Data Communications Networking Devices - 4th Ed.pdf

CONTENTS _______________________________________________________________________ xiVersion ®eld 214Header length and total length ®elds 215Type of service ®eld 215Identi®cation and fragment offset ®elds 217Time to live ®eld 217Flags ®eld 217Protocol ®eld 217Source and destination address ®elds 217IP addressing 218Class A 219Class B 219Class C 219Host restrictions 219Subnetting 219Subnet masks 220Domain Name Service 221Name server 223TCP/IP con®guration 224IPv6 226Evolution 226Overview 227Addressing 229Migration issues 2332.6 SNA and APPN 235SNA concepts 235SSCP 236Network nodes 236The physical unit 236The logical unit 237Multiple session capability 237SNA network structure 237Types of physical units 239Multiple domains 239SNA layers 241Physical and data link layers 241Path control layer 241Transmission control layer 242Data ¯ow control services 242Presentation services layer 242Transaction service layer 243SNA developments 243SNA sessions 244LU-to-LU sessions 244Addressing 244Advanced Peer-to-Peer Networking APPN) 246APPC concepts 246APPN architecture 247Operation 248Route selection 2502.7ATM 251Overview 251Cell size 252Bene®ts 252The ATM protocol stack 255ATM Adaptation Layer AAL) 255The ATM Layer 256The Physical Layer 257ATM operation 257Components 258Network interfaces 258