Configuring Multiple Spanning Trees - AMX NXA-ENET8-2POE Operation/Reference Manual

STP and RSTP BPDUs are transmitted as untagged frames, and will cross any VLAN
boundaries.

1.
Click Configuration, Spanning Tree, Bridge Settings.
2.
Modify the required attributes.
3.
Click Save.

Configuring Multiple Spanning Trees

Use the MSTI Configuration 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.
FIG. 70 MSTI Configuration
MSTI Configuration parameters
Configuration Identification
• Configuration
Name2
• Configuration
Revision2
NXA-ENET8-2POE Gigabit Ethernet Layer 2 PoE Switch
Multiple Spanning Tree Protocol - 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.
To allow multiple spanning trees to operate over the network, you must configure a related set of

bridges with the same MSTP configuration, allowing them to participate in a specific set of
spanning tree instances.
A spanning tree instance can exist only on bridges that have compatible VLAN instance

assignments.
Be careful when switching between spanning tree modes. Changing modes stops all spanning-

tree instances for the previous mode and restarts the system in the new mode, temporarily
disrupting user traffic.
The name for this MSTI. (Maximum length: 32 characters; Default: switch's MAC
address)
The revision for this MSTI. (Range: 0-65535; Default: 0)
Configuring the NXA-ENET8-2POE
93