Configuration procedure – H3C Technologies H3C S7500E Series Switches User Manual
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Device A, Device B, Device C, Device D, and Device E constitute RRPP domain 1, VLAN
4092 is the primary control VLAN of RRPP domain 1, and RRPP domain 1 protects all the
VLANs;
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Device A, Device B, Device C and Device D constitute primary ring 1, and Device B, Device
C and Device E constitute subring 2;
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Device A is the master node of primary ring 1, GigabitEthernet 2/0/1 is the primary port and
GigabitEthernet 2/0/2 is the secondary port;
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Device E is the master node of subring 2, GigabitEthernet 2/0/1 is the primary port and
GigabitEthernet 2/0/2 is the secondary port;
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Device B is the transit node of primary ring 1 and the edge node of subring 2, and
GigabitEthernet 2/0/3 is the edge port;
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Device C is the transit node of primary ring 1 and the assistant-edge node of subring 1, and
GigabitEthernet 2/0/3 is the edge port;
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Device D is the transit node of primary ring 1, GigabitEthernet 2/0/1 is the primary port and
GigabitEthernet 2/0/2 is the secondary port.
Figure 7-9 Network diagram for intersecting rings configuration
Configuration procedure
1) Configuration on Device A
# Set the physical state change suppression interval on GigabitEthernet2/0/1 and
GigabitEthernet2/0/2 to 0 seconds, disable STP, configure the two ports as trunk ports, and
assign them to all VLANs.
<DeviceA> system-view
[DeviceA] interface gigabitethernet 2/0/1
[DeviceA-GigabitEthernet2/0/1] link-delay 0
[DeviceA-GigabitEthernet2/0/1] undo stp enable
[DeviceA-GigabitEthernet2/0/1] port link-type trunk
[DeviceA-GigabitEthernet2/0/1] port trunk permit vlan all
[DeviceA-GigabitEthernet2/0/1] quit
[DeviceA] interface gigabitethernet 2/0/2
[DeviceA-GigabitEthernet2/0/2] link-delay 0
[DeviceA-GigabitEthernet2/0/2] undo stp enable