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Handshaking is a technique of communication between two entities. However, within TCP/IP RFCs, the term "handshake" is most commonly used to reference the TCP three-way handshake. For example, the term "handshake" is not present in RFCs covering FTP or SMTP. One exception is Transport Layer Security, TLS, setup, FTP RFC 4217.
Multipath TCP adds new mechanisms to TCP transmissions: The subflow system, used to gather multiple standard TCP connections (the paths from one host to another). Subflows are identified during the TCP three-way handshake. After the handshake, an application can add or remove some subflows (subtypes 0x3 and 0x4).
The window scale option is used only during the TCP 3-way handshake. The window scale value represents the number of bits to left-shift the 16-bit window size field when interpreting it. The window scale value can be set from 0 (no shift) to 14 for each direction independently.
TCP is a connection-oriented protocol which adds complexity and processing overhead. These aspects include: Connection establishment using the "3-way handshake" (SYNchronize; SYNchronize-ACKnowledge; ACKnowledge). Acknowledgment of packets as they are received by the far end, adding to the message flow between the endpoints and thus the ...
In computer networking, TCP Fast Open (TFO) is an extension to speed up the opening of successive Transmission Control Protocol (TCP) connections between two endpoints. It works by using a TFO cookie (a TCP option), which is a cryptographic cookie stored on the client and set upon the initial connection with the server. [ 1 ]
Outlook for Mac – Follow steps under "Update your email settings in Outlook for Mac." Windows 10 Mail – Follow steps for "Add an account using advanced setup." Windows Live Mail – Follow steps "To change server settings for your email service provider." IncrediMail – Follow steps "How do I reconfigure my email account?"
Update server settings Most email software and applications have an account settings menu where you'll need to update the IMAP or POP3 settings. When entering your account info, make sure you use your full email address, including @verizon.net, and that the SSL encryption is enabled for incoming and outgoing mail.
Such persistent connections reduce request latency perceptibly because the client does not need to re-negotiate the TCP 3-Way-Handshake connection after the first request has been sent. Another positive side effect is that, in general, the connection becomes faster with time due to TCP's slow-start-mechanism.