Spanning-Tree Question.


Hi Guys.

I have this question bothering me, and well I’m asking it with a lot of shame, maybe something really basic is missing from me here.

Say that you have 2 Trunks connected to 2 Switches, by Spanning Tree, BPUD are sent, Some Switch would be elected as root and then some ports would be elected as Root Ports or Blocking in the Designated Switch.

F0/13 DF==Trunk==RF F0/13
F0/14 DF==Trunk==AB F0/14

DF: Desg FWD
RF: Root FWD
AB: Altn BLK

The whole life of Spanning-Tree from my point of vies is by the exchange of BPDU, if so, Port F0/14 which is Blocking at the other end and Forwarding at the Root, still send Broadcast/ Flooded Traffic/Multicast Traffic Right via the unblocked port, if so, then why if those so many paranoids BPDU are sent every 2 seconds by default by non-blocking port could not modify some flag to make the port more intelligent and recognize that the remote end is ending in dev/null ports??
That would release a congested switch with a Broadcast Storm a little more right?

Or maybe it does that, and I’m just asking something that I’ve had not read.

Thanks
Victor.-

Category: CCIE Study

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