3Com 4210G Series - Intersecting-Ring Load Balancing Configuration Example

3-24
[DeviceE] interface gigabitethernet 1/0/2
[DeviceE-GigabitEthernet1/0/2] link-delay 0
[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.
[DeviceE-rrpp-domain1] ring 2 node-mode master primary-port gigabitethernet 1/0/1
secondary-port gigabitethernet 1/0/2 level 1
[DeviceE-rrpp-domain1] ring 2 enable
[DeviceE-rrpp-domain1] quit
# Enable RRPP.
[DeviceE] rrpp enable
6) Verification
After the configuration, you can use the display command to view RRPP configuration and operational
information on each device.
Intersecting-Ring Load Balancing Configuration Example
Networking requirements
z Device A, Device B, Device C, Device D, and Device F constitute RRPP domain 1, and VLAN 100
is the primary control VLAN of the RRPP domain. Device A is the master node of the primary ring
Ring 1; Device D is the transit node of the primary ring Ring 1; Device F is the master node of the
subring Ring 3; Device C is the edge node of the subring Ring 3; Device B is the assistant-edge
node of the subring Ring 3.
z Device A, Device B, Device C, Device D, and Device E constitute RRPP domain 2, and VLAN 105
is the primary control VLAN of the RRPP domain. Device A is the master node of the primary ring
Ring 1; Device D is the transit node of the primary ring Ring 1; Device E is the master node of the
subring Ring 2; Device C is the edge node of the subring Ring 2; Device B is the assistant-edge
node of the subring Ring 2.
z Specify VLAN 10 as the protected VLAN of domain 1, and VLAN 20 as the protected VLAN of
domain 2. Thus, you can achieve VLAN-based load balancing on the primary ring.
z As the edge node and assistant-edge node of subring Ring 2 is the same as those of subring Ring
3, and the two subrings have the same SRPTs, you can add subrings Ring 2 and Ring 3 to the
RRPP ring group to reduce Edge-Hello traffic.