3Com 4500G Family Configuration Manual page 834

[DeviceD-GigabitEthernet1/0/1] qos trust dot1p
[DeviceD-GigabitEthernet1/0/1] quit
[DeviceD] interface gigabitethernet 1/0/2
[DeviceD-GigabitEthernet1/0/2] undo stp enable
[DeviceD-GigabitEthernet1/0/2] port link-type trunk
[DeviceD-GigabitEthernet1/0/2] port trunk permit vlan all
[DeviceD-GigabitEthernet1/0/2] qos trust dot1p
[DeviceD-GigabitEthernet1/0/2] 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 16 as the protected VLANs of RRPP domain 1.
[DeviceD] rrpp domain 1
[DeviceD-rrpp-domain1] control-vlan 4092
[DeviceD-rrpp-domain1] protected-vlan reference-instance 0 to 16
# Configure Device D 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.
[DeviceD-rrpp-domain1] ring 1 node-mode transit primary-port gigabitethernet 1/0/1
secondary-port gigabitethernet 1/0/2 level 0
[DeviceD-rrpp-domain1] ring 1 enable
[DeviceD-rrpp-domain1] quit
# Enable RRPP.
[DeviceD] rrpp enable
5) Configuration on Device E
# Disable STP on GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2, configure the two ports as trunk
ports, and assign them to all VLANs, and configure them to trust the 802.1p precedence of the received
packets.
<DeviceE> system-view
[DeviceE] interface gigabitethernet 1/0/1
[DeviceE-GigabitEthernet1/0/1] undo stp enable
[DeviceE-GigabitEthernet1/0/1] port link-type trunk
[DeviceE-GigabitEthernet1/0/1] port trunk permit vlan all
[DeviceE-GigabitEthernet1/0/1] qos trust dot1p
[DeviceE-GigabitEthernet1/0/1] quit
[DeviceE] interface gigabitethernet 1/0/2
[DeviceE-GigabitEthernet1/0/2] undo stp enable
[DeviceE-GigabitEthernet1/0/2] port link-type trunk
[DeviceE-GigabitEthernet1/0/2] port trunk permit vlan all
[DeviceE-GigabitEthernet1/0/2] qos trust dot1p
[DeviceE-GigabitEthernet1/0/2] 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 16 as the protected VLANs of RRPP domain 1.
[DeviceE] rrpp domain 1
[DeviceE-rrpp-domain1] control-vlan 4092
[DeviceE-rrpp-domain1] protected-vlan reference-instance 0 to 16
# Configure Device E as the master node of subring 2, with GigabitEthernet 1/0/1 as the primary port
and GigabitEthernet 1/0/2 as the secondary port, and enable ring 2.
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