R3303-HP HSR6800 Routers High Availability Configuration Guide

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Intersecting rings
As shown in Figure 20, two or more rings exist in the network topology and two common nodes exist
between rings. You only need to define an RRPP domain, and configure one ring as the primary ring and
the other rings as subrings.
Figure 20 Schematic diagram for an intersecting-ring network
Dual homed rings
As shown in Figure 21, two or more rings exist in the network topology and two similar common nodes
exist between rings. You only need to define an RRPP domain, and configure one ring as the primary ring
and the other rings as subrings.
Figure 21 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 22,
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
Device A
Device B
Device C
Device D
Device E
Edge node
Master node
Transit node
Assistant edge node
Domain 1
Ring 1
Ring 2
Master node
Device F
Master node
Ring 3