[c-nsp] Same VLAN in more than one MST Region

[Sebastian Wiesinger]

* Lawrence Wong <lawrencewong72 at yahoo.com> [2009-08-15 10:09]:
> While the docs stated that a VLAN can only exist in one instance in
> a region, I've not come across a doc which says that the same VLAN
> cannot exist in more than one region.
>
> i.e.
> 
> Region A, instance 0: Vlans 1 - 4094
> Region B, instance 0: Vlans 10,20,30
> Region B, instance 1: Vlans 40,50,60
> Region C, instance 0: Vlans 100-200
> Region D, instance 0: Vlans 100-200
> 
> 
> All switches are in the same network.
> 
> Would anyone be able to shed some light or experience on this?

This is no problem. You'll have region boundaries between the regions.

http://www.cisco.com/en/US/tech/tk389/tk621/technologies_white_paper09186a0080094cfc.shtml#region_bound

If this is is your first time with MST, please also read the "Common
Misconfigurations" chapter on the same page. MST can get quite tricky
sometimes.


Kind Regards,

Sebastian

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