Packet Switched WAN connection

• packets travel through public data network
• need for source and destination packet information
• PADs or packet assembler/disassemblers are necessary
• two major types of packet switched networks
  • connectionless
  • connection oriented
  • look at comparison chart on p. 320 in Goldman
• packet switched transmission options:
  • X.25
  • Frame Relay
  • SMDS
  • B-ISDN