• Skip to main content
  • Skip to primary sidebar
  • Skip to secondary sidebar
  • Skip to footer

Computer Notes

Library
    • Computer Fundamental
    • Computer Memory
    • DBMS Tutorial
    • Operating System
    • Computer Networking
    • C Programming
    • C++ Programming
    • Java Programming
    • C# Programming
    • SQL Tutorial
    • Management Tutorial
    • Computer Graphics
    • Compiler Design
    • Style Sheet
    • JavaScript Tutorial
    • Html Tutorial
    • Wordpress Tutorial
    • Python Tutorial
    • PHP Tutorial
    • JSP Tutorial
    • AngularJS Tutorial
    • Data Structures
    • E Commerce Tutorial
    • Visual Basic
    • Structs2 Tutorial
    • Digital Electronics
    • Internet Terms
    • Servlet Tutorial
    • Software Engineering
    • Interviews Questions
    • Basic Terms
    • Troubleshooting
Menu

Header Right

Home » Networking » Access » What is OTN (Optical Transport Network) ?
Next →
← Prev

What is OTN (Optical Transport Network) ?

By Dinesh Thakur

SONET/SDH standard was carry telephone speech, and it took many adaptations for the transport of frames and type of IP packets, ATM, or others. The successor of SONET/SDH has been launched in early 2002 and standardized by ITU-T as the OTN (Optical Transport Network). Its role is to channel packages on routes to 2,5, 10 and 40 Gbit/s. The corresponding recommendation G.709 carries the number.

Figure shows the new format of the synchronous OTN frame.

The OTN frame format

All types of frames are to be transported transparently in the OTM frame, without them having to be modified. A field is expected to add an FEC (Forward Error Correction) to perform the necessary corrections to achieve an error rate determined.

OTN interface consists of several levels. Starting from the optical fiber with the following layers are:

• OTS (Optical Transmission Section), which supports signal transmission optical checking its integrity.

• OMS (Optical Multiplex Section), which supports features for to provide a wavelength-division multiplexing.

• OCH (Optical Channel), which is the level of one end of the optical signal. This level allows modification of the connection and rerouting, and maintenance functions the connection.

• DW (Digital Wrapper), which corresponds to the digital envelope.

The level Digital Wrapper itself is broken down into three levels:

• OTUk (Optical Transport Unit), which gives the possibility of adopting a correction using FEC.

• ODUk (Optical Data Unit), which manages connectivity regardless of clients and offers protection and management of this connectivity.

• OPUk (Optical Payload Unit), which indicates a match between the signal and the type of client.

The overall architecture of OTN is shown in Figure.

Layered structure of the OTN architecture

Figure shows the different transport entities on the interface OTH (Optical Transport hierarchy) and Figure of the frame structure and the flow rates of OTN interface.

Frame structure and rates of OTN interface

You’ll also like:

  1. Passive Optical Network
  2. Ethernet Passive Optical Network (EPON)
  3. Optical Fiber – Optical Transmission Modes Advantages and Disadvantages of Optical Fiber
  4. What is RTP (Real-time Transport Protocol)?
  5. What is a Communication Network? Network Effectiveness Criteria
Next →
← Prev
Like/Subscribe us for latest updates     

About Dinesh Thakur
Dinesh ThakurDinesh Thakur holds an B.C.A, MCDBA, MCSD certifications. Dinesh authors the hugely popular Computer Notes blog. Where he writes how-to guides around Computer fundamental , computer software, Computer programming, and web apps.

Dinesh Thakur is a Freelance Writer who helps different clients from all over the globe. Dinesh has written over 500+ blogs, 30+ eBooks, and 10000+ Posts for all types of clients.


For any type of query or something that you think is missing, please feel free to Contact us.


