I am currently studying 802.1D and 802.1w, I have a few questions:
1. STP election is in the sequence of electing root bridge, root ports and than designated ports.
how does BPDUS are sent when the port at initial state is in blocking state ?
2.does this sequence counts for RSTP too?
If yes than when does proposal/agreement process comes into play for root/designated port roles?
from where does the proposal/agreement process starts? the books i have been referring , shows that the process starts from root bridge towards the edge switches. Kindly clearify...
3. following is an statement on cisco.com
"If the superior information received on the port causes the port to become a backup or alternate port,
RSTP sets the port to the blocking state but does not send the agreement message. The designated port
continues sending BPDUs with the proposal flag set until the forward-delay timer expires, at which time the port transitions to the forwarding state",but rstp doesnot use timers ?????????