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      DTE                          DCE

(station, router) ** ------ ** (modem) <==== provajderskij link



EIA/TIA-232
EIA/TIA-449
V.24
V.35
X.21
G.703
EIA.530
HSSI



Data link encapsulation dlya sinhronnyh linij:

Dedicated WAN
SDLC        - Synchronous Data Link Control
HDLC        - High-level Data Link Control
LAPB        - Link Access Procedure Balanced
PPP         - Point-to-Point Protocol

Switched WAN
Frame Relay - uproshchenaya versiya HDLC frejminga
X.25
ISDN

Last-modified: Sun, 27 Sep 1998 07:09:41 GMT
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