[c-nsp] MSTP +STP

Tima Maryin tima at cplire.ru
Tue Aug 17 13:43:12 EDT 2004


Hello!


Yes, i think, it's possible.

First of all, you'd think about vlan to instance mapping.

This is a quite good link about it:
http://www.cisco.com/en/US/products/hw/switches/ps646/products_configuration_guide_chapter09186a00801ce0a9.html


Alexandra Alvarado wrote:

> Hello,
> 
> I'm new in MSTP, I need to use MSTP because we are going to use more than 128 vlans and STP is not enough,
> my question is: I need to make interact switches cisco and switches non cisco, in switches cisco I'll use MSTP 
> but in switches non cisco I need to use STP and pass some vlans.
> 
> The idea is the next:
> 
> -------------------------------                     ------------------------------
> | switch non cisco I  |    ------------     | switch non cisco II |
> -------------------------------                     ------------------------------
> 
>             |                STP                        |
> 
> -------------------------                     ------------------------
> | switch cisco I  |    ------------     | switch cisco II |
> -------------------------                     ------------------------
>             |                 MSTP                |
> -------------------------                     -------------------------
> | switch cisco III |    -------------    | switch cisco IV |
> -------------------------                     -------------------------
> 
> Is it posible???
> 
> Where I can find an example???
> 
> I have read that if I want to comunicate vlans between MST and STP I need to use IST instance,
> in my case I need to use STP the range of vlans 201 to 300. Is it right???



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