Allied Telesis SwitchBlade x3100 Series Manual page 453

SuperLoop Prevention
Note 1
Note 1
SP
V_80
PP
0.2
V_80 V_90
0.1
Ring Interface Priorities - only Highest Priority Unblocks and Prevents SuperLoop
FIGURE 4-14
Software Reference for SwitchBlade x3100 Series Switches (Layer Two Switching)
= Only SP interface of highest
priority is unblocked, so no
superloop created
Note 2
Note 1
127
0.2
Master
V_60
Node
(M1)
0.1
127
V_60
V_80
Note 2
V_90
V_40
125
V_40
126
SP
To / From Network
0.3
V_80
V_60
= Ring 1 Control VLAN (V_60)
= Ring 2 Control VLAN (V_90)
= Ring 3 Control VLAN (V_40)
= Data VLAN (V_80)
X
V_60
127 127
V_80
126 126
V_90
125 125
V_40
Master Node
125
(M3)
V_80
Master
Node
(M2) 126
V_90
V_80
PP
EPSR_Topology_SuperLoop_nested_Break
Introduction
= Physical Link
= EPSR Blocking
0.1
V_80
V_60
0.2
0.1
V_90
0.2
4-133