frame relay , .25. , .25, frame relay.
frame relay , Ethernet. , , , . , frame realay, Ethernet, . - frame relay , frame relay. , , TCP NCP . , frame relay , Ethernet .
frame relay - . , G.703 ISDN. - 10-6.
frame relay , , . frame relay - 2 /, .
frame relay . , , . frame relay . , , frame relay, , . , .
- , , , , .
frame relay FRF.11. , .
frame relay , , 1/1, .
|
|
PVC frame relay , , . Ethernet FDDI LAP-F LAP-F . Internet RFC 1490 SNAP frame relay .
frame relay , , frame relay FRAD ( , , UNI frame relay, FRAD).
frame relay , SNA, , , SDLC ( IBM).
- , . , TCP/IP, , .
- , . , , . (Asynchronous Transfer Mode, ) , ISDN (Broadband-ISDN, B-ISDN).
, , , .
(, ) , , .
, - .
.
: 1/1, /, SDH STM-n, FDDI.
: IP, SNA, Ethernet, ISDN.
- Bell Labs 1968 . TDM , . TDM, STM (Synchronous Transfer Mode), . , , , .
|
|
. STDM (Statistical TDM), , , . , . , . - , , .
- . , - , . , . ISDN , . , .
B-ISDN , ISDN - , , , , , . , ISDN - , 30 /. ISDN , .
Forum IEEE, ITU-T ANSI. - , , , 1993 , . , Forum - , , . 5-10 . , , , , . , , , .