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DSL Services : Deployment and Economics. The EgyNet Experience. Ahmad Khaled Sallam [email protected] Network Planning Manager EgyNet. Agenda. EgyNet background. DSL-Network Design ATM core DSL Setup DSL-Network Cost Structure DSL Value Added Services FR over DSL Voice over DSL

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dsl services deployment and economics

DSL Services: Deployment and Economics

The EgyNet Experience

Ahmad Khaled Sallam

[email protected]

Network Planning Manager

EgyNet

agenda
Agenda
  • EgyNet background.
  • DSL-Network Design
    • ATM core
    • DSL Setup
  • DSL-Network Cost Structure
  • DSL Value Added Services
    • FR over DSL
    • Voice over DSL
      • Issues with the unbundling
      • IAD’s
  • Targeted Markets.
  • Provisioning Processes.
egynet
EgyNet
  • Data Operator and Class A ISP, operational since March 2000.
  • The first PDN in Egypt under private sector management.
  • Started with 44 PoPs now 155 PoPs.
  • 18,000 installed DSL-port.
  • 3,500+ installed connections (FR, SDSL & ADSL)
  • 12,000 dialup ports.
  • Prime provider of connectivity and DSL services in Egypt.
  • Major customers include:
    • Corporate: National Bank of Egypt, Cairo Bank, Sales Tax Authority & Social Insurance.
    • ISP’s: Internet Egypt, Misr Net, LinkDotNet & Soficom.
atm core
ATM core
  • 25 Lucent CBX-500 Switches
  • Redundant Power Supplies, Processors, redundant cards
  • E3 Trunks.
  • Alternative routes.
dsl network setup

Copper

Line

Internet

Gateway

Local

Directors

Aggregation

and/or BRAS

45 Large DSLAMs

+ 100 small DSLAMs

Cache

Server(s)

DSL Network Setup

25 Core

ATM Switches

Internet

conceptual

VPN

Residential

DSL

Business

DSL

Business

DSL

VPN

VPN

Conceptual

Residential

Volumes

ATM & DSL

Infrastructure

Connectivity

Internet

VPN

Business

dsl cost structure
DSL Cost Structure
  • Excluded
  • CPE
  • :ocal loop
adsl users behavior
ADSL users behavior
  • ADSL users tend to use their connection almost 24 x 7
splitters cost and ownership
Splitters cost and ownership
  • The PTT is reluctant and/or slow to install splitter chassis.
  • If DSL operator pays for splitter chassis, the the PTT looses control of the copper consequently the tel line.
  • Various DSL operators will have various splitter frames.
  • large hidden cost associated with installing the splitter chassis (cabling, space, support)

ATM Network

DSLAM

ADSL modem

Copper

Line

Home

Filter

Splitter

Chassis

Voice Switch

Voice PSTN

a different approach
A Different Approach
  • IAD’s are CPE’s with Ethernet and POTS interfaces.
  • Computers connect to Ethernet and tel. Handsets connect to POTS interface
  • Voice and data are carried over ATM.
  • Data is carried to its destination over the ATM network
  • Voice is carried over ATM to a Voice gateway that connect to the voice switch over a V5.2 interface.
  • No extra cabling, no splitters

Voice PSTN

ATM Network

IAD

V5.2

Ethernet

Copper

Line

POTS

Voice G/W

Voice

Switch

DSLAM

fr over dsl
FR over DSL
  • FR-ATM Conversion performed inside CPE not CO switch.
  • ATM VPI/VCI’s are converted to FR DLCI’s.
  • Better cost / FR port.
  • Allows for high density/density of FR deployment per CO.

25 Core

ATM Switches

V35

V35

Copper

Line

CPE

FR5-FR8

CPE

FR5-FR8

Router

Router

DSLAM

DSLAM

FR

FR

ATM

etherconnect service

Copper

Local loop

Copper

Local loop

Stinger

DSLAM

Stinger

DSLAM

LAN

LAN

EtherConnect Service

EgyNet

ATM/FR

  • L2 connectivity service with no IP component
  • Meant to augment FR not to cannibalize it.
  • DSL-router CPE with 4 Ethernet ports.
  • Ideal for basic IP connectivity for ATM machines or small branches

25 Core

ATM Switches

conceptual1

CONTENT

VPN

Residential

DSL

Residential

DSL

Business

DSL

VPN

Business

DSL

Business

DSL

VPN

VPN

Conceptual
  • Best value when large volumes are associated with good margins.
  • Residential services has to grow away from Internet (Int’l BW)
  • The buzz word is CONTENT.
  • Content includes:
    • Gaming
    • Video, Audio conferencing
    • Voice over DSL.
    • Media streaming.
    • Local portals

Residential

Volumes

ATM & DSL

Infrastructure

Internet

Margins

Connectivity

VPN

Business

thank you

Thank you

Ahmad Khaled Sallam

[email protected]

Network Planning Manager

EgyNet

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