I have read rstp but has some questions about it.

1. Does people need manually config a Alternate port?
2. Same qutsion above about backup port.
3. Why someone say RSTP convergence time within 1s?
from power up stage to stable stage?
or from topology change to stable stage?
or just for some special case?

TIA,
st

RSTP has the CONVERGENCE time around 1 second - it's time from topology
change (primary path goes down) to a stable state (previously blocked
redundant link goes into Forwarding mode). To speed up the time from the
port become active to the time it starts forwarding traffic, use "spanning
portfast" (or "spantree portfast" on IOS). There is no way to forward any
port until the router actually load and run all software (time from power
up).

Good luck,

Mike
CCNP, CCDP, CCSP, CCVP, MCSE W2K, MCSE+I, Security+, etc.
CCIE R&S (in progress), CCIE Voice (in progress)
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