Primary Sidebar

Networking

Networking Tutorials

  • Network - Home
  • Network - Uses
  • Network - Advantages
  • Network - Classification
  • Network - Architecture Type
  • Nework - Networks Vs Comms

Networking Devices

  • Network - Modem
  • Network - Routers Types
  • Network - Bluetooth
  • Network - RS-232C
  • Network - Hub
  • Network - Devices
  • Network - Bridges
  • Network - Repeaters
  • Network - Routers
  • Network - Switching Hubs
  • Network - Transceiver
  • Network - Multiplexer
  • Network - Gateway
  • Network - BNC Connector
  • Network - Optical Connectors
  • Network - NICs
  • Networking Protocol

  • Protocol - Definition
  • Protocol - IP
  • Protocol - Aloha
  • Protocol - MAC Layer
  • Protocol - Sliding Window
  • Protocol - Stop & Wait
  • Protocol - Network Protocols
  • Protocol - Token Passing
  • Protocol - SIP
  • Protocol - Ad-Hoc Networks Routing
  • Protocol - Lap-f
  • Protocol - Point-to-Point
  • Protocol - PPP
  • Protocol - PPP Phases
  • Protocol - LDP
  • Protocol - MPLS
  • Protocol - MPOA
  • Protocol - HDLC
  • Protocol - Distance Vector routing
  • Protocol - IGMP
  • Protocol - ICMP
  • Protocol - SLIP
  • Protocol - DVMRP
  • Protocol - SDLC
  • Protocol - Routing
  • Protocol - UDP
  • Protocol - ARP and RARP
  • Protocol - Link-State
  • Protocol - ARP Table
  • Protocol - RTP
  • Protocol - NHRP
  • Network Addressing

  • Addressing - Home
  • Addressing - SubNetting
  • Addressing - Classless
  • Addressing - Classes or Classful
  • Addressing - IPV4 vs IPV6
  • Addressing - IPv6
  • Addressing - Subnet Mask
  • Addressing - MAC Address
  • Addressing - Supernetting
  • Addressing - Private IP
  • Addressing - IPv4
  • Addressing - Public IP
  • Addressing - Multihomed
  • Addressing - Indirect Addressing
  • Addressing - ASP
  • Addressing - VLSM
  • Addressing - Routing Algorithms
  • Addressing - Hierarchical Routing
  • Addressing - Routing
  • Addressing - Distributed Routing
  • Addressing - Data Routing
  • Addressing - Services
  • Addressing - IP forwarding
  • Addressing - Aging
  • Addressing - Algorithm CR
  • Networking Media

  • Transmission - Home
  • Transmission - Modes
  • Transmission - Media
  • Transmission - System
  • Transmission - Bound
  • Transmission - Unbound
  • Transmission - Baseband
  • Transmission - Wired
  • Transmission - Fiber Benfits
  • Transmission - Infrared
  • Transmission - UnGuided
  • Transmission - Microwave
  • Transmission - Infrared
  • Transmission - Radio Wave
  • Transmission - Network
  • Transmission - Digital Signal
  • Transmission - Data
  • Transmission - Asynchronous
  • Transmission - Sync Vs Async
  • Cable - Twisted-Pair
  • Cable - Coaxial
  • Cable - UTP and STP
  • Cable - Fiber Optics
  • Cable - Gigabit Ethernet
  • Cable - Fast Ethernet
  • Cable - Ethernet Cable
  • Cable - Fiber-Optic Using
  • Cable - CATV
  • Cable - 100Base T
  • Cable - 10BASE T
  • Cable - 10 Base 2
  • Cable - 10 Base 5
  • Networking Types

  • IEEE - 802.11
  • IEEE - 802.5
  • IEEE - 802.15
  • IEEE - 802.11e
  • IEEE - 802.11n
  • Network - Ethernet
  • Network - Arpanet
  • Network - Frame Relay
  • Network - X.25
  • Network - Telephone
  • Network - WSN
  • Network - Metro Ethernet
  • Network - WAN Ethernet
  • Network - Wireless Mesh
  • Network - SAN
  • Network - SNA
  • Network - Cisco Architecture
  • Network - Vlan
  • Network - FDDI
  • Network - 100VG-Any
  • Network - EPON
  • Network - ISDN
  • Network - ARCNet
  • Network - Passive Optical
  • Networking Reference Models

