Allied Telesis SwitchBlade x3100 Series Manual page 441

Dual Ring Configuration
EPSR_Topology_Dual_UFO
FIGURE 4-11
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.
Software Reference for SwitchBlade x3100 Series Switches (Layer Two Switching)
SP
1
0.2
B
V_80 V_60
0.1
2
= Physical Link
= Control VLAN (V_60)
= Data VLAN (V_80)
= Data VLAN on Physical SP
Link 1 is blocked
5
0.2
E
V_80 V_90
0.1
6
Configuration of Ring Ports in Interconnected EPSR Ring Networks
To / From Network
0.3
PP
V_80
A Master
Node
V_60
A D = Devices
1 = Links
4
3
V_60
C
V_80
PP
V_90
C D = Devices
1 = Links
4
V_90
F
V_80
Introduction
4
0.1
D
V_80
V_60
0.2
Data VLAN is
unblocked
= Control VLAN (V_90)
= Data VLAN (V_80)
= Data VLAN on Physical
Link 5 is blocked
8
0.1
G
V_80
V_90
0.2
7
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