Description
This course will give you an understanding of the NGN network, and its components. The training will describe the NGN as standardised by ETSI TISPAN, and covers the subsystems, individual nodes as well as the protocols used.
Target group
This course is designed for engineers that knows IMS and SIP, and wishes to understand the architecture of the future telecom networks. The training suits both vendors and carrier staff.
Prerequisites
This course requires basic knowledge of SIP and IMS.
Other
This course is a well-balanced mix of lectures, presentations, discussions and mind-maps.This course is avaible as scheduled training and the presentation is given in English or Swedish. This is a theoretical course. We can also give this course as on-site training. If you are interested in customized education, don´t hesitate to contact us for furher information
Agenda
Introduction
- Trends in telecommunication
- Standards and definition of NGN
- NGN subsystems
- Voice over IP basics
- NGN components
SIP and SDP Review
- SIP Components
- Request & Responses
- SDP Negotiation
- Registration and Call Routing
IMS Review
- IMS components
- Registration
- SIP Header usage in Registration
- IMS Subscription Data
- IMS Identities
- Session Establishment
- Interworking with other networks
The Diameter protocol
- The baseline protocol
- The Cx interface
- The Stream Control Transmission Protocol (SCTP)
The Network Attachment Subsystem (NASS)
- NASS overview
- NASS components; CNGCF, NACF, UAAF, PDBF and CLF
- NASS interfaces; e1, e2, e3, e4, e5, a1, a2, a3 and a4
- Implementation options, xDSL and WLAN
- Example of information flows in NASS
- Roaming- and physical scenarios
Network Address Translation (NAT)
- Problem definition
- Access Solutions; UPnP, ALG and SBG
- Network Solutions; STUN, TURN and ICE
The Resource and Admission Control Subsystem (RACS)
- RACS overview
- RACS components; SPDF, A-RACF and N-RACF
- Interworking common components; RCEF, C-BGF and I-BGF
- RACS interfaces; Ra, Re, Rr, Rq, Ia, Ri’; Rd’ and Gq’
PSTN/ISDN Replacement
- Introduction to Media Gateways
- SIP-I
- Residential- and Access Gateways
- PSTN/ISDN Emulation Subsystem (PES)
- The Customer Network Gateway (CNG)
The H.248/megaco protocol
- H.248 basics; Terminations and Contexts
- H.248 terminology; Properties, Descriptors, Commands, Packages and Profiles
- Example of H.248 flows
- Profiles for AGW/RGW, BGF (Ia), TGW, MRFP (Mp) and IMS MG (Mn)
Supplementary Services
- Introduction to PSTN/ISDN Simulation (PSS)
- Traffic flows; OIP/R, TIP/R, MCID, ACR, CDIV, CW, HOLD, CD, CONF, AOC and ECT
Security
- Introduction; Digest Authentication and IPSec
- IMS Security Architecture
- Access security; AKA, ESP Transport Mode, Digest and NASS Bundled (NBA)
- Network security; ESP Transport mode, TLS
- Generic Bootstrapping Architecture, GBA
Quality of Service, Charging and Policy
- QoS; VLAN, Intserv, Diffserv, MPLS, and SLA
- Charging; Off-line- Online- and Flow Based Charging
- The Policy and Charging Control (PCC) architecture; PCRF and PCEF
End-to-end Traffic Flow
- An IMS Session Initiation, with QoS reservation
- Example messages from all relevant interfaces
- Disconnection of resources
IPTV in TISPAN
- High level architecture
- IPTV based on IMS
- Non-IMS based IPTV Subsystem
- IPTV and the Customer Network Device (CND)
- Open IPTV Forum Architecture
Summary
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