  • Models - TCP/IP
  • Models - OSI
  • Models - MAC Layer
  • Models - Network Layer
  • Models - MAC Layer Functions
  • Models - TCP/IP Vs OSI
  • Models - CSMA
  • Models - CSMA/CD
  • Models - CSMA/CA
  • Models - CDMA
  • Models - STDM
  • Models - FDMA
  • Models - TDMA
  • Models - SDH
  • Models - CDM
  • Models - Multiplexing
  • Models - Reference
  • Models - Random Access Methods
  • Models - TCP/IP Architecture
  • Models - FDM
  • Models - IP Header
  • Models - OTN
  • Models - Amplitude Levels
  • Models - MIMO
  • Models - Plesiochronous Media
  • Models - Half Duplex
  • Models - ISO Architecture
  • Models - Data-Link Layer
  • Models - WDM
  • Models - Duplex
  • Models - Ethernet FDSE
  • Networking Switching Techniques

  • Switching - Home
  • Switching - Techniques
  • Switching - Packet
  • Switching - Circuit
  • Switching - Message
  • Switching - Packet Vs virtual Circuit
  • Switching - Cell
  • Switching - ATM Cell Structure
  • Switching - Virtual Circuit Vs Datagram
  • Switching - Time Space
  • Switching - Modulation
  • Switching - Cell Relay
  • Switching - ATM Structure
  • Switching - VC Vs PVC
  • Switching - Packet and Circuit
  • Switching - VPC
  • Switching - IP
  • Switching - Logical Channels
  • Switching - TDM
  • Switching - FDM
  • Network Codes

  • Codes - CRC
  • Codes - Error Correction and Detection
  • Codes - Hamming
  • Codes - Piggybacking
  • Codes - Encoding Techniques
  • Codes - Error Control
  • Codes - Parity Check
  • Codes - Parity bit
  • Codes - Bit Error
  • Codes - CRC
  • Codes - Transmission Errors
  • Codes - Error Detection and Correction
  • Network Communication

  • Communication - Home
  • Communication - Satellite
  • Communication - Wireless
  • Communication - Data Type
  • Communication - Congestion Control
  • Communication - Network
  • Communication - Data
  • Communication - Software
  • Communication - Layering Process
  • Networking Signaling

  • Signal - Analog
  • Signal - Digital
  • Signal - Analog Vs Digital
  • Signal - Digitization
  • Network Security

  • Security - Home
  • Security - Requirements
  • Security - Threats
  • Security - Services

Other Links

  • Networking - PDF Version

Footer

Basic Course

  • Computer Fundamental
  • Computer Networking
  • Operating System
  • Database System
  • Computer Graphics
  • Management System
  • Software Engineering
  • Digital Electronics
  • Electronic Commerce
  • Compiler Design
  • Troubleshooting

Programming

  • Java Programming
  • Structured Query (SQL)
  • C Programming
  • C++ Programming
  • Visual Basic
  • Data Structures
  • Struts 2
  • Java Servlet
  • C# Programming
  • Basic Terms
  • Interviews

World Wide Web

  • Internet
  • Java Script
  • HTML Language
  • Cascading Style Sheet
  • Java Server Pages
  • Wordpress
  • PHP
  • Python Tutorial
  • AngularJS
  • Troubleshooting

 About Us |  Contact Us |  FAQ

Dinesh Thakur is a Technology Columinist and founder of Computer Notes.

Copyright © 2025. All Rights Reserved.

APPLY FOR ONLINE JOB IN BIGGEST CRYPTO COMPANIES
APPLY NOW