Allied Telesis SwitchBlade x3100 Series Manual page 456

Introduction
127
M1
Ring Segment Priority 127
T1
T1
T2
126
Ring Segment Priority 126
M2
126
T2
T3
Note 1
Ring Segment Priority 125
T3
125
EPSR_Topology_SuperLoop_complex1
4.6.12.1 Default Configuration
When an SBx3112 switch is initially booted up, the SuperLoop will be configured as follows:
No EPSR domains have been created, and so the SuperLoop feature is not configured.
•
4.6.12.2 Configuration Rules
Since a control VLAN can have many associated data VLANs, and common links can span multiple ring seg-
ments, understanding and then configuring a system with common links with shared data VLANs can become
complex. The following rules should be kept in mind when designing the domains with common links and
shared data VLANs.
It is possible that two or more domain instances could share a common link and the same data VLAN(s),
1.
and yet each domain could still have its own unique set of data VLANs. To prevent this configuration, note
the following:
4-136
Software Reference for SwitchBlade x3100 Series Switches (Layer Two Switching)
127
Note 1
= Blocked SP interface
= Common Link
127 127 T1
T2
126 126
Note 2
Note 1
126 126 T2
T3
125 125
125
M3
SuperLoop Example - Disjointed Ring Segments
FIGURE 4-15
T1
= All interfaces not
Note 1
numbered are 0 (default)
= With non-shared common link,
Note 2
can use same priority number
T1
T2
126
Ring Segment Priority 126
T2 M2
126
Ring Segment Priority 125
T3
T3
Configuring SuperLoop
T1
127 127
T1
126 126
T2
Note 2
126 126
T2 T2
T3 T3
125 125
125 125
M3
T1
Note 1
T2
Note 1
T3