Switching Commands
35
M4100 Series ProSAFE Managed Switches
spanning-tree mst instance
This command adds a multiple spanning tree instance to the switch. The parameter
<mstid> is a number within a range of 1–4094, that corresponds to the new instance ID to
be added. The maximum number of multiple instances supported by the switch is 4.
no spanning-tree mst instance
This command removes a multiple spanning tree instance from the switch and reallocates all
VLANs allocated to the deleted instance to the Common and Internal Spanning Tree. The
parameter <mstid> is a number that corresponds to the desired existing multiple spanning
tree instance to be removed.
spanning-tree mst priority
This command sets the bridge priority for a specific multiple spanning tree instance. The
parameter <mstid> is a number that corresponds to the desired existing multiple spanning
tree instance. The priority value is a number within a range of 0–61440 in increments of
4096.
If you specify 0 (defined as the default CIST ID) as the <mstid>, this command sets the
Bridge Priority parameter to a new value for the Common and Internal Spanning Tree. The
bridge priority value is a number within a range of 0–61440. The twelve least significant bits
are masked according to the 802.1s specification. This causes the priority to be rounded
down to the next lower valid priority.
no spanning-tree mst priority
This command sets the bridge priority for a specific multiple spanning tree instance to the
default value. The parameter <mstid> is a number that corresponds to the desired existing
multiple spanning tree instance.
Default none
Format spanning-tree mst instance <mstid>
Mode Global Config
Format no spanning-tree mst instance <mstid>
Mode Global Config
Default 32768
Format spanning-tree mst priority <mstid> <0-61440>
Mode Global Config
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