4. TRANSPORT PROTOCOLS

• 4.1 USER DATAGRAM PROTOCOL -- UDP
  • 4.1.1 INTRODUCTION
  • 4.1.2 PROTOCOL WALK-THROUGH
  • 4.1.3 SPECIFIC ISSUES
    • 4.1.3.1 Ports
    • 4.1.3.2 IP Options
    • 4.1.3.3 ICMP Messages
    • 4.1.3.4 UDP Checksums
    • 4.1.3.5 UDP Multihoming
    • 4.1.3.6 Invalid Addresses
  • 4.1.4 UDP/APPLICATION LAYER INTERFACE
  • 4.1.5 UDP REQUIREMENTS SUMMARY
• 4.2 TRANSMISSION CONTROL PROTOCOL -- TCP
  • 4.2.1 INTRODUCTION
  • 4.2.2 PROTOCOL WALK-THROUGH
    • 4.2.2.1 Well-Known Ports: RFC-793 Section 2.7
    • 4.2.2.2 Use of Push: RFC-793 Section 2.8
    • 4.2.2.3 Window Size: RFC-793 Section 3.1
    • 4.2.2.4 Urgent Pointer: RFC-793 Section 3.1
    • 4.2.2.5 TCP Options: RFC-793 Section 3.1
    • 4.2.2.6 Maximum Segment Size Option: RFC-793 Section 3.1
    • 4.2.2.7 TCP Checksum: RFC-793 Section 3.1
    • 4.2.2.8 TCP Connection State Diagram: RFC-793 Section 3.2, page 23
    • 4.2.2.9 Initial Sequence Number Selection
    • 4.2.2.10 Simultaneous Open Attempts: RFC-793 Section 3.4, page 32
    • 4.2.2.11 Recovery from Old Duplicate SYN: RFC-793 Section 3.4, page 33
    • 4.2.2.12 RST Segment: RFC-793 Section 3.4
    • 4.2.2.13 Closing a Connection: RFC-793 Section 3.5
    • 4.2.2.14 Data Communication: RFC-793 Section 3.7, page 40
    • 4.2.2.15 Retransmission Timeout: RFC-793 Section 3.7, page 41
    • 4.2.2.16 Managing the Window: RFC-793 Section 3.7, page 41
    • 4.2.2.17 Probing Zero Windows: RFC-793 Section 3.7, page 42
    • 4.2.2.18 Passive OPEN Calls: RFC-793 Section 3.8
    • 4.2.2.19 Time to Live: RFC-793 Section 3.9, page 52
    • 4.2.2.20 Event Processing: RFC-793 Section 3.9
    • 4.2.2.21 Acknowledging Queued Segments: RFC-793 Section 3.9
  • 4.2.3 SPECIFIC ISSUES
    • 4.2.3.1 Retransmission Timeout Calculation
    • 4.2.3.2 When to Send an ACK Segment
    • 4.2.3.3 When to Send a Window Update
    • 4.2.3.4 When to Send Data
    • 4.2.3.5 TCP Connection Failures
    • 4.2.3.6 TCP Keep-Alives
    • 4.2.3.7 TCP Multihoming
    • 4.2.3.8 IP Options
    • 4.2.3.9 ICMP Messages
    • 4.2.3.10 Remote Address Validation
    • 4.2.3.11 TCP Traffic Patterns
    • 4.2.3.12 Efficiency
  • 4.2.4 TCP/APPLICATION LAYER INTERFACE
    • 4.2.4.1 Asynchronous Reports
    • 4.2.4.2 Type-of-Service
    • 4.2.4.3 Flush Call
    • 4.2.4.4 Multihoming
  • 4.2.5 TCP REQUIREMENT SUMMARY