R3102-R3103-HP 6600/HSR6600 Routers High Availability Configuration Guide

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Figure 19 Schematic diagram for a tangent-ring network
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.
Ring 1
Device A
Device B
Device C
Device E
Master node
Domain 1
Transit node
Device D
Transit node
Transit node
Ring 2
Device F
Master node
Transit node
Domain 2
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