Comware

I am trying to build a network using MSTP on HPE OfficeConnect 1920, as follows:

https://yadi.sk/i/dOlxH_swp47PmQ 

RI1

spanning-tree mst priority 0 8192

spanning-tree mst instance 1

spanning-tree mst priority 1 8192

spanning-tree mst instance 2

spanning-tree mst priority 2 16384

EI1

spanning-tree mst priority 0 16384

spanning-tree mst instance 1

spanning-tree mst priority 1 4096

spanning-tree mst instance 2

spanning-tree mst priority 2 8192

WI1

spanning-tree mst priority 0 16384

spanning-tree mst instance 1

spanning-tree mst priority 1 8192

spanning-tree mst instance 2

spanning-tree mst priority 2 16384

 

RI2

spanning-tree mst priority 0 16384

spanning-tree mst instance 1

spanning-tree mst priority 1 16384

spanning-tree mst instance 2

spanning-tree mst priority 2 8192

EI2

spanning-tree mst priority 0 32768

spanning-tree mst instance 1

spanning-tree mst priority 1 8192

spanning-tree mst instance 2

spanning-tree mst priority 2 4096

WI2

spanning-tree mst priority 0 16384

spanning-tree mst instance 1

spanning-tree mst priority 1 16384

spanning-tree mst instance 2

spanning-tree mst priority 2 8192

 

RI3

spanning-tree mst priority 0 8192

spanning-tree mst instance 1

spanning-tree mst priority 1 16384

spanning-tree mst instance 2

spanning-tree mst priority 2 16384

EI3

spanning-tree mst priority 0 8192

spanning-tree mst instance 1

spanning-tree mst priority 1 16384

spanning-tree mst instance 2

spanning-tree mst priority 2 16384

WI3

spanning-tree mst priority 0 4096

spanning-tree mst instance 1

spanning-tree mst priority 1 16384

spanning-tree mst instance 2

spanning-tree mst priority 2 32768

Hi @vmuhanov !

In my opinion "correctness" of a configuraiton should be measured against the target. There is only one thing that really matters - what is your idea about this network, how do you want it to work. It's you who decides what is needed. If a configuration does what you want, it is correct. It may be not optimal, not scalable, but it will be correct if correctness is all you care about.

Will this configuration work? Yes, MSTP will take care and provide you the loop-free network. Is this design optimal - the whole idea of building relatively large (outside small office) network using L2 access swithes seems very questionable to me, but you are the one who takes the decision, if you want to go this way, good luck. In overall your picture reminds me one famous article by Petr Lapukhov - https://blog.ine.com/2008/09/24/mstp-tutorial-part-ii-outside-a-region Is it the source of your network design inspiration? (-: If those clouds are regions like in Petr's article I hope you understand that from 6 inter-region links you will have only 2 links forwarding. But in overall it should work and MSTP is definitely the least problem of this network (-: