Re: spanning-tree mode mst

From

Eugene Andreev (2:5020/400)

To

Dmitry Kolvakh (2:5054/37.63)

Date

2009-05-15T14:19:42Z

Area

RU.CISCO

From: Eugene Andreev <r00t@johnsmith.ru>

  > 1) Avoid mapping any VLANs onto instance 0.
> 
> п╜я┌п╬ п╨п╟п╨? п░ п╥п╟я┤п╣п╪ я┌п╬пЁп╢п╟ я█я┌п╬я┌ instance п╫я┐п╤п╣п╫?

IEEE 802.1s implementation does not send a BDPU for each active STP 
instance, nor does it encapsulate VLAN list in each configuration 
message. Instead of that, a special STP instance number 0 called 
Internal Spanning Tree (IST or MSTI0) is designated to carry all 
Б─°signalingБ─¤ information.

п  п№я─п╬я┤я┌п╣п╫п╦я▌ я─п╣п╨п╬п╪п╣п╫п╢я┐п╣я┌я│я▐ п╡п╬я┌ я█я┌п╬я┌ п╥п╟п╪п╣я┤п╟я┌п╣п╩я▄п╫я▀п╧ я┌п╣п╨я│я┌:
http://blog.internetworkexpert.com/2008/07/27/mstp-tutorial-part-i-inside-a-region/


- ---
Eugene
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