In a virtual circuit network, there is an end-to-end connection in the sense that each router along the path must maintain state for the connection; hence the terminology connection service.
In a connection-oriented transport service over a connectionless network layer, such as TCP over IP, the end systems maintain connection state, but the routers have no notion of any connections; hence the terminology connection-oriented service.
Connection-Oriented means that when devices communicate, they perform handshaking to set up an end-to-end connection. Connection-Oriented systems can only work in bi-directional communications environments. Connection-less means that no effort is made to set up a dedicated end-to-end connection. Walkie-talkies, or Citizens Band radios are a good examples of connection-less communication.
datagram subnet is connection oriented network.
two common designs for desktop computer are1 horizontally oriented system unit2 vertically oriented tower
Acknowledged connection-oriented service-the source and destination machines establish a connection before any data are transferred.Each frame sent is numbered and the data link layer guarantees that each frame sent is received. by Dardanello
If FTP did not have TCP working with it, it could be considered connectionless. TCP is connection oriented and it verifies the FTP transfers have been received. Therefore it is considered Connection Oriented. If FTP used UDP it would be considered connectionless as UDP just sends the data and never checks to see if it all made it to the recipient -
Layer 4 (Transport)
transport layer
its depend on which protocol used in transport layer
application presentation session **transport network The transport layer of the osi model
They can be both. E.g. MPLS-TP or Connection-Oriented-Ethernet (COE) are connection oriented.
No
Connection-oriented
UDP and TCP both are transport layer protocols. UDP is connection less and TCP is connection oriented. UDP is preferred over TCP when large amount data is to be sent like on skype or video conferencing .
Connection-Oriented means that when devices communicate, they perform handshaking to set up an end-to-end connection. Connection-Oriented systems can only work in bi-directional communications environments. Connection-less means that no effort is made to set up a dedicated end-to-end connection. Walkie-talkies, or Citizens Band radios are a good examples of connection-less communication.
Connection oriented is more reliable because there is an acknowledgment received from data receiver (destination) that the data is receiving and transfer is successful which is not received from connection less protocol.
In connection oriented network first is confirmation of establishment of connection then only communication can take place while in connection less without establishment confirmation the communication start up.
Different from a connectionless protocol, a connection-oriented protocol guaranties the delivery of the information. An example of connection-oriented protocol is (TCP) and a connectionless protocol is (UDP). page/926 A+