We all know Internet Networks these days almost using the Internet protocols IP 4 or IP v6 versions in the networking stacks. Now we are discussing all about how a basic communication app development happens using the different OSI layers combination.
Technically going into brief about the communication apps development between one network sources app to another network sources app on basis of the OSI model (Open Systems Interconnection) established by the International Organization of Standardization (ISO) where set of protocols are combined to architecture one to one by dividing open system into different layers as shown in following picture.
Starting from Physical Layer: A bit base stuffed through data (i.e., characters, symbols – bits or images, and videos – pixelated) is in bits represented across a physical layer medium in networking apps development with standards includes IEEE 802.3 (Ethernet), IEEE 802.11 (Wireless Ethernet) regardless of networking mediums.
The second most important Data Link Layer: is always responsible for linking formation of data packet delivery as an input to network layer. In social communication apps development similar to WhatsApp data link layer plays a significant role for information (data packets) identification on favoring performances of the messaging apps development by operations like sequencing messages with error check, media access management, getting and throwing acknowledgements through frames traffic control over the header popping and pushing addresses. Few protocols used alike High-Level Data Link Control (HDLC), Asynchronous Transfer Mode (ATM), Point to Point Protocol (PPP) and Frame Relay.
The Network Layer: not only brands the stream of traffic routing judgments but also offers traffic control on packets routing by performing operations like logical addressing using Internet Protocol (IP addresses) and Fragmentation of packets. Network layer is supreme common network for IP addressing in Internet using devices. In Networking app development also uses similar protocols like Internet Group Message Protocol (IGMP) and Internet Control Message Protocol (ICMP).
Transport layer: serves to the network layer by tanking responsibilities of messages segmentation and acknowledgement delivery to help in traffic control using sessions multiplexing. The Transport layer mainly helps in chat apps development to perform the error detection and corrections over message reorganization to ensure message sequence (and also sends the request for missing messages) as a reliable message channel. In mobile apps development using transport layer comprises with protocols like User Datagram Protocol (UDP) and Transport Control Protocol (TCP).
Session is the best supporting security supplier on establishing and terminating the interactive messages (information) interchange in any session based apps development usually take care by the session layer using common protocols like NetBIOS and Named Pipes.
Yup! The key of machine level languages apps development is – ASCII, – EBCDIC, – Unicode, is character code basically translations done using presentation layer with services like data conversion, encryption and compression. All these through Transport Layer Security (TLS), Secure Sockets Layer (SSL) and Multipurpose Internet Mail Extensions (MIME).
Different hangout kind chat apps development functionalities are hang on the application layer which allows the application for resource sharing remotely for file access, printer access in the network level management, and application layer is important layer for email integrated apps development (electronic messaging). The application layer protocols familiarly for common Internet apps development includes the Hypertext Transfer Protocol (HTTP), File Transfer Protocol (FTP), Simple Mail Transfer Protocol (SMTP) and Domain Name Service (DNS).
“The Open Systems Interconnection (OSI) developed by International Telegraph and Telephone Consultative Committee (CCITT) and Transport Control Protocol/Internet Protocol (TCP/IP) ware developed by US Defense Advanced Research Projects Agency (DARPA) at parallel times in past but still used when describing modern day protocols”
Now we are approaching the Best TCP/IP Light Weight Protocol – MQTT over Eclipse Mosquitto:
What is MQTT?
The word MQTT – Abbreviates as Message Queuing Telemetry Transport (MQTT) officially called ‘MQ Telemetry Transport’. The MQTT is a light weight message protocol used for queuing of message resources constrained of network users.
Progression of MQ Telemetry Transport:
MQ – offers the message queuing i.e. lining up of data packets from one source to another source over the missionary equipment’s at network level packet transmission.
Telemetry’ is the high end auto measurement & wireless transmission of data from remote sources.
Suppose like Sensors at different sources with measure of electrical data (current, voltage), physical data (pressure, temperature) and all these are measured along with timing data info under a multiplexer procedures according to user specifications
And the word Transport’ we are well known of packets transmission ( delivering messages – receiver to sender via network) works by using Transmission Control Protocol (TCP) over the network layer with the help of Internet protocols in IOT of applications.
