TCP/IP Layer 4 Protocols

Description

CCENT 5.Fundamentals of TCP/IP Transport and Applications Mind Map on TCP/IP Layer 4 Protocols, created by jce299792458 on 05/10/2013.
jce299792458
Mind Map by jce299792458, updated more than 1 year ago
jce299792458
Created by jce299792458 almost 11 years ago
308
1

Resource summary

TCP/IP Layer 4 Protocols
  1. Features
    1. Multiplexing using ports
      1. Function that allows receiving hosts to choose the correct application for which the data is destined, based on the port number.
        1. IP address,Transport protocol, Port number (10.1.1.2, TCP, port 80)
          1. Hosts typically allocate dynamic port numbers starting at 1024 because the ports below 1024 are reserved for well-known applications.
            1. 20
              1. TCP, FTP data
              2. 21
                1. TCP,FTP control
                2. 22
                  1. TCP, SSH
                  2. 23
                    1. TCP, Telnet
                    2. 53
                      1. UDP, TCP, DNS
                        1. TCP for Zone Transfer UDP for DNS Queries
                      2. 25
                        1. TCP, SMTP
                        2. 67,68
                          1. UDP, DHCP
                            1. UDP port 67 for sending data to the server, and UDP port 68 for data to the client
                          2. 69
                            1. UDP, TFTP
                            2. 80
                              1. TCP, HTTP (WWW)
                              2. 110
                                1. TCP, POP3
                                2. 161
                                  1. UDP, SNMP
                                  2. 443
                                    1. TCP, SSL
                            3. Error recovery (reliability)
                              1. Process of numbering and acknowledging data with Sequence and Acknowledgment header fields.
                              2. Flow control using windowing
                                1. Process that uses window sizes to protect buffer space and routing devices from being overloaded with traffic.
                                2. Connection establishment and termination
                                  1. Process used to initialize port numbers and Sequence and Acknowledgment fields.
                                  2. Ordered data transfer and data segmentation
                                    1. Continuous stream of bytes from an upper-layer process that is “segmented” for transmission and delivered to upper-layer processes at the receiving device, with the bytes in the same order.
                                  3. Transmission Control Protocol
                                    1. Provides error recovery
                                      1. Relies on IP for end-to-end delivery of the data, including routing issues
                                      2. using 2 bits inside the flag fields of the TCP header. Called the SYN and ACK flags
                                        1. SYN means “synchronize the sequence numbers”
                                          1. a three-way handshake must complete before data transfer can begin.
                                            1. SYN, DPORT=80, SPORT=1027 SYN, ACK, DPORT=1027, SPORT=80 ACK, DPORT=80, SPORT=1027
                                              1. TCP Connection Termination
                                                1. Four-way termination sequence
                                          2. Connection-oriented protocol
                                            1. Requires an exchange of messages before data transfer begins, or that has a required preestablished correlation between two endpoints
                                          3. User Datagram Protocol
                                            1. Does not perform error recovery
                                              1. Connectionless protocol
                                                1. Does not require an exchange of messages and that does not require a preestablished correlation between two endpoints
                                              2. QoS
                                                1. Bandwidth
                                                  1. The volume of bits per second needed for the application to work well
                                                  2. Delay
                                                    1. The amount of time it takes one IP packet to flow from sender to receiver
                                                    2. Jitter
                                                      1. The variation in delay
                                                      2. Loss
                                                        1. The percentage of packets discarded by the network before they reach the destination, which when using TCP, requires a retransmission.
                                                      Show full summary Hide full summary

                                                      Similar

                                                      What were the Cause and Consequences of The Cuban Missile Crisis October 1962
                                                      matthewnr73
                                                      B1 Biology
                                                      Emily Needham
                                                      AS Unit 1 Physics Flashcard Deck
                                                      Callum McClintock
                                                      MCAT Review: Human Skeletal System
                                                      toronto416
                                                      How to revise
                                                      KimberleyC
                                                      GCSE Chemistry C1 (OCR)
                                                      Usman Rauf
                                                      Checking out me History by John Agard
                                                      Eleanor Simmonds
                                                      Memory: AS Psychology
                                                      rae_olamide_xo
                                                      GCSE geography natural environment
                                                      Archie Horwood
                                                      AS English language terminology revision
                                                      Caitlin Hadfield
                                                      New PSBD Question
                                                      gems rai