Next Generation Network
“Complementing The Internet
For Converged Service”
Sameer Padhye
Vice President, Worldwide Service Provider Marketing
ITU-T Workshop on NGN
July 9-10, 2003
Session Number
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
1
Agenda
• PSTN & Internet trends & characteristics
• Why this conversation now ?
• NGN – all IP vision
• Emerging NGN Service Trends
Business, Consumer
• Building the NGN
Architecture, Access, Edge, Transport, Core, Provisioning,
Reliability, Security
• Transitions in SP Networks
Current, Emerging, Future
• Interworking with legacy networks
• Importance of Open Standards Interfaces
• Summary
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
2
Today’s Carrier Networks
Telecommunications
• Connection Oriented
• Centralized intelligence and
control
• HW Fault tolerance
• Deterministic
• Services integrated with
network, limited value-add
• Low Latency
• Tightly coupled
• Mature Security
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
Data Communications
• Connectionless Oriented
• Distributed intelligence and
control
• SW Fault tolerance
• Non-Deterministic
• Decouple services and
network, High Service
Flexibility
• High Latency
• Loosely coupled
• Security evolving
3
PSTN And Internet
Key Characteristics are Complementary
Strength
Weakness
Presentation_ID
PSTN
Internet
Reliability
Service Richness
Deterministic
Flexibility
Secure
Open
Service Richness
Reliability
Flexibility
Deterministic
Open
Secure
© 2001, Cisco Systems, Inc. All rights reserved.
4
Trends in New Service Deployment
Business
Consumer
Consumer
Business
Trends
•Consumers want business like services
•Ubiquitous Communication Services(Any Access/Transport)
• New Differentiated value-added services would evolve with the deployment
of broadband, high quality, secure services
• End-to-End Service Enablement will be delivered thru packet intelligence
• Customer “Self-Management” of network and Services using “WEB
Technology”
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
5
Why this conversation now..?
• Old business models being questioned due to
success of internet
• SP NGNs to adopt IP based internet models except
try to make them better
• Call control understandings for IP like SIP, MPLS
make it ready to carry voice and multimedia traffic
• SPs need to rework their business models and start
growing profitably again again
• Economies expected to become better and SP capex
expected to increase; SPs on verge of making
network infrastructure investment decisions
• Credible equipment providers now being tested on
new metrics of staying power
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
6
Characteristics of the Ideal Network
Fusing the Best Properties of Today’s Networks
onto a Common Lowest Cost Infrastructure
Mobility of the
GSM Network
Ubiquity/Reliability
of the PSTN
Security of
Financial Funds
Transfers
Perfection
Bandwidth
of an Optical
Network
Presentation_ID
Latency Control
of an ATM
Network
© 2001, Cisco Systems, Inc. All rights reserved.
Flexibility of the
Internet
Operational Ease
of Ethernet
7
The Next Generation Network - Fusing The
Best Properties of Today’s Networks
Mobility of the
GSM Network
Security of a
Private Network
Content Richness of
Cable/Television
Ubiquity/Reliability of
the PSTN
Next Generation
Network
Flexibility of the
Internet
Bandwidth
of an Optical
Network
Latency Control of
an ATM Network
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
Operational Ease
of Ethernet
8
Next Generation Network
Delivering Converged Services
Enterprise
Small Business
Consumer
Packet-based
NGN
VPNs
Transport
Voice &
Video
Presentation_ID
Content
Internet
© 2001, Cisco Systems, Inc. All rights reserved.
Mobility
9
Emerging NGN - Enabling Business
to leverage the Internet
Content
Distribution
Hosting
Storage
Cable/
DSL
PSTN
Metro Ethernet
Remote Access
Regional HQ
VM
Teleworker
Service
Provider
NGN
Managed
Internet Gateway
Managed Security
(IDS, Firewall)
Corporate
Hosted IPT
Telephony
Regional Secure
Internet Gateway
Telecommuter
Access
MPLS VPN
Managed IP
Telephony
Branch 1
Presentation_ID
Branch 2
© 2001, Cisco Systems, Inc. All rights reserved.
Branch 3
10
Emerging NGN – Transforming Consumer
Service
Bundle Services for the
connected Home
VPN
Security
VoIP
Gaming
Home
Gateway
HSD
NetPVR
Digital
Music
Video &
xVoD
End-to-End Intelligent Network
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
11
The ‘Next Generation Network’
Architectural Concept
OSS
Application
Signalling & Control
Switching & Routing
Transport
Service Rich Platform-Access agnostic
Common Packet-based Modular architecture
Multiservice/Multimedia convergence over IP
End-to-end packet intelligence
Broadband Capabilities
Open standards based platform
Interworking with legacy
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
12
Emerging NGN And The Internet
Service Convergence on IP
Residential , SoHo , Small Pros , SME , Enterprises
End Users
Content
Services and
Applications
Multimedia
VoIP
Hosting
eCommerce
eLearning
PSTN
VPN-Aware
Networks
Intranet A
Extranet
Internet
Mobile
IP-VPN’s
NGN SP
Infrastructure
Multiservice IP
(or Multiservice
ATM Transport)
ATM
Frame
Relay
Multiservice
MPLS-Enabled
IP Network
IP is ubiquitous access service platform
Delivering services independently of access and core media
to all type of end-users (Residential, Soho, SMB, Enterprise)
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
13
NGN - Packet Building Blocks
Applications and Content
Application Aware
Network Services
Integrated OSS
Standards based Signaling and Control
Full-service
Efficient
Intelligent
Multi-service
Customer
Access and
Service
Core
Element
Aggregation
Edge
Packet Intelligence
Packet-aware
Transport
SP Strategy 0603
Presentation_ID
Tej Kohli
© 2003,
2001, Cisco Systems, Inc. All rights reserved.
14
NGN Consumer Access
Multiple Broadband Access Options
Games Console
Cable
Live Content
Video on Demand
DTV Tuner
802.11b/g
Router
Eth.
DSL
Ethernet
Set-top Box
Residential
Gateway
Second Line
VoIP
Fiber
Home
Security
Home Shopping
PDA
Notebook
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
15
NGN Business Access
Emergence of Metro Ethernet
256 Kb
Service
Provider
Metro Ethernet Network
Remote Office 1
Frame Relay-Connected
Branches
Fast Ethernet
256 Kb
Regional
Headquarter
User-Network Interface
(UNI)
I/W Device
Remote Office 2
10 Mbps
Ethernet
• A new access for the NGN is Metro Ethernet
Ethernet-Connected
Branch
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
Remote Office 3
16
NGN Edge – Access Independent
Services
PC
Cable
AAA
Director
y
ADSL
Internet
Leased Line
WAP
Dial
Content Services
Gateway
PDA
GGSN/PDSN
Corporate
VPN
Notebook
Presentation_ID
802.11b
© 2001, Cisco Systems, Inc. All rights reserved.
Open Garden
17
NGN Transport - Adding PacketAwareness for Internet/data traffic
Point-to-point
Point-to-multi-point
Shared Ring
Internet,
Long haul handoff and/or
Regional Net
Enterprise B
SONET/SDH Ring
Enterprise A
SONET/SDH Ring
Enterprise A
Ethernet and IP switching and QoS
Integrated Ethernet switching and IP routing
VLAN support (802.1Q and QinQ)
Diff-serv QoS implementation
SONET/SDH Ring
Enterprise C
Enterprise C
Enterprise B
Enterprise C
Efficient Ethernet transport over SONET/SDH
LEX, PPP/BCP and Cisco HDLC encapsulation
GFP encapsulation
HO-VCAT and LO-VCAT with LCAS
Efficient Ethernet transport over DWDM
GigE transport over DWDM
10GigE transport over DWDM
7740_03_2003_c1
Presentation_ID
© 2003,
2001, Cisco Systems, Inc. All rights reserved.
18
NGN Core - Evolving Internet to
Multiservice IP Core
Converged Core
Future
Multiple Interworked Networks
Today
Frame-Relay
Frame-Relay
Ethernet
ATM
Ethernet
RPR
Metro
•
•
•
•
•
ATM
DSL
MPLS
MPLS TDM
Internet
RPR
WAN
Connection oriented
End-to-end provisioning
Scalability issues
Capex intensive
Not Opex efficient
Presentation_ID
CAPEX/OPEX
Consolidated
Multiservice
NGN Core
© 2001, Cisco Systems, Inc. All rights reserved.
•
•
•
•
•
•
IP/Packet-based
Multiservice
IP/MPLS aware end-to-end
Simplified provisioning
Highly scalabIe
Capex and OPEX efficient
19
Building The NGN Core
Enhance Switching /
Routing performance
and system availability
PSTN Core
Network
L2 Architecture
- Evolve core to support
L2 trunking over IP/ MPLS
- use L2 provider
provisioned VPN
V
MPLS
Ethernet
IP
IP/MPLS
NGN
Core
IP / MPLS
ATM
Frame Relay
MPLS
Evolve SP Edge to
support L3+
IP / MPLS and L2
services
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
ATM Core
Network
L3 Architecture
- IP as the service
convergence layer
- Distributed IP architecture
- Transport voice over IP
20
NGN SSG Mobility– Bringing Control
& Dynamic Policy Capabilities
Billing
• Flat-Rate
• Post-paid
• Pre-paid
• By Service
• By Application
Broadband
Access
Methods
SSG Services
• VPN
• SLA
• Voice
• Video
• Games
• etc
PPPoA
PPPoE
Wireless LAN
Mobile Wireless
SSG
Internet
Identity
Presentation_ID
• Key to
ownership
• Application to
Network
• Authentication
• Single Sign On
• Device Identity
© 2001, Cisco Systems, Inc. All rights reserved.
User Control
• Login
• Self provisioning
• Content
• Bandwidth
• QoS
21
NGN – Building an Internet OSS
Web-based Management & provisioning
Customer Portal
Assurance
Fulfillment
Order
Handling
Sales
Problem
Resolution
4
Billing
Invoicing
and Rating
Service
Quality
Mediation
Aggregation
Customer Care
Service
Creation
Service
Inventory
Service
Provisioning
Service Product Development and Maintenance
Network
Planning
Element
Network
Maintenance
Management Provisioning Restoration
Network
Monitoring
Network and Systems Management
2
Programmable Network Layer
1
Network Devices
Workflow,
GUI and APIs
Identity and
Security
Inventory and
Topology
Event
Mgmt
IP Mgmt
DNS, DHCP
Addressing
CIA
Programmable and Physical Network Layers
ISV
Presentation_ID
Programmable Network Infrastructure
Perf/SLA
Reporting
Common
3 Services
Cisco + ISV
© 2001, Cisco
© 2002,
Systems,
Cisco Systems,
Inc. All rights
Inc. All
reserved.
rights reserved.
Intelligent
Agents
Cisco
22
NGN – Building an Internet OSS
Today, Most SPs Vertically Integrated
Customer Relationship Mgmt
Service Mgmt
Resource Mgmt
Supplier/Partner Mgmt
Databases of
Record
Customer
…
Service
Resource
Little/no horizontal process flow
No end-to-end customer service view
Highly integrated vertical process flow
Organizational “silos”
Telemanagement Forum
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
23
NGN – Building an Internet OSS
Introduce Modularity, Increase Customer Centricity
Customer Relationship Mgmt
Service Mgmt
Resource Mgmt
Supplier/Partner Mgmt
Databases of
Record
Customer
…
OSS supporting future NGN
•
•
•
•
•
Service
Resource
OSS supporting legacy platforms
Consolidate service mgmt layer
Introduce service modularity, reusability
Re-structure service DBoR
Provide end-to-end service view
Evolve customer-centric service ops
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
24
NGN – Building an Internet OSS
Migrate Legacy Customers to NGN Services
Customer Relationship Mgmt
Service Mgmt
Resource Mgmt
Supplier/Partner Mgmt
Databases of
Record
Customer
…
Service
Resource
Systematic migration of customers to NGN services platform
Up-sell value-added services after migration
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
25
NGN – Making Internet Reliable
Enterprise
Backbone
• Multicast
Sub-Second
Convergence
Enterprise
Premise Edge
Service Provider
Aggregation
Edge
Service Provider
Core
• Gateway Load
Balancing Protocol
• Nonstop
Forwarding with
Stateful
Switchover
• MPLS Fast
Reroute - Node
Protection
• Stateful NAT
• Stateful IPsec
Routing Protocol Convergence Enhancements
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
26
NGN – Making the Business-class Internet
Four Dimensions of Resiliency
Resilient Routing
•
•
•
•
Continuous packet forwarding
Network fault isolation
Fast network convergence
Fast convergence for Multicast
paths
Resilient IP Services
•
First hop resiliency with load sharing
•
Stateful address translation
•
Stateful recovery of security VPN
sessions
Resilient MPLS
Resilient Link Layer
•
Connection state backup and
uninterrupted WAN connectivity
•ATM
•Frame Relay
•PPP/MLPPP
•HDLC
•Ethernet
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
•
Fast rerouting of traffic for link,
node or path failures
•
Bandwidth allocation and
protection services
27
NGN – Delivering Integrated Security
Secure OS
• Memory
Secure
Routing
• File Systems
• Protocols
Security Technologies
•
•
•
•
• Rate Limiting
• etc.
Crypto
PKI
IDS
FW
Network
Infrastructure
Security
Manageability
Technologies
• Ease of Use
• Configuration/provisioning
• Auditing
• Image Distribution
• etc.
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
Access Control
• Quality of Service
• Classification
• Access Control Lists
• AAA
• Passwords
• WLAN: 802.1x, LEAP, SIMM
28
NGN Attributes
Summary
Service Richness & Deterministic
Reliable
& Secure
Consumer
SP Multiservice
Edge
Enterprise
SMB
Access Technologies
• DSL
• Cable
• PL
• Ethernet
• Wireless
Presentation_ID
Edge Attributes
• Scalability
• Feature Richness
• Customer control
• Service Selection
• Interworking
• High & low speed aggr
Transport Attributes
•Packet-awareness
•Efficient Ethernet support
© 2001, Cisco Systems, Inc. All rights reserved.
SP Core
Transport
Core Attributes
• Multiservice
• Smooth Scalability
• Capacity & Infrastructure
• Quality of Service
• Security & Protection
• Investment Protection
29
Current SP Networks
PSTN TDM
NCP
Class 5
Switch
DSS1
Mobile
ISUP
Signaling
Class 4
CAS
Class 4
Switches
Data Network
• Separate networks for
voice, data
• Circuit switched network
for voice
• Voice network still
revenue/profit producing
• Mobile network
fastest growing!
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
IP
H.323
DSS2
ATM
PNNI
FR
Q.922
30
Emerging Technologies Service Provider
Networks
PSTN TDM
Class 5
Switch
Mobile
ISUP
Signaling
DSS1
ATM/IP
CAS
Class 4
Switches
Data Network
• Technology available to modernize
TDM network – BICC; allows
Packetization/Modernization of TDM
networks
• Combined wireless and wire line
traffic growing
• Transport Independent Signaling
mechanisms defined, BICC, SIP
• Many Service Providers still prefer
ATM transport
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
ATM
IP
Q.2931
PNNI
SIP
FR
31
Future SP Networks
Mobile
Signaling Network
MGC
MGC
BICC/SIP-T
ATM
/IP
EO
PSTN
MG
TO
• Convergence of voice and
data networks
• Transport independent
signaling mechanisms
• BICC is important technology
in wireless and TDM network
• Backbone transport packetized
• Many Service Providers still
have ATM transport
Presentation_ID
H.248
H.248
TO
ATM or IP
Network
Network
Edge
Node
© 2001, Cisco Systems, Inc. All rights reserved.
PSTN
EO
MG
Network
Edge
Node
32
Insertion of IP Infrastructure
PSTN TDM
PSTN TDM
BICC
SIP-T
SIP-T
IP
BICC
Signaling?
SIP
Based
Mobile
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
33
VoIP/VoATM/PSTN
Interworking Strategy
IP
ATM
Interworking
MGC
MGC
SIP-T
MGC
BICC
Interworking
MG
VoIP
SIP
Router
MG
Router
MG
H.248
MG
DSS1
(e.g.)
MG
ISUP
Signaling
Media Gateway Control
Bearer Connection
PSTN
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
•Products providing inter-working
between IP, ATM networks and
PSTN are mandatory.
•Cisco is very active in facilitating
PSTN/SIP/BICC inter-working in
ITU.
34
Adoption of BICC In Mobile Networks
SGSN
UTRA
N 3G
Radio
Call Agent
GGSN
MGC
MG
MGC
MG
Packet Switched Domain
IUCS
BICC
MSC
Server
Base
Station
ATM/IP
SS7
GMSC
Server
H.248
3GPP: 3rd Gen. Partnership
MSC
Project
Bearer
UTRAN: UMTS Terrestrial Radio
MG
Access Network
GERAN: GSM Edge Radio Access Network
MSC: Mobile Services Switching Center
GMSC: Gateway Mobile Services Switching Center
SGSN: Serving GPRS Support Node
GGSN Gateway GPRS Support Node
IUCS: Interface between UTRAN and MSC
Presentation_ID
BICC
© 2001, Cisco Systems, Inc. All rights reserved.
Mobile
MGC
MGC
H.248
ATM/IP
H.248
PSTN
ATM/IP
GMSC
Bearer MG
Circuit Switched Domain
MG
Will Adoption of BICC in UMTS
Lead to BICC Deployments in
Fixed TDM Networks?
35
Focus on Standards
• By focusing on ITU and other global stds,
Cisco is emphasizing Carrier Class on all
it’s products
• By focusing on meeting ITU and other
global standards Recommendations on
Performance, Reliability, Availability Cisco
is addressing carrier class requirements
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
36
Future Commitment
• Cisco fully committed to open stds interfaces for
intercarrier & multi-vendor interoperability
• Putting optimum resources behind participating
in IETF, IEEE, ITU-T and various Forums
• Helping in driving towards consistency across
divergent standards activities
• Encouraging strong stds focus on products
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
37
Summary
• SP Next Generation Networks must become a
more reliable and deliver Business-class internet
• Inter-working between SP NGN networks with the
PSTN and the Internet are mandatory
• Interconnections between carriers for IP based
services are becoming important
• New investment, business model environments
require rethinking past paradigms
• Network version of Moore’s Law mandates clear
understanding of NGN and where equipment
investments will be made
Presentation_ID
© 2001, Cisco Systems, Inc. All rights reserved.
38
CPN Ops Symp_030316
© 2003, Cisco Systems, Inc. All rights reserved.
39