Yeah its sound’s a bit new Telemetry
Telemetry is the automatic measurement and wireless transmission of data from remote sources. In general, telemetry works in the following way: (such as voltage or current) or (such as temperature or pressure). These measurements are converted to specific electrical voltages.
The voltages, into a single data stream for transmission to a remote receiver. Upon reception, the data stream is separated into its original components and the data is displayed and.
“MQTT is a connective protocol complete machine-to-machine (M2M) protocol / i.e., Internet of Things protocol” – with auto message updates!
What MQTT Offers in apps development?
MQTT Real Environments: MQTT apps works to auto measure and deliver the messages (alerts) in a way initiate or obtain (Send/Receive) on different scenarios depends on the mobile application using MQTT clients.
MQTT offers device applications development given by the Quality of Service (QoS) with a promise between sender and receiver message concerning the guarantee of delivering a message over three different agreements.
- At most once:
By agreeing this clients messages are delivered rendering to the best efforts of the basic Internet Protocol network. i.e., Message loss might occur. The quality of service is with interactive ambient sensor data.
- At least once
By agreeing this clients messages are assured to arrive but duplicates might occur.
- Exactly once
By agreeing this clients messages are guaranteed to arrive precisely once.
Application development approaches in MQTT:
MQTT machine apps setup follows a few tactics in communication providence over the network on both cloud and direct communications applications. i.e.
- MQTT Connect: Client need to wait and connect server for a connection establishment to serve messages.
- MQTT Disconnect: Client wait for until they done (finish) communication or any other work. So far the MQTT TCP/IP session is disconnected.
- MQTT Subscribe: Client need request server to let the client subscribe to the list or one topics (scenario for an instance weather reporting messages).
- MQTT Unsubscribe:Client need to request the server to let remove from subscribed list or group (to unsubscribe) in different scenarios.
- MQTT Publish: Client returns immediately to application thread after passing request to the MQTT client.
MQTT Server Mosquitto Request Response – IOT mobile Apps:
In MQTT IOT mobile apps development the request and response server plays ultra-important role over the communication and synchronization of data publish to send subscriber list or to receive from different machine sensor networks.
The MQTT mobile app developers majorly think twice on the architecture development given by the professional network apps development administrators planning of MQTT architecture.
As shown MQTT mobile apps development architecture has a combination of two different areas synchronization for IOT apps development using Eclipse Mosquitto.
Middle ware Management: is like a three tire management service in-between the device level network level and data base level to make Internet of things connected for processing information.
Sensor Devices Management: must be accurate in gathering required information and placed while dealing on setup of devices as the initial setup using embedded systems metrics and instrumental sciences.
API’s Management: Takes from the major obligation with Internet of things API development for mobile and machines applications connection usually took more. Developers must need to maintain and managed accurately over the network communications.
Enterprise Applications Management: derived the big set of apps data as enterprise solution to manage and interconnect devices and remote apps over the server, through the network and data base offered by machines device and the apps vice-versa.
Wireless Sensors Management: Sensory network is something like a networking always working to gather information and pass it to a data base. Which is major data input collector.
Network Systems Management: Is major part to create data transformations using big server’s network for combining a smaller to larger applications and machine system.
“A device strategy to send (publish) info about any assumed topic (scenarios) to a server that jobs as an MQTT message broker. Then the broker pushes (sends) the info out to the clients that have earlier subscribed to the client’s theme. All though following operation taking place in application development.”
- MQTT broker
- MQTT Broker Push
- MQTT Broker Publish
Messaging Services: Messaging services uses a transport layer well for transmission of data from server to user and machines devices to server using push and pop operations.
Server Push: To send information (data) to server for storing.
Server pop: To send information (data) to users (IOT apps applications)
Get connected with us for more information – IOT, Enterprise chat applications similar to Google Hangouts, mailing system using high end, open source servers and protocols’ from experienced developers for you.