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Hace 2 días · The urgent pointer flag in the TCP Flag allows us to mark a segment of data as 'urgent', while this urgent pointer field specifies where exactly the urgent data ends. To help you understand this, take a look at the following diagram:
Hace 4 días · We explain where the TCP Header and Segment are located in an Ethernet frame and also briefly view the available options in the TCP Header. Our easy-to-understand detailed diagrams help ensure all information provided is easily understood.
Hace 2 días · This section contains one of the most well-known fields in the TCP header, the Source and Destination port numbers. These fields are used to specify the application or services offered on local or remote hosts.
Hace 2 días · Working within the confinements of the Transmission Control Protocol (TCP), TCP-RST-FROM-Client is a mechanism typically employed to expedite closing of connections. Simply put, it represents a signal fired from the client towards the server, distinctly conveying client's ambition to abruptly cease the current connection, bypassing ...
Hace 3 días · A TCP segment is the packetized unit of data at the transport layer of the OSI model. It represents a portion of a larger message that is being sent from one application to another over a network. TCP segments contain essential information such as source and destination port numbers, sequence numbers, acknowledgment numbers, control flags, and the actual data being transmitted.
Hace 4 días · TCP breaks up data received from the application layer into small pieces known as segments. To provide reliable transmission, the segments are numbered before being passed to the IP process, which encapsulates them into packets.
Hace 4 días · 4-way handshaking. TCP Connection의 종료는 4-way handshaking을 거친다. 연결 종료는 서로 연결이 성립된 상태에서 시작한다. 클라이언트가 통신을 종료하고자 FIN을 보낸후, FIN_WAIT 1 상태로 대기한다. FIN을 받은 서버는 상태를 CLOSE_WAIT으로 변경하고 ACK를 보낸다. 해당 ACK를 ...
