Token Ring, Ethernet, , , . , , Ethernet, , . , (token).
Token Ring IBM 1984 , IEEE 802, 1985 802.5.
Token Ring , Ethernet. . - . , . , .
. -. , . , 3 . 7 , .
Token Ring.
Token Ring :
;
;
.
1).
, .
1
1
1
(Start Delimiter, SD) , , . : JK0JK000. .
(Access Control) : , , RRR, , , , RRR .
, 1, , .
1 0 , . , 1, , . , . , .
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(End Delimeter, ED) . , JK1JK1, : I .
I (Intermediate) , (I=0) (I=1).
(Error) . 0 - , , , 1, .
2) .
, , .
, :
(Start Delimiter, SD) 1 ;
(Frame Control, FC) 1 ;
(Destination Address, DA) - 2 6 ;
(Source Address, SA) 2 6 ;
(INFO) ;
(Frame Check Sequence, FCS) 4 ;
(End Delimeter, ED) 1 ;
(Frame Status, FS) 1 .
( -), (LLC-). Token Ring 6 -. FC (MAC LLC), MAC, , .
3) , .
Token Ring.