Cellular Digital Packet Data (CDPD) - Bnrg.cs.berkeley.edu ...

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<strong>CDPD</strong> Protocols• Subnetwork Dependent Convergence Protocol(SNDCP)– Connectionless mode subnetwork service– Provides the following functions:» Mapping of data primitives» Segmentation/reassembly of NPDUs» Compression/elimination of r<strong>edu</strong>ndant protocol controlinformation» Encryption/decryption» Network layer to data link layer multiplexing to supportmultiple network layer protocols on top of the data link16
Mobile Network RegistrationProtocol (MNRP)• Connectionless, exchanges configurationinformation between M-ES and MD-IS– Network Entity Identifier (NEI)– Subnet Point of Attachment (SNPA)• Provides following functions:– Registration/deregistration of NEIs with MD-IS– Authentication of M-ES and its NEI– Admission of M-ES to services offered by MD-IS• Mobile Home Function– Location Directory , redirection and forwarding• Mobile Serving Function– Registration Directory, readdress “decapsulation”service17
Page 1 and 2: CS 294-7: Cellular Digital PacketDa
Page 3 and 4: Cellular Digital Packet DataISInter
Page 5 and 6: CDPD Network ArchitectureColor Code
Page 7 and 8: CDPD Entities• Fixed End Systems
Page 9 and 10: CDPD Entities• Mobile Data Base S
Page 11 and 12: CDPD ProtocolsNetwork Layer DataNet
Page 13 and 14: CDPD Protocols• MAC Layer- Arbitr
Page 15: CDPD Protocols• Mobile Data Link
Page 19 and 20: M-ES Channel Hopping• Initiation
Page 21 and 22: Network Layer Mobility:CDPD vs. Mob
Page 23 and 24: Network Layer Mobility:CDPD vs Mobi

Cellular Digital Packet Data (CDPD) - Bnrg.cs.berkeley.edu ...

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