Spanning Tree - Alcatel-Lucent OmniSwitch 6800 Series Network Configuration Manual

Configuring VLAN Stacking

Spanning Tree

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Spanning Tree is enabled by default for VLAN Stacking SVLANs. The Spanning Tree status for an
SVLAN is configurable in both the service-based and port-based VLAN Stacking modes. Note that the
SVLAN Spanning Tree status applies only to the service provider network topology.
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BPDU frames are tunneled by default. See
ing VLAN Stacking Ports" on page 6-27
based VLAN Stacking to tunnel or discard Spanning Tree BPDU.
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See "Configuring VLAN Stacking Network Ports" on page 6-19
Ports" on page 6-27
interoperability with legacy Spanning Tree BPDU systems.
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A back door link configuration is not supported. This occurs when there is a link between two
customer sites that are both connected to a VLAN Stacking provider edge switch.
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A dual home configuration is not supported. This type of configuration consists of a single customer
site connected to two different VLAN Stacking switches or two switches at a customer site connect to
two different VLAN Stacking switches.
OmniSwitch 6800/6850/9000 Network Configuration Guide
"Configuring a UNI Profile" on page 6-24
for information about configuring service-based and port-
for information about configuring service-based and port-based VLAN Stacking
Interaction With Other Features
and "Configuring VLAN Stacking
March 2008
and "Configur-
page 6-11