[Rstplib-users] RE: Max Bridge Diameter

[Alexandr R. <ter...@ya...>]

Hmmm...
Are the Alex's consideration & conclusion right ?
It seems to be drastic, isn't it ?
May you provide more comments, please ?
Thanx, Imagine 

Apropos, Alex, what is "Open Source RSTP" ?

--- Mick Seaman [mailto:mic...@ie...]:
> 
> The assumption in .1w is that legacy STP  bridges
> may always 
> be present so
> Abnnex B always applies.
>  
> --- On January 02, 2002 3:22 AM Alex Ruzin wrote:

> > Hi,
> > 
> > We didn't find in 802.1w the reason for the upper
> boundaries on
> > Bridge Max Age and Maximum Bridge Diameter. We are
> testing a scenario
> > where there are no legacy STP Bridges in the LAN
> so Annex B is not
> > relevant.
> > 
> > Let's consider a chain of n RSTP Bridges:
> > 
> > B1----B2-----B3-----........ 
> ---------Bx--------........---------Bn
> > 
> > B1 is the Root bridge.
> <snip>
> 
> > 
> > Could you help us with the following questions:
> > 1. Did we make a mistake in the above
> calculations?
> > 2. What is the theoretical background of the
> statement "the greater of
> > (1/16th Max
> > Age) and 1 second, and rounded to the nearest
> whole second" in Clauses
> > 17.19.19 and 17.19.21 ?
> > 3. What is a reasonable limitation of RSTP LAN
> diameter ?
> > 
> > Best regards,
> > Alex
> > 


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