LevelOne GEP-5070, User Manual

Page: 132 / 318

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| Configuring the Switch
Configuring the Spanning Tree Algorithm
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NTERFACE
To configure global settings for STA:
1.
Click Configuration, Spanning Tree, Bridge Settings.
2.
Modify the required attributes.
3.
Click Save.
Figure 48: STA Bridge Configuration
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ONFIGURING
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ULTIPLE
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PANNING
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REES
Use the MSTI Mapping page to add VLAN groups to an MSTP instance
(MSTI), or to designate the name and revision of the VLAN-to-MSTI
mapping used on this switch.
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ATH
Basic/Advanced Configuration, Spanning Tree, MSTI Mapping
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OMMAND
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SAGE
MSTP generates a unique spanning tree for each instance. This provides
multiple pathways across the network, thereby balancing the traffic load,
preventing wide-scale disruption when a bridge node in a single instance
fails, and allowing for faster convergence of a new topology for the failed
instance.
By default all VLANs are assigned to the Common Internal Spanning Tree
(CIST, or MST Instance 0) that connects all bridges and LANs within the
MST region. This switch supports up to 7 instances. You should try to group
VLANs which cover the same general area of your network. However,
remember that you must configure all bridges that exist within the same
MSTI Region with the same set of instances, and the same instance (on
each bridge) with the same set of VLANs. Also, note that RSTP treats each
MSTI region as a single node, connecting all regions to the CIST.