I would like to know, what should I concern about when configuring MSTP Mode?? it gets me confused alittle bit!!! Have u implemented it before?? And is there any restriction that i should concern about? My last point, if numbers of vlans pointed to a single MST is unlimited, then there is no point of using 65 MST cause I can map all my vlans supported on the switch to a single MST!!!
I have never implemented MSTP so cannot give u deep insight about the same.
Yes you can have all vlans in same MSTP instance but then it will bahave like a CST which is common spanning tree instance for all vlans for me which will bring all the disadvantages which you get in CST.
Let Bobby or come Cisco TAC engineer answer this in detail.
As Ankur replied, using MST (MIST) brings the concept of CST into the design.. One of the differences which makes MIST better is the ability to have several instances (65 as stated).
The problem with a CST is that all of your VLAN's must behave similar.. that is, you can't block just one and one VLAN off a trunk if you expect to have redundancy intact. In MIST you can consider each instance a separate CST, so you'll have to design your LAN with a maximum of 65 different spreadout's.. This should be enough for your needs...
You should read this document thoroughly *before* you attempt using MISTP:
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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