3Com S7906E Command Reference Manual page 463

Before configuring rings for an RRPP domain, configure the protected VLANs for the RRPP
domain first.
You must first configure the primary ring and then the subring when configuring an RRPP domain.
A ring ID cannot be applied to more than one RRPP ring in the same RRPP domain.
If a device resides on multiple RRPP rings in an RRPP domain, only one primary ring exists within
these rings. The device plays a role of either edge node or assistant edge node on other subrings.
Modifying the node mode, port mode and ring level of an RRPP ring is prohibited after configuration.
If needed, you must first delete the existing configuration.
You must configure the primary ring and then subrings when you configure the edge node and the
assistant edge node.
Moreover, you must remove all subring configurations before deleting the primary ring
configuration of the edge node and the assistant edge node. However, the enabled RRPP ring
cannot be deleted.
Related command: control-vlan, protected-vlan, and ring enable.
Examples
# Specify the device as the master node of primary ring 10 in RRPP domain 1, GigabitEthernet 3/0/1 as
the primary port and GigabitEthernet 3/0/2 as the secondary port.
<Sysname> system-view
[Sysname] rrpp domain 1
[Sysname-rrpp-domain1] control-vlan 100
[Sysname-rrpp-domain1] protect-vlan reference-instance 0 1 2
[Sysname-rrpp-domain1]
secondary-port gigabitethernet 3/0/2 level 0
# Specify the device as the transit node of primary ring 10 in RRPP domain 1, GigabitEthernet 3/0/1 as
the primary port and GigabitEthernet 3/0/2 as the secondary port.
<Sysname> system-view
[Sysname] rrpp domain 1
[Sysname-rrpp-domain1] control-vlan 100
[Sysname-rrpp-domain1] protect-vlan reference-instance 0 1 2
[Sysname-rrpp-domain1]
secondary-port gigabitethernet 3/0/2 level 0
# Specify the device as the master node of subring 20 in RRPP domain 1, GigabitEthernet 3/0/1 as the
primary port and GigabitEthernet 3/0/2 as the secondary port.
<Sysname> system-view
[Sysname] rrpp domain 1
[Sysname-rrpp-domain1] control-vlan 100
[Sysname-rrpp-domain1] protect-vlan reference-instance 0 1 2
[Sysname-rrpp-domain1]
secondary-port gigabitethernet 3/0/2 level 1
# Specify the device as the transit node of primary ring 20 in RRPP domain 1, GigabitEthernet 3/0/1 as
the primary port and GigabitEthernet 3/0/2 as the secondary port.
<Sysname> system-view
[Sysname] rrpp domain 1
[Sysname-rrpp-domain1] control-vlan 100
[Sysname-rrpp-domain1] protect-vlan reference-instance 0 1 2
ring 10 node-mode
ring 10 node-mode
ring 20 node-mode
1-13
master primary-port
transit primary-port
master primary-port
gigabitethernet 3/0/1
gigabitethernet 3/0/1
gigabitethernet 3/0/1