Allied Telesis SwitchBlade x3100 Series - Page 441

Dual Ring Configuration Introduction
4-121
Software Reference for SwitchBlade x3100 Series Switches (Layer Two Switching)
FIGURE 4-11 Configuration of Ring Ports in Interconnected EPSR Ring Networks
One of the systems, Allied Telesis System C, is common to Ethernet access ring Networks 1 and 2. As indi-
cated, this system is a master node for ring network 1 and a transit node for the ring network 2. System A
in ring network 2 is the master node for that ring. The remainder of the systems in both networks are consid-
ered to be transit nodes.
= Data VLAN (V_80)
= Physical Link
A
D
= Devices
= Links
V_60
V_80
V_80
V_60
V_80 V_60
B
C
1
2
3
4
1
4
V_80
V_60
D
0.3
A
= Control VLAN (V_60)
= Data VLAN on Physical
Link 1 is blocked
0.1
0.2
0.1
0.2
0.2
0.1
0.2
0.1
PP
SP
Master
Node
Data VLAN is
unblocked
To / From Network
V_90
5
8
V_80
V_90
G
0.2
0.1
V_80 V_90
E
0.2
0.1
6
V_80
V_90
F
0.2
0.2
7
C
D
= Devices
= Links
1
4
= Data VLAN (V_80)
= Control VLAN (V_90)
= Data VLAN on Physical
Link 5 is blocked
0.3 0.4
SP
PP
EPSR_Topology_Dual_UFO