Operation Manual – RRPP
H3C S3610&S5510 Series Ethernet Switches
Chapter 1 RRPP Configuration
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I. RRPP domain
The interconnected devices with the same domain ID and control VLANs constitute an
RRPP domain. An RRPP domain contains multiple RRPP rings, in which one ring
serves as the primary ring and other rings serve as subrings. You can set a ring as
either the primary ring or a subring.
As shown in
, Domain 1 is an RRPP domain, including two RRPP rings: Ring
1 and Ring 2. All the nodes on the two RRPP rings belong to the RRPP domain.
II. RRPP ring
A ring-shaped Ethernet topology is called an RRPP ring. An RRPP domain is built up on
an RRPP ring. An RRPP ring falls into primary ring and subring. Both levels are set to 0
and 1 respectively when configuration.
As shown in
, Domain 1 contains two RRPP rings: Ring 1 and Ring 2. Ring 1
level is set to 0, meaning the primary ring; Ring 2 level is set to 1, meaning the subring.
For a ring, there are two cases:
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Health state: All the physical links on the Ethernet ring are connected.
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Disconnect state: Some physical link on the Ethernet ring fails.
III. Control VLAN and data VLAN
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Control VLAN is a VLAN specially designed to transfer RRPP packets. The ports
accessing an RRPP ring on devices belong to the control VLAN of the ring and
only these ports can join this VLAN. IP address configuration is prohibited on the
ports of the control VLAN. You can configure a control VLAN for the primary ring
(namely the primary control VLAN). However, the control VLAN of a subring
(namely the secondary control VLAN) is assigned automatically by the system and
its VLAN ID is the control VLAN ID of the primary ring plus 1.
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Data VLAN is a VLAN designed to transfer data packets, including the ports
accessing the Ethernet ring and other ports on devices.
IV. Node
Every device on an RRPP ring is referred to as a node. Node mode includes:
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Master node: Each ring has a master node primarily used to make loop detection
and loop guard.
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Transit node: All the nodes excluding the master node on the primary ring; and all
the nodes on a subring except for the master node and the nodes where the
primary ring intersects with the subring.
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Edge node: A node residing on the primary ring and a subring at the same time.
The node is a special transit node that serves as a transit node on the primary ring
and an edge node on the subring.
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Assistant-edge node: A node residing on the primary ring and a subring at the
same time. The node is a special transit node that serves as a transit node on the
