Specifications

create stp instance_id
Purpose Used to create a STP instance ID for MSTP.
Syntax create stp instance_id <value 1-15>
Description This command allows the user to create a STP instance ID for the Multiple Spanning Tree Protocol.There are
16 STP instances on the Switch (one internal CIST, unchangeable) and the user may create up to 15 instance
IDs for the Switch.
Parameters <value 1-15> – Enter a value between 1 and 15 to identify the Spanning Tree instance on the Switch.
Restrictions Only administrator-level users can issue this command.
Example usage:
To create a spanning tree instance 2:
AT-9724TS:4# create stp instance_id 2
Command: create stp instance_id 2
S u c c e s s .
A T - 9 7 2 4 T S : 4 #
config stp instance_id
Purpose Used to add or delete an STP instance ID.
Syntax config stp instance_id <value 1-15> [add_vlan | remove_vlan] <vidlist>
Description This command is used to map VIDs (VLAN IDs) to previously configured STP instances on the Switch by
creating an instance_id.A STP instance may have multiple members with the same MSTP configuration.There is
no limit to the number of STP regions in a network but each region only supports a maximum of 16 spanning
tree instances (one unchangeable default entry).VIDs can belong to only one spanning tree instance at a time.
Note that switches in the same spanning tree region having the same STP instance_id must be mapped
identically, and have the same configuration revision_level number and the same name.
Parameters <value 1-15> – Enter a number between 1 and 15 to define the instance_id.The Switch supports 16 STP
regions with one unchangeable default instance ID set as 0.
add_vlan – Along with the vid_range <vidlist> parameter, this command will add VIDs to the previously
configured STP instance_id.
remove_vlan – Along with the vid_range <vidlist> parameter, this command will remove VIDs to the previously
configured STP instance_id.
<vidlist> – Specify the VID range from configured VLANs set on the Switch. Supported VIDs on the Switch range
from ID number 1 to 4094.
Restrictions Only administrator-level users can issue this command.
Example usage:
To configure instance id 2 to add VID 10:
AT-9724TS:4# config stp instance_id 2 add_vlan 10
Command: config stp instance_id 2 add_vlan 10
S u c c e s s .
A T - 9 7 2 4 T S : 4 #
To remove VID 10 from instance id:
AT-9724TS:4# config stp instance_id 2 remove_vlan 10
Command: config stp instance_id 2 remove_vlan 10
S u c c e s s .
A T - 9 7 2 4 T S : 4 #
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Allied Telesyn AT-9724TS High-Density Layer 3 Stackable Gigabit Ethernet Switch • Command Line Interface Reference Manual