frame relay is a packet switching technique used to carry digital data over frame relay cloude .
frame relay is connection oriented which mean must establish connection between soucre & destention before transmit data .
the frame relay network provides a permanent virtual circuit (PVC), which means that the customer sees a continuous, dedicated connection
Frame relay puts data in variable-size units called "frames"
Frame relay has its technical base in the older X.25 packet-switching technology which were designed for transmitting analog data
maine terms in frame relay :
1-DLCI هو عنونة لل vc
2-LMI رسالة بين رواتر وسويتش
6-Committed Information Rate
انا اسف هى حاجة بسيطة جدا