(Switched Hubs) , , (Switches), , , . () .
, , , , . , , , , . , . . . , , , , , .
, . , , . (Collision Domain) , , .
(. 13.6).
. 13.6.
() (Crossbar Matrix), . , , (. 13.6). , , , , (. 13.7).
. 13.7.
, MAC- , . . , , . MAC- , . , , . , . ( ).
. 6, 8, 12, 16 24 . , , , 4 . . ( ). , , .
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, , , :
- ( 30);
- ( 100);
- .
:
- , .
- . , , , , ( ).
, () , " 80/20". . , , 80 ( ) . 20 () , . , () . 80/20 .
, :
- (Cut-Through);
- (Store-and-Forward, SAF).
Cut-Through
Cut-Through , . , " " (on-the- fly).
, 6- , 10 . ( ), , , 150 . , , .
, , (, ) ( 512 ). , .
, . , , . , . , , .
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Cut-Through Interim Cut-Through Switching (ICS). , . FIFO 512 . , , . Cut-Through . (ICS) 400 Cut-Through.