H3C Technologies H3C S7500E Series Switches - Manual (Page 80)

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Figure 7-3 Schematic diagram for a tangent-ring network
Intersecting rings
As shown in Figure 7-4 , there are two or more rings in the network topology and two common
nodes between rings. In this case, you only need to define an RRPP domain, and configure one
ring as the primary ring and the other rings as subrings.
Figure 7-4 Schematic diagram for an intersecting-ring network
Dual homed rings
As shown in Figure 7-5 , there are two or more rings in the network topology and two similar
common nodes between rings. In this case, you only need to define an RRPP domain, and
configure one ring as the primary ring and the other rings as subrings.