3
Spanning Tree (STP) . , STP OSI (L2). :
?
3 Spanning Tree. :
- (root port)
- (designated port)
- ( )
, Spanning Tree:
- - , . , . BPDU .
BPDU (Bridge Protocol Data Unit) , (root) STP (Spanning Tree Protocol).
- , BPDU.
- MAC .
- , BPDU MAC - .
- .
STP
- (root) .
- (root) .
- (designated) .
- STP.
(ID) . (switch ID) : .
- .
- MAC
: 24577.00:00:00:00:00:01 / . MAC
, . , MAC .
. , .
:
- .
- .
, - .
- () .
- ( ).
, (Bridge ID), (Port ID).
.
Spanning Tree:
