Case Study in Truly
Converged Network
Rajiv Goel
Agenda
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Philippine Telecommunications Overview
Business and Infrastructure Drivers
How the Service Provider Evolved Its Network?
Migration Strategies: Road to Truly Converged Networks
Putting it all together
Case Study in True Network Convergence
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Philippine telecommunications
key statistics
Note: Data taken from BMI: Philippines Telecommunications Report Q2 2005
ƒ Liberalized telecom sector, multiple operators in an oligopoly market.
ƒ Topographical difficulties hinder wireline network deployment across the country.
ƒ Low GDP per capita ($1,020) have limited the growth of PSTN and broadband
services.
ƒ In the Asian region, the Philippines rank 13th in Fixed Line, 9th in Mobile, and
10th in Internet penetration.
Case Study in True Network Convergence
Global Quest’s Domestic Backbone
4 Diverse, High Capacity, High Speed
National Transmission Networks
GT Fiber Optic Backbone Network (320 Gbps)
GT Palawan Microwave
GT National Transmission Network
TelicPhil Fiber Backbone
Over 4,000 Cell sites Nationwide
More than 200 Digital Data Nodes Nationwide
Case Study in True Network Convergence
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Where we were before …
Carrier’s Service
Offerings
Edge IP
Router
IP VPN
IP Network
Core IP
Router
TLS
Ethernet Services
Overlay
Network
Edge Ethernet
Switch
Ethernet Switch
Voice/Video
over Data
Soft
Switch
ATM Network
FTTP
ATM
Switch
FR/ATM
L2 VPN
DSL
Core ATM
Switch
Overlay
Network
DSLAM
SONET
Transport
Network
Private Lines
DCS
Voice Lines
Transport
ADM
Case Study
in True of
Network
Convergence
High
cost
ownership
of overlay networks
A brief history of our network evolution
ƒ Evolution Stage 1: Roll-out DWDM optical network
ƒ Targeted for customers wanting higher bandwidth, multi-protocol
support, and dedicated private connections
ƒ Implemented point-to-point Ethernet Over SDH services plus new
applications in like storage networking (Escon, Ficon, Fiber Channel)
ƒ Enabled easy provisioning and upgrade of bandwidth
ƒ Evolution Stage 2: Roll-out MSPP/Multi-service edge network
ƒ Any port any service advantage
ƒ Significantly simplifies network architecture (especially in the access)
ƒ Reduces costs to deliver services to the customer
ƒ New services in the pipeline – multi-site ethernet VPNs, international
private ethernet lines
Case Study in True Network Convergence
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Where we are going …
Service
Offerings
Edge IP
Router
TLS/VPLS
Ethernet Services
Single Converged Data Network
IP VPN
8800 MSR
Edge Ethernet
Switch
Voice/Video
over Data
Soft
Switch
ATM
Traffic
FTTP
FR/ATM
L2 VPN
IP/MPLS
Core Backbone
Ethernet
Traffic
Use IP/MPLS core for more
costeffective “shared” services
ATM
Switch
Use SDH/DWDM core for premium
dedicated “private” services
DSL
DSLAM
Private Lines
DCS
Voice Lines
Transport
ADM
SONET/WDM
Transport
Network
Lower cost per bit with a single network
Case Study in True Network Convergence
Seamless Migration to a Converged Network
Service
Offerings
IP Edge
Router
TLS/VPLS
Ethernet Services
Multiservice
Aggregation
IP VPN
Edge Ethernet
Switch
Voice/Video
over Data
Soft
Switch
FTTP
FR/ATM
L2 VPN
DSL
IP/MPLS
Core Backbone
ATM/FR
Traffic
Ethernet
Traffic
Tellabs
88x0 MSR
ATM
Switch
Network Simplicity
and Savings
DSLAM
Private Lines
DCS
Voice Lines
Broadest Support For
Advanced Services
Case Study in True Network Convergence
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Services Offered
ƒ TDM (64kbps to 2Mbps)
ƒ Ethernet
ƒ Access is via MSAE (Tellabs
8160)
ƒ FR (64kbps to 2M)
ƒ Access is via MSAE (Tellabs
8160)
ƒ ATM (DS3, STM-1)
ƒ Access is via BAX or Tellabs
6310/6320
ƒ IP Services
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IP-VPN for corporate
IP-VPN for infrastructure
Internet Access
Access via all technologies
ƒ Point to point
ƒ Multipoint
ƒ Access via
ƒ MSAE (up to 2Mbps via
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Ethernet/FR bridged mode)
ATM DSLAM
IP DSLAM (future)
Optical Ethernet 10/100BT,
GE, 10GE
EoSDH via BAX
Case Study in True Network Convergence
Core Network and Access Network
Diagram
Case Study in True Network Convergence
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What is converged network?
ƒ Any Service
ƒ FR, ATM (E1, DS3), IP-VPN, L2-VPN, Internet Access
ƒ Consolidated network
ƒ Consolidate too many small or separate networks
ƒ Infrastructure to allow new services whenever needed
ƒ Meet the bandwidth, inter-operability, scalability, security, QoS and
management needs of customer
ƒ Any customer location can talk to any other customer location,
regardless of difference in connectivity (ATM, Frame, Ethernet,
TDM)
ƒ Offer deterministic Quality of Service (QoS) controls to facilitate
mission critical customer applications
ƒ Optimize core transport for both existing and emerging services
over a single MPLS network
Case Study in True Network Convergence
Legacy and Emerging Services: ATM
+ MPLS
Voice
Voice
Site A
ATM
IP Services
IP Services
ATM
ATM
FR
FR
Voice
Voice
IP Services
IP Services
ATM
ATM
FR
Existing Services
FR
8860
8860
Voice
Voice
MPLS
IP/Ethernet Services
Site E
ATM
FR
8860
8860
Newly Provisioned Services
IP/Ethernet Services
ATM
FR
z
Gradually move services from ATM network to IP/MPLS network
ATM switches gradually moved to Access or completely phased out
z Existing revenue generating services are not interrupted
z Can add Ethernet and RFC 2547 to their portfolio of service offerings
z
Case Study in True Network Convergence
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Service Migration 1: Point-to-Point
VPN
ATM
Ingress
IWF
Egress
IWF
MPLS
Ethernet
Ethernet
Frame
Frame
Leased Line
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ATM
Leased Line
Routed Mode Service Interworking between FR Ethernet or ATM Ethernet allows the customers to
ƒ Chose which sites stay on lower speed FR, which migrates to Ethernet
ƒ Communications between FR sites and Ethernet sites are ensured @ L2 as opposed to L3.
ƒ Customer retains control of routing protocols as in FR/ATM VPN. Customers do not need to
relinquish control of routing as in Layer 3 IP-VPN
ƒ It allows customers to migrate at their own pace to Ethernet
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Routed Mode Service Interworking between FR Ethernet or ATM Ethernet allows the Service Provider to
ƒ Selectively offer Ethernet services only @ sites where High Speed Ethernet access is available
ƒ Provide a service migration approach
Case Study in True Network Convergence
Service Migration 2: Multipoint-VPN
Ethernet
VPLS PE
VPLS PE
Frame Relay
IP/MPLS
ATM
VLAN
Leased Line
ƒ Access to VPLS service needs to be as flexible as possible.
ƒ It allows customers to
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Have a mix and match of high and low speed access to a VPLS service
Small sites can use FR, Leased Line, DSL to access VPLS
Bigger sites can use high speed Ethernet to access VPLS
Customers control when each individual site needs to move to high speed
Ethernet
Case Study in True Network Convergence
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Case Study in True Network Convergence
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