondary-port gigabitethernet 2/0/2 level 0
[DeviceB-rrpp-domain1] ring 1 enable
# Configure Device B as the edge node of subring 2, with GigabitEthernet 2/0/3 as the edge port, and
enable ring 2.
[DeviceB-rrpp-domain1] ring 2 node-mode edge edge-port gigabitethernet 2/0/3
[DeviceB-rrpp-domain1] ring 2 enable
[DeviceB-rrpp-domain1] quit
# Enable RRPP.
[DeviceB] rrpp enable
3) Configuration on Device C
# Configure the suppression time of physical-link-state changes on GigabitEthernet 2/0/1,
GigabitEthernet 2/0/2, and GigabitEthernet 2/0/3 as zero, disable STP, configure the ports as trunk
ports, and assign them to all VLANs.
<DeviceC> system-view
[DeviceC] interface gigabitethernet 2/0/1
[DeviceC-GigabitEthernet2/0/1] link-delay 0
[DeviceC-GigabitEthernet2/0/1] undo stp enable
[DeviceC-GigabitEthernet2/0/1] port link-type trunk
[DeviceC-GigabitEthernet2/0/1] port trunk permit vlan all
[DeviceC-GigabitEthernet2/0/1] quit
[DeviceC] interface gigabitethernet 2/0/2
[DeviceC-GigabitEthernet2/0/2] link-delay 0
[DeviceC-GigabitEthernet2/0/2] undo stp enable
[DeviceC-GigabitEthernet2/0/2] port link-type trunk
[DeviceC-GigabitEthernet2/0/2] port trunk permit vlan all
[DeviceC-GigabitEthernet2/0/2] quit
[DeviceC] interface gigabitethernet 2/0/3
[DeviceC-GigabitEthernet2/0/3] link-delay 0
[DeviceC-GigabitEthernet2/0/3] undo stp enable
[DeviceC-GigabitEthernet2/0/3] port link-type trunk
[DeviceC-GigabitEthernet2/0/3] port trunk permit vlan all
[DeviceC-GigabitEthernet2/0/3] quit
# Create RRPP domain 1, configure VLAN 4092 as the primary control VLAN of RRPP domain 1, and
configure VLANs mapped to MSTIs 0 through 31 as the protected VLANs of RRPP domain 1.
[DeviceC] rrpp domain 1
[DeviceC-rrpp-domain1] control-vlan 4092
[DeviceC-rrpp-domain1] protected-vlan reference-instance 0 to 31
# Configure Device C as a transit node of primary ring 1, with GigabitEthernet 2/0/1 as the primary port
and GigabitEthernet 2/0/2 as the secondary port, and enable ring 1.
[DeviceC-rrpp-domain1]
secondary-port gigabitethernet 2/0/2 level 0
[DeviceC-rrpp-domain1] ring 1 enable
# Configure Device C as the assistant-edge node of subring 2, with GigabitEthernet 2/0/3 as the edge
port, and enable ring 2.
ring 1 node-mode
ring 1 node-mode transit
1-24
transit primary-port
primary-port
gigabitethernet 2/0/1
gigabitethernet 2/0/1