WAN PROTOCOLS
CPE=CUSTOMER PRIMISES EQUIPMENT
IS A DEVICE THAT IS INSTALLED BY ISP TO THE CUSTOMER SITE
CO=CENTRAL OFFICE
IS A CENTRAL POINT ,WHERE ALL CONNECTIONS ARE CREATED AND MANAGE CONNECTIONS CENTRALLY.
DP=DEMACATION POINT
IS THE POINT WHERE ISP'S RESPOSIBILTIES ENDS
TOLL-NETWORK: IS THE DISTANCE THAT CONNECTS ALL CENTRAL OFFICE TOGETHER.
LOCAL LOOP: IS THE DISTANCE BETWEEN DEMARCATION POINT AND THE NEAREST CENTRAL OFFICE OR SWITCHING STATIONS.
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