Understanding
MultiService Access and H.248
Course Duration:
2 days
Training Course Description:
This two-day instensive course examines Multiservice access using
PPPoE/PPPoA/VLANs and H.248 (MEGACO). The next generation of
telecommunications networks will be deployed using VoIP technology
and soft switching replacing circuit switching and ISDN signalling.
By deploying communications as multimedia streams over IP it is
possible to extend the services from simple voice to improved voice
quality, better bandwidth utilization and expanded services into
video and television carried over the same technology. Already cost
effective VoIP services have been deployed using H.323 and SIP over
Intranet infrastructures. However to integrate this with existing
ISDN and SS7 architectures and eventually to replace local exchanges
and transit exchanges in carrier networks requires large scale
signalling and switching changes.
The next generation of telecommunications networks is likely to use
IP and for efficient and high-speed quality of service switching
deploy MPLS to select routes.
To build soft switches and distribute the switching function over a
carrier level infrastructure, gateways will be controlled using
H.248, called Media Gateway Control Protocol (MEGACO) by the
Internet community.
This course will provide an intensive study of these technologies.
When you have completed this course you will be able to:
- Describe how PPPoA functions
today
- Migrate access to PPPoE and VLAN
operation with Gigabit Ethernet
- Discuss the mechanisms used to
carry voice over IP
- Compare SIP, H.323 and Media
Gateway Control Protocol
- Employ MEGACO to build soft
switches
- Analyse H.248 protocol exchanges
Alternatives:
Delegates from a sales and marketing or similar non technical
background maybe interested in the following course instead
Understanding Next Generation Network Architectures
Delegates requiring an understanding of Multi-service Access and SIP
(Session Initiation Protocol) should look at Understanding
MultiService Access and SIP
Delivery Options
This course is availble on our public schedule, please review the
available dates at the bottom of this page.
As an onsite training provider, we can deliver this course to any
location in the UK, EMEA, US and Asia/Pac.
Prerequisites:
A basic knowledge of IP will be assumed. The necessary IP skills can
be gained by attending the one of the following courses.
Prerequisite courses:
- Hands On TCP/IP and Internet
Protocols
- ICND: Interconnecting Cisco
Network Devices
Follow up courses:
- IP Multicasting for Multimedia
Distribution Networks
- Transport of Next-Generation
Data Services over SDH
- Multi-Protocol Label Switching
in 21st Century Telecommunications Networks
- Gigabit Ethernet for
Telecommunications Service Networks
- H.248 Megaco for Developers and
Implementers
- SS7 over IP (SCTP)
- Understanding DOCSIS (Data Over
Cable Service Interface Specifications)
- Understanding Packet Lawful
Intercept
Understanding MultiService
Access and H.248 includes the following modules:
Introduction To Next Generation Architecture
- Current generation switching
- Next generation IP
Infrastructure
- Access with PPPoA dn PPPoE
- Switch Control protocols and
interfaces
- Switching Control: General
Switch Management
- Switching Function: MPLS and CES
- Gateway Control : MEGACO/H.248
PPPoE Fundamentals
- PPPoE/PPPoA Advantages and
disadvantages
- PPPoA operation recap
- RFC1483
- SNAP
- OUI
- Selecting bridging and routing
protocols
- VC selection by protocol
- PPPoE Architecture
- RFC2364/2516
- Aggregation and links to
service provision
- IPCP and LPC peers
- Linking to Service Providers
- L2TP and other service
provision
- Maximum receiver unit
considerations
- PPPoE Active Discovery
Initiation (PADI)
- PPPoE Active Discovery Offer (PADO)
- PPPoE Active Discovery Request
(PADR)
- Active Discovery
Session-confirmation (PADS)
- PPPoE Active Discovery
Terminate (PADT)
- PPP Session Stage
- LCP Considerations
- Security Considerations
Gigabit Ethernet and VLANs
- Evolution of Ethernet
- CSMA/CD and its replacement by
Switching
- Layer 1 presentations
- Concept of a LAN and a VLAN
- Bridging: 802.1d
- Spanning Tree Delays
- Proprietary extensions: PortFast
- VLAN Trunking
- 801.1Q
- Selection of VLAN Identifiers
Precedence and Quality of
Service
- Mechanisms for QoS
- Layer 3:
- RSVP
- DiffServ
- MPLS
- MPLS experimental Bits
- Layer 2: 802.1P
- Bits in shim header
- Delivering QoS
Carrying Multimedia Conferences
over IP
- Voice over IP Concepts
- Control Plane
- Information Plane
- Signalling functions
- IP/TCP/UDP
- RTP
- CODECs and Encoding Media
- RTCP
- Example SIP connection
- Session Description Protocol
- Architecture of a Soft Switch
Media Gateway Control Protocol (MEGACO/H.248)
- H.248 standards and versions
- Components of MEGACO
- Contexts
- Terminations: trunks, lines
and media streams
- Root Terminations
- Identities
- Notifications
- Events
- Replies
- Digit maps
- Statistics
- Commands
- Add
- Subtract
- Modify
- Service Change
- Audit
- Setting up a connection
- Constructing a context
- Adding terminations
- Signalling on/off hook
- Dialed digit detection
- Terminating a connection
- Subtracting terminations
- Removing contexts
Analyzing Traces of MEGACO Call
Flows
- Call between two residential
gateways
- Call between Residential Gateway
and Trunking Gateway
- Call between two Trunking
gateways
- Call between Residential gateway
and SS7 trunk in TGW
- Call between ISDN trunk in TGW
and SS7 trunk in TGW
- Call from residential gateway to
H.323 Terminal
- Call from residential gateway to
SIP user
- MGC registrations: accepting and
rejecting registration
- IVR Usage
- Supplementary Service
- Call Transfer
- Call Waiting
- Conferencing
View the Course Schedule |
