Setup MSTP On 8320 / 8400 / 8325 VSX

By esupport posted Jul 29, 2019 09:32 AM

  
Requirement:

1. Aruba OS-CX : Firmware Version 10.02.xxxx

2. Switches in VSX

3. Configuring MST

4. Aruba OS-CX Switches configured as non-root switch.

In 10.2 Multiple MSTP regions are not supported. Multiple instances are supported though

 



Solution:

Below parameters should be same on all the switches participating in spanning tree in the network

 

STP region configuration for MSTP on all the switches in the network (MSTP)

1. config-name

2. config-revision

 

Additionally, the below needs to be same on VSX Pair switches

STP mode MSTP
STP region configuration for MSTP (config-name and config-revision)
STP instance to VLAN mapping
STP instance priority

 



Configuration:

 

STP region configuration for MSTP on all the switches in the network (MSTP)

 

spanning-tree config-name Region-One

spanning-tree config-revision 1

 

Configuration on both VSX Pair

 

vlan <VLAN Mapping>

spanning-tree spanning-tree priority <Priority>

spanning-tree config-name <Region Name> 

spanning-tree config-revision <Revision Number>



Verification

show spanning tree MST

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