Transport of Next-Generation Data Services over SDH

3 Day Course
Code PWL085

Book Now - 2 Delivery Methods Available:

Classroom Virtual Classroom Private Group - Virtual Self-Paced Online


Next generation networks will be deployed with high speed, high quality broadband DSL access capable of using flexible coding techniques. Multi-Service Access Nodes will carry services to Intelligent Nodes closer to the core where services will be located and then on to the network core using MPLS. The access is likely eventually to evolve into an all Ethernet service and the range of services carriers must deliver will need to be carried over existing SDH services.  This course aims to provide an understanding of how these new services can be carried over SDH and how SDH is being enhanced to provide new capabilities to deliver the services in a flexible efficient manner.


When you have completed this course you will be able to:

  • Describe how access services are evolving
  • Compare existing SDH transports with new evolving Next Generation SDH
  • MAP Access services to SDH with GFP
  • Employ Virtual Containers in the Transport
  • Utilize for efficient service deployment
  • Enhance switching technologies to interface to GMPLS core services
  • Deploy mechanisms to deliver End to End QoS for applications.


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Next generation Architecture (16 topics)

  • Why do we need Next Generation Networks?
  • Next Generation Service Demands
  • Access Speed Growth
  • Digital Subscriber Loop Services
  • Distance Speed Tradeoff
  • Multi Service Access
  • Metro Node Services
  • Core Services
  • Service Profiles
  • Management Control
  • Next Generation Access Services
  • User Service Interfaces
  • DSL Options
  • ADSL, ADSL-2+ and VDSL
  • DSL protocol Stacks
  • Ethernet Access Services

SDH Structure and Architecture (18 topics)

  • Evolution of Synchronous Optical Network (SONET)
  • STS, OC and STM Hierarchy
  • SDH Frames and Architectures
  • Header Overhead
  • Payload Envelopes
  • Virtual Containers
  • Multiplexing Structure
  • TUGs and VCs
  • Example carriage of E1 over VC12
  • Pointer Regeneration
  • Clock Transparency
  • Monitoring and Performance
  • Next Generation Service Mapping
  • Contiguous Concatenation
  • Virtual Concatenation
  • Bandwidth management
  • Virtual Container Transport
  • Mapping in Frames

Mapping Access Services to SDH Using Generic Framing Procedure (GFP) (15 topics)

  • G.7041/Y.1303
  • Purpose of GFP
  • Frame Mapped GFP (GFP-F)
  • Transparent GFP (GFP-T)
  • Relationship between Client and Transport Signals
  • Framing for User Frames
  • Payload Header
  • Type Field
  • GFP Control Frames
  • Frame Delineation
  • Example PPP Encapsulation
  • Error Handling
  • Transport Mapping for Low Latency Signals
  • Gigabit Ethernet Payloads
  • Other Payload Types

Virtual Concatenation (VCAS) for Using Bandwidth Efficiently (7 topics)

  • Virtual Concatenation (VCAT) G.707
  • VC Types
  • Contiguous Concatenation Types
  • Contiguous and Virtual Concatenation efficiency
  • virtual concatenation using VC-3-6v
  • H4 and K4 codification of Multiframes
  • H4 codification for VCAT Multiframes

Link Capacity Adjustment Scheme G.7042 (11 topics)

  • Purpose of LCAS
  • Bandwidth Allocation
  • Diversification Strategies
  • Asymmetric Configurations
  • LCAS Protocol
  • H4 and K4 byte contents
  • LCAS States
  • Example LCAS exchange
  • Using LCAS for connecting GbE between Sites
  • Sink and Source Messages
  • Interaction between VCAT and LCAS

Generalized Multi-Protocol Label Switching (GMPLS) (24 topics)

  • RFC 3471 and 4328
  • G.709
  • Functions of MPLS
  • Label Distribution Protocol
  • Forward Equivalence Classes
  • Generalized Label Request
  • Generalized PID (G-PID)
  • Bandwidth Encoding
  • Generalized Label
  • Label Set Information
  • Label Contention Resolution
  • Explicit Label Control
  • Fault Handling
  • Signalling extensions for G.709
  • Traffic Parameters
  • Label Distribution Rules
  • Optical Channel Label Space
  • RSVP-TE Signaling Protocol Extensions
  • CR-LDP Extensions RFC 3472
  • Format of Generalized Label
  • Label Set for CR-LDP
  • Interface Ids
  • Routing Extensions in support of GMPLS RFC 4202

End to End Quality of Service (17 topics)

  • Comparision between QoS approaches as Layers 2 and 3
  • Using DiffServ for End to End QoS
  • IP TOS Byte
  • IntServ, Its Strengths and Shortcomings
  • The Differentiated Services Architecture
  • Packet Marking
  • Per Hop Behaviors
  • The Default PHB (Defined in RFC-2474)
  • Class-Selector PHBs
  • Expedited Forwarding PHB (Defined in RFC-2598)
  • Assured Forwarding PHB (Defined in RFC-2597)
  • Delivering E2E QoS over Next Generation Networks
  • Mapping traffic at the access
  • Hierarchical QOS Management
  • Ingress and Egress Considerations
  • Maintaining QoS in the event of failure in the core
  • Fast Reroute

Services over Ethernet Optical Networks (12 topics)

  • Carrier Ethernet
  • Triple Play over Metro Ethernet
  • Ethernet Private Line
  • Carrier Level Specifications
  • Architecture framework
  • Ethernet Layer Specifications
  • Service Definition
  • Service Attributes
  • UNI
  • Transport Multiplex Function
  • Circuit Emulation Service over Ethernet (CESoE)
  • Ethernet Virtual Circuits

Next Generation Application Services (7 topics)

  • Revenue Sectors
  • Home Entertainment
  • Internet Broadcasting
  • Security, Control and Telemetry
  • Streaming Services
  • Local TV
  • Domestic Internet Conferencing


It will be assumed that attendees will already have a knowledge of Next Generation Networks such as that obtained from courses in Multi Service Access.

Additional Learning

The courses below may help you meet the knowledge level required to take this course.

Scheduled Dates

Please select from the dates below to make an enquiry or booking.


Different pricing structures are available including special offers. These include early bird, late availability, multi-place, corporate volume and self-funding rates. Please arrange a discussion with a training advisor to discover your most cost effective option.

Code Location Duration Price Sep Oct Nov Dec Jan Feb
Virtual Classroom (London)
3 Days $2,860
Virtual Classroom (London)
3 Days $2,860

What Our Customers Say

The training was delivered with a high level of expertise and excellence. Instructor was highly knowledgeable.”

Technical Trainer, Aviat Networks

Overall the course was really good, the trainer really understood the material and was very approachable.”

Customer Training Manager, Aviat Networks

Excellent course, informative and well-paced.”

CSE, Cisco

Course was very well outlined. Topics were great and bridged many gaps.”

System Engineer, Cable & Wireless

An excellent intro to video encoding & MPEG transport streams - I would definitely recommend it.”

Broadcast Engineer, Cisco

Definitely an excellent intro. Left me interested in learning more.”

Broadcast Engineer, Eircom

Excellent training course with real examples and practical classroom demonstrations.”

Transport Designer, Orange

Instructor knowledge and experience was excellent.”

Solutions Engineer, Akamai

Excellent course, very clear and well organised. Course content delivery was very good.”

Assistant Engineer, Dhiraagu

Very informative and appropriate.”

Network Support Technician, BT

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