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What identifies a TCP socket?
In the standard Internet protocols TCP and UDP, a socket address is the combination of an IP address and a port number, much like one end of a telephone connection is the combination of a phone number and a particular extension.
What two things constitute a TCP IP socket?
A socket is one endpoint of a two-way communication link between two programs running on the network. A socket is bound to a port number so that the TCP layer can identify the application that data is destined to be sent to. An endpoint is a combination of an IP address and a port number.
Can two sockets bind 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.
Can TCP send and receive on same port?
A TCP connection has two ends and permits communication in both directions. Each end’s sending port is the other end’s receiving port. That is always the case. If you’re asking if each end’s sending port can be the same as the other end’s receiving port, the answer is yes.
Can a process have multiple sockets?
yes , a process could have more that one socket (combination of ip address and port address) but at a particular instance of time it can be only one..
How are TCP and UDP sockets the same?
TCP socket and UDP socket are all the same, for most part. TCP and UDP protocols are different because TCP requires a special handshake confirming the connection. TCP protocol uses TCP packets and UDP uses UDP packets which are similar except for their headers.
How is a port identified in a TCP socket?
In case of the TCP, a port is a 16 bit integer, but there are other protocols as well (for example, on unix sockets, a “port” is essentially a string). The main problem is the following: if an incoming packet arrives, the kernel can identify its socket by its destination port number.
Can a client have more than one TCP socket?
@FernandoGonzalezSanchez: A single client can have multiple TCP sockets bound to the same local IP/Port pair as long as they are connected to different remote IP/Port pairs. That is not specific to Windows, that is part of how TCP works in general.
Can a socket be connected to more than one port?
A connected socket is assigned to a new (dedicated) port, so it means that the number of concurrent connections is limited by the number of ports, unless multiple sockets can share the same port. So the question. A server socket listens on a single port.