SignaMax SC30010, Справочное руководство CLI

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Chapter 17
| Spanning Tree Commands
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Command Usage
◆
MST priority is used in selecting the root bridge and alternate bridge of the
specified instance. The device with the highest priority (i.e., lowest
numerical value) becomes the MSTI root device. However, if all devices
have the same priority, the device with the lowest MAC address will then
become the root device.
◆
You can set this switch to act as the MSTI root device by specifying a
priority of 0, or as the MSTI alternate device by specifying a priority of
16384.
Example
Console(config-mstp)#mst 1 priority 4096
Console(config-mstp)#
mst vlan
This command adds VLANs to a spanning tree instance. Use the no form to
remove the specified VLANs. Using the no form without any VLAN
parameters to remove all VLANs.
Syntax
[ no ] mst instance-id vlan vlan-range
instance-id - Instance identifier of the spanning tree. (Range: 0-
4094)
vlan-range - Range of VLANs. (Range: 1-4094)
Default Setting
none
Command Mode
MST Configuration
Command Usage
◆
Use this command to group VLANs into spanning tree instances. 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 Internal Spanning Tree (MSTI 0)
that connects all bridges and LANs within the MST region. This switch
supports up to 64 instances. You should try to group VLANs which cover
the same general area of your network. However, remember that you must
configure all bridges within the same MSTI Region (
page 422 ) with the
same set of instances, and the same instance (on each bridge) with the