Figure 5.13 Stp Setting For Vlan - Fujitsu PRIMEQUEST 480 System Design Manual

STP setting for VLAN
When VLAN is divided to avoid a loop, set STP to off.
STP operates for each device. Even when VLAN is divided, STP determines a loop
and blocks one port.
A loop configuration is avoided by separating the A and B pair of ports from the C
and D pair of ports using divided VLANs. However, STP detects a loop and blocks
port C, and accordingly the communication between ports C and D is disabled.
C122-B001-02EN
GSWB
Port A
Port C

Figure 5.13 STP setting for VLAN

VLAN2
Port B
VLAN3
Port D
5.3 Notes on System Design
SW
5-33