ATM , . 1.321 1.413, : , ATM ATM (AAL), :
- CS - - OSI;
- SAR - - , , .
AAL (.6-5) , , , .. ATM:
- : , - CBR, , , , ;
- : , - VBR; ;
- : ( ), - VBR; .25 FR;
- D: ( ), - VBR; , "" , .
, : , , | , - : | , : .25 | D : - |
CS:AAL CBR | CS.AAL VBR | CS:AAL VBR | CS:AAL VBR |
SAR: AAL | SAR: AAL | SAR: AAL | SAR: AAL |
ATM | |||
(, DS3, PDH SDH/SONET) |
.6-5. ATM
SAR AAL ATM, .. , OSI, , . CS , ATM (CBR), (VBR) , , .
B-ISDN, ATM OSI
, B-ISDN OS1, AAL ATM OS1. ,
ATM 1 2 OSI, AAL - 2 3 OSI. 1-3 B-ISDN , , . 1.321, . .6-1.
|
|
6-1. , ATM
ALL | CS | ||
SAR | |||
ATM | (/) VPI/VCI / | ||
PL | - - / / (/) / / PDU | ||
PMD |
(PL) : , (PMD) ATM (). , , , 2 PL ATM ATM.