Allied Telesis AlliedWare Plus Operating System Version 5.4.4C (x310-26FT,x310-26FP,x310-50FT,x310-50FP) - Manual (Page 1525)

EPSR Introduction and Configuration
Software Reference for x310 Series Switches
C613-50046-01 REV A AlliedWare Plus TM Operating System - Version 5.4.4C 57.43
Figure 57-20: EPSR and spanning tree operation
Data
VLA
N
Data VLAN
Data VLAN
Master
Node
Other
Ports
Other
Ports
Other
Ports
Other
Ports
Other
Ports
Control VLAN (control_ring)
Transit
Node
Transit
Node
Transit
Node
EPSR 5.2.eps
Data VLAN
Port 1.1.1
Primary Port 1.1.2
Secondary
Port 1.1.1
Port 1.1.1 Port 1.1.1
Port 2 Port 2
P S
Node 1
Node 2
Node 3
Node 4
Port 1.1.2
Port 1.1.4 Port 1.1.3
Co
nt
ro
l V
LA
N
D
at
a
V
LA
N
Con
tro
l V
LA
N
D
at
a V
LA
N
EPSR Ring
STP/RSTP
Network