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Why does a TCP server need more than one socket?
The reason is that TCP has two different kinds of state that you want to control, whereas UDP has only one. UDP, on the other hand, has no notion of “accepting connections”, so there is only one kind of state, and that is the set of buffered sent and/or received packets (regardless of their source and/or destination).
Why are there multiple TCP connections?
As the round trip time (RTT) between network grows, the amount of data that can flow across a TCP stream goes down. Replicating through multiple TCP connection for each RLINK enables the maximum utilization of high latency and high bandwidth networks. Single TCP connection usually fails to utilize the entire bandwidth.
Why does TCP need ports?
Ports are numbered and used as global standards to identify specific processes or types of network services. Much like before shipping something to a foreign country, you’d agree where you’d be shipping out of and where you’d have it arriving, TCP ports allow for standardized communication between devices.
How many connections can a TCP port have?
Ports are 16-bit numbers, therefore the maximum number of connections any given client can have to any given host port is 64K. However, multiple clients can each have up to 64K connections to some server’s port, and if the server has multiple ports or either is multi-homed then you can multiply that further.
Can multiple sockets listen to same port?
Yes. Multiple listening TCP sockets, all bound to the same port, can co-exist, provided they are all bound to different local IP addresses. Clients can connect to whichever one they need to.
Why is it possible to use the same port on TCP and UDP?
IP uses the “protocol” to pass to the next layer such as TCP and UDP though there are others. TCP and UDP each seperately differentiate connections based on the remaining 4 items. It’s possible to create other protocols on top of IP that use completely different (perhaps port-less) differentiation mechanisms.
Why does TCP Permit TCP greater than 1?
The additional information that you show now does confirm that what is being done is permit tcp greater than 1 is so that the log messages being generated will include the TCP and UDP port numbers.
How does a TCP connection between two computers work?
TCP Sockets. A connection between two computers uses a socket. A socket is the combination of IP address plus port. {outline]Each end of the connection will have a socket. {/outline] Imagine sitting on your PC at home, and you have two browser windows open.
What is the port 21 of a TCP connection?
The server protocol interpreter (server-PI) listenson the special well-known TCP port reserved for FTP control connections: port 21.The user-PI initiates the connection by opening a TCP connection from the userdevice to the server on this port. It uses an ephemeral port number as its sourceport in the TCP connection.