From: Manny Gonzalez (manny@xxxxxxx)
Date: Sun Jul 07 2002 - 00:23:39 GMT-3
None of the solutions for HARD questions relating to Spanning Tree are digestib
le:
Q. Make Sure Switch is always the root.
A. Well, not really doable. Placing the priority at ZERO can still be overridde
n
by a bridge with a lower ID :-)
Q. Make sure bridge is NEVER the root.
A. Well, the sure way is to disable Spanning Tree. You can always become root
with PRIORITY 65535 if there is someone with that priority and a HIGHER ID on
the bridge.
So yes, none are easy. However, my suggestion is, "don't go reading too much
into a question" This is good advice given to me and I applied in the lab when
I
took it. Actually, I have known many people who have failed the lab because the
y
overanalyzed questions, NOT because they did not know the right answer.
Bottom line is, if I was asked to make sure a bridge never becomes root, I will
probably make it 65535 instead of turning off STP. Turning it off may be too
harsh because you are making it worse by not being able to prevent loops.
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