The application layer is an abstraction layer reserved for communications protocols and methods designed for process-to-process communications across an Internet Protocol (IP) computer network. Application layer protocols use the underlying transport layer protocols to establish host-to-host connections.
In the OSI model, the definition of its application layer is narrower in scope. The OSI model defines the application layer as being the user interface. The OSI application layer is responsible for displaying data and images to the user in a human-recognizable format and to interface with the presentation layer below it.
It separates functionality above the transport layer at two additional levels, the session layer and the presentation layer. OSI specifies strict modular separation of functionality at these layers and provides protocol implementations for each layer.
TCP/IP protocols
The following protocols are describing the application layer of the Internet protocol suite.
- Remote login category
- Telnet
- File transfer category
- FTP
- TFTP
- Electronic mail category
- SMTP
- IMAP
- POP
- Support services category
- DNS
- RARP
- BOOTP
- SNMP
- CMOT
Other protocol examples
- 9P, Plan 9 from Bell Labs distributed file system protocol
- AFP,
- APPC, Advanced Program-to-Program Communication
- AMQP, Advanced Message Queuing Protocol
- BitTorrent
- Atom Publishing Protocol
- CFDP, Coherent File Distribution Protocol
- CoAP, Constrained Application Protocol
- DDS, Data Distribution Service
- DeviceNet
- eDonkey
- ENRP, Endpoint Handlespace Redundancy Protocol
- FastTrack (KaZaa, Grokster, iMesh)
- Finger, User Information Protocol
- Freenet
- FTAM, File Transfer Access and Management
- Gopher, Gopher protocol
- HL7, Health Level Seven
- HTTP, HyperText Transfer Protocol ETC.,
Excellent and very exciting site. Love to watch. Keep Rocking.
ReplyDeletejio.local.html
Grammar, vocabulary, tenses, indirect speech, passive sentences must always be keep in mind while writing a blog. Everyone must read this blog. This is going to help everyone.Presentation
ReplyDeleteMost of the blogs pretend themselves as most usable and updated blogs with new information but sometime truth might different. I want to share some facts related to this subject which will help people to enhance their skills.
ReplyDeleteDell WinServ 2012 R2 Foundation
Nice, Thanks
ReplyDelete
ReplyDeleteIt is very useful and knowledgeable. Therefore, I would like to thank you for the efforts you have made in writing this article.
C9200-48T-E
C9300-24T-E
C9300-24t-A
C9500-NM-8X