Not supported by SBC SWe Lite in this release.

This section contains information about configuring the SBC 1000/2000 to operate within multiple spanning trees in a network.

Important Notes:
  • Region Settings
    • The Region Name must be the same on all switches and nodes in the tree.
    • The Revision must be the same on all switches and nodes in the tree.
  • MSTP Instances
    • The MST ID & VLAN associated to a given Instance ID must be configured identically on all MSTP capable devices on the network.

Introduction

A network topology of bridges typically contains redundant connections to provide alternate paths in case of link failures. Since there is no concept of time-to-live (TTL) in Ethernet frames, this could result in permanent circulation of frames if there are loops in the network. To prevent loops, a spanning tree connecting all the bridges is formed in real time. The standby/redundant ports are put in a discarding (non-forwarding) state. They are enabled when required.

Working with Multiple Spanning Trees

 

Default Conditions

On initial startup, the all ports are members of the default MSTP instance, which is disabled by default.

Limitations

A maximum of 32 user defined MSTP instances may be created.

Child Pages

Managing MST Instances
Modifying Region Settings

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