3Com 4510G Configuration Manual page 801

# Configure Device C as the 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.
[DeviceC-rrpp-domain1]
secondary-port gigabitethernet 1/0/2 level 0
[DeviceC-rrpp-domain1] ring 1 enable
# Configure Device C as the edge node of subring 3 in RRPP domain 1, with GigabitEthernet 1/0/4 as
the edge port, and enable subring 3.
[DeviceC-rrpp-domain1] ring 3 node-mode edge edge-port gigabitethernet 1/0/4
[DeviceC-rrpp-domain1] ring 3 enable
[DeviceC-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.
[DeviceC] rrpp domain 2
[DeviceC-rrpp-domain2] control-vlan 105
[DeviceC-rrpp-domain2] protected-vlan reference-instance 2
# Configure Device C as the transit node of primary ring 1 in RRPP domain 2, with GigabitEthernet
1/0/1 as the primary port and GigabitEthernet 1/0/2 as the secondary port, and enable ring 1.
[DeviceC-rrpp-domain2]
secondary-port gigabitethernet 1/0/2 level 0
[DeviceC-rrpp-domain2] ring 1 enable
# Configure Device C as the edge node of subring 2 in RRPP domain 2, with GigabitEthernet 1/0/3 as
the edge port, and enable subring 2.
[DeviceC-rrpp-domain2] ring 2 node-mode edge edge-port gigabitethernet 1/0/3
[DeviceC-rrpp-domain2] ring 2 enable
[DeviceC-rrpp-domain2] quit
# Enable RRPP.
[DeviceC] rrpp enable
4) Configuration on Device D
# Create VLANs 10 and 20, map VLAN 10 to MSTI 1 and VLAN 20 to MSTI 2, and activate MST region
configuration.
<DeviceD> system-view
[DeviceD] vlan 10
[DeviceD-vlan10] quit
[DeviceD] vlan 20
[DeviceD-vlan20] quit
[DeviceD] stp region-configuration
[DeviceD-mst-region] instance 1 vlan 10
[DeviceD-mst-region] instance 2 vlan 20
[DeviceD-mst-region] active region-configuration
[DeviceD-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
VLAN 1, and assign them to VLAN 10 and VLAN 20, and configure them to trust the 802.1p
precedence of the received packets.
ring 1 node-mode transit
ring 1 node-mode transit
3-30
primary-port gigabitethernet
primary-port gigabitethernet
1/0/1
1/0/1