HP 6125G HP 6125G & 6125G/XG Blade Switches High Availability Configur - Page 61
Single-ring load balancing, Intersecting-ring load balancing,
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Figure 15 Schematic diagram for a dual-homed-ring network Single-ring load balancing In a single-ring network, you can achieve load balancing by configuring multiple domains. As shown in Figure 16, Ring 1 is configured as the primary ring of both Domain 1 and Domain 2. Domain 1 and Domain 2 are configured with different protected VLANs. In Domain 1, Device A is configured as the master node of Ring 1. In Domain 2, Device B is configured as the master node of Ring 1. Such configurations enable the ring to block different links based on VLANs, and single-ring load balancing is achieved. Figure 16 Schematic diagram for a single-ring load balancing network Intersecting-ring load balancing In an intersecting-ring network, you can also achieve load balancing by configuring multiple domains. As shown in Figure 17, Ring 1 is the primary ring, and Ring 2 is the subring in both Domain 1 and Domain 2. Domain 1 and Domain 2 are configured with different protected VLANs. Device A is configured as the master node of Ring 1 in Domain 1. Device D is configured as the master node of Ring 1 in Domain 2. Device E is configured as the master node of Ring 2 in both Domain 1 and Domain 2. However, different ports on Device E are blocked in Domain 1 and Domain 2. With the configurations, you can enable traffic of different VLANs to travel over different paths in the subring and primary ring to achieve intersecting-ring load balancing. 54