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MSTP between 2 regions

  • 29 May 2014
  • 0 replies


I have two sites in my network, each one with a different region of mstp, each one with domains that don't contain the same vlans.

Now I want to connect both sites by a layer two connection and share some new vlans so I create a new mstp domain with these vlans in the switches of both sites.

The problem is that the region id isn't the same so I suppose that the bpdu communication will be done by the cist domain of both sites.

My question is if you need to add the vlans and port to the cist domain or the switches of each region automatically get it from all their msti domains.

All my switches are BD8K with XEOS12.6

Thanks for any answer.

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