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X.25
X.25
X.25 Layers in Relation to the OSI Layers
Format of a Frame
Addressing at the Frame Layer
Three Phases
of the
Frame Layer
Frame Layer and Packet Layer Domains
Virtual Circuits
in X.25
LCNs in X.25
LCN Assignments
PLP Packet Format
Categories of PLP Packets
Data Packets in the PLP Layer
RR, RNR, and REJ Packets
Other Control Packets
Control Packet Formats
X.25 Address Format
Triple-X Protocols
X.25 packet switched connection using ISDN
Packet call set-up using D- and B- Channel

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