Definition of Point-to-Point WAN Protocol
In a point-to-point protocol, the link that is provided has a single path and there is a pre-established path that is established from customer through the carrier network including telephone company, to remote network (Soares et al., 2015). The point-to-point networks are generally leased from the carrier and therefore, the network is also known as leased lines. In this point-to-point network, there is pair of wires that are generally allocated and hardware facility that is connected with the line only. The price of this circuit generally differs according to the bandwidth that is provided to them and the distance in between the two points that are connected.
Two data transmission technologies related with Point-to-Point Protocol:
Point-to-point circuits are basically considered as a member of TCP/IP group of many protocols. There are many types of protocols available for the point-to-point protocol that are mostly done over the Ethernet. The transmission is done over Ethernet by PPPoE specification as well as by Asynchronous Transfer Mode (ATM) using the PPPoA specification (Choi et al., 2015). Point-to-point protocol also uses some other transferring techniques known as DSL (Digital Subscriber Line) for data transmission and also uses cable modems that mainly works as a back end service. The visibility of the point-to-point protocol is mostly declining over the time with the dial up services of modem.
Packet Switched WAN Protocol
Packet switching is basically considered as method of WAN switching, which deals with network devices sharing a particular link of point-to-point for the purpose of transporting the packets from one node to another that is from the source to the destination through the carrier network. There is also statistical multiplexing that is used by this circuit so that the device used can help to share the circuits over the network (Comer, 2015). Many types of packet switching WAN technologies are there including the ATM (Asynchronous Transfer Mode), SMDS (Switched Multimegabit Data Services), and Frame Relay. There are network device that are included in the packet switching circuits that shares link of point-to-point packets that are transported from one source to another destination over the carrier network. The statistical multiplexing is basically used for enabling the devices that uses packet switching data. In packet switching protocol, there is always a wastage of bandwidth because if a resource is allocated to a sender or a receiver, that particular circuit is not accessible to anyone else.
Two data transmission technologies associated with Packet Switched Protocol:
Many implementations of packet switching protocol are available that includes X.25, ATM (Asynchronous Transfer Mode), and MPLS (Multiprotocol Label Switching). The most common network that is used today is the internet network that is built with the Internet protocol mainly used for routing the packets from one host to a different host.
Data transmission mode generally happens in two ways that is connection packet switching and connectionless packets witching and connection oriented packet switching. In connectionless data transmission, each of the packets contains the complete addressing or the routing information and the packet is routed individually (Medhat et al., 2017). In connection oriented data transmission, the data packets firstly complete the addressing or the routing the information and packets that are routed individually. The data packets that are sent are basically sent via predefined route sequentially. The packets of data are then assembled in connection oriented transmission and are transported back to the destination network.
Circuit Switched WAN Protocol
The transmission technology of circuit switching is basically a transmission technology, in which a connection is established by the caller first and the connection is established with the callee before starting any communication. During the connection that is established in circuit-switching, all the resources are allocated in between the caller and the callee (Kizza, 2017). The resources that are established are FDM (Frequency Division Multiplexing) or time slots allocated in TDM (Time Division Multiplexing). The resources that are allocated for connection is generally called as circuit. The path that is involved in the sequence for establishing the links are located in between the nodes and the switches. The path that is taken by the data in between the destination and the source are basically determined by circuit that is flowing and the path is never changed between the lifetime till the connection is established. The circuit gets terminated when the connection in between the switches and nodes is closed.
Two data transmission technologies associated with Circuit Switched Protocol:
Basically two types of transmission is allowed in circuit switched protocol. Datagram transmission and data stream transmission (Chen et al., 2016). Datagram transmission are circuits that are addressed in frames while data stream transmissions has stream of data, in which the address are checked only for one time.
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