broadband technologies 4 airtel
DESCRIPTION
Broadband Technologies 4 AirtelTRANSCRIPT
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BROADBAND TECHNOLOGIES & SERVICES
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Broadband Technologies -Core Network
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BROADBAND
Broadband Signifies :
High Bandwidth• High Access speeds, 256 Kbps t o 100 Mbps• Huge Core bandwidth pipes, STM –16 (SDH), GigE (MEN) and 2.5 GigE (DWDM / CWDM) Multiple Converged Services • High Speed Data• Voice• Video
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BROADBAND SERVICES
Services Offered On Broadband :• Data Services
• High Speed Internet Services • Point to Point and Point to Multi Point VPN Services• Web Hosting Applications• Walled garden (Internet on TV)
•Voices Services• Audio Conference• Voice over IP (VoIP)
•Video Services• Video Broadcast• Video on Demand• Video telephony• Online Gaming
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BROADBAND SERVICES
Basic Telecom Service Voice
Internet
Value-added Applications
Time
Web Hosting
Multimedia Conference
Video/Audio-On-Demand
OnlineGamingVideo on PC
Revenue
Value Add applications to boost revenues
Services Offered on Broadband
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BROADBAND COMPONENTS
video communication
gaming video
IP VPNBusiness
Residential
Voice over IP
CoreNetwork
Access&
AggregationNetwork
NMS Server
Radius ServerNMS Client
Video Server
User BackendCoreAccess
Soft Switch
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BROADBAND NETWORK ELEMENTS
The Access
The Core
• Wired Access ( DSL, Cable, FTTH)• Wireless ( BWA, Wifi )
• The Media•Optical Fiber
• The Technology• SDH• CWDM / DWDM• ATM • Ethernet
Backend• Authentication Server• Content Servers• Web Hosting Servers• Video Servers
Network Elements – Technology Options
• Corporate / SME / SOHO
• Residential User
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BROADBAND NETWORK COMPONENTS
Dual Homed Ring
2 Fiber SM G.652
DSLAM
Internet
MPLS
BBRAS
Internet Gateway Router
GigE
GigE
GigE
Backend
•DNS•DHCP•AAA
Core Network Access
•Voice Services Server•Internet Data Services Server•TV/Video Services Servers
FTTH 100M
M/CSTB
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CORE NETWORK TECHNOLOGIES
BB Core Technologies:
Core Network: Architecture
• Ring• Single Homing• Dual Homing
• Mesh
Technology•ATM / IP / Ethernet• SDH• SDH over CWDM / DWDM
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RING ARCHITECTURE
Aggregation Ring
2 Fiber SM G.652
Core Switch
Collector Ring
Advantage•Low Cost•Simple ArchitectureDisadvantage•Hub – Potential Single Point failureTarget Application•Towards Access and Low Capacity Core
Advantage•Highly Reliable•Disadvantage•High Cost Solution.Target Application•High Capacity Core
Single Homed Dual Homed
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MESH ARCHITECTURE
Core Ring
Dual-Homed Mesh Advantages• Extremely Reliable• Protection against Equipment / Fiber failure
Disadvantages• Very Complex and Costly to implement
Target Application• Highest Tier in Core
Mesh Network
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CORE TECHNOLOGIES
Technology Options on Core
1. ATM Backbone2. IP / Metro Ethernet3. SDH / CWDM / DWDM.
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ATM BACKBONE
Traditional ATM Backbone Core
Benefits:1. High deployment across the world2. Stabilized Technology3. Aggregation through multiple E1’s or upto STM 16
rings.4. Good for aggregating Higher bandwidths.
Drawbacks:1. ATM pvc uses 10% overheads2. Higher Provisioning time.
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ATM BACKBONE CORE
E
D
Broadband RAS
A
STM4/STM16
DSLAM for Residential Internet Access– Traditional Way
xDSL
xDSL
B
ATM MESH
RFC 1483Bridged Access
RFC 1483Bridged Access
Internet
RFC 1483Bridged Access
STM4/STM16
STM4/STM16STM4/STM16FTTH 100M
LAN Switch
Metro Ethernet
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METRO ETHERNET CORE
Metro Ethernet Core
Benefits:1. Deployment has started in Huge way across the world2. Aggregation through Fast Ethernet or Gigabit
Ethernet.3. Highly recommended for high bandwidths
requirements.
Drawbacks:1. Technology getting standardized2. Limited support for VLAN’s.3. Single broadcast domain.
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BROADBAND TECHNOLOGIES & SERVICES
Ethernet ServiceConnectivity Provider
DSLAM for Residential Internet Access– Next Generation
FE/Gig
FE/GigFE/Gig
FE/Gig
FE/Gig
xDSL
xDSLInternet
Internet Gateway Router
Broadband RAS
IPDSLAM
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SDH / CWDM / DWDM CORE
SDH NetworkSTM 1/4/16
AggregationRing (CWDM/DWDM)
2 Fiber SM G.652
DSLAM traffic going to the core through Metro Ethernet
xDSL
Metro Transport and Aggregation
Network
Inter-City Backbone Network
Ethernet UNI
Ethernet UNI
Internet
MPLS
BBRAS
Internet Access Router
Internet Gateway Router
GigE
GigE
GigE
Backbone
SDH
STM1/STM4 on Sonet
ATMSTM1/STM4on ATM
Core Switch
• Voice ServicesServer•Internet Data Services Server•TV/Video Services Servers
•DNS•DHCP•AAA
Aggregation Node
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BROADBAND SERVICES
•Multiple Technology Options for Changing Needs
•Need for multiple service offering
•Focus on Centralized Management and Provisioning
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