Transcript Before You Begin: Assign Information Classification

Service Provider network
evolution
Simon Spraggs
[email protected]
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
Cisco Confidential
1
Today’s high level network infrastructure
PSTN/VOICE
ATM/FR
MPLS/IP
Retail voice
Business voice
Wholesale voice
L2 Connectivity
Backhaul services
Retail IP
Wholesale IP
Business VPNs
Business voice
SDH
Optical/Physical media
• Service specific networks
• Dedicated equipment
• Duplication of function
• Obsolescence issues (in places)
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
2
Access &
Aggregation
Transport
& Switch
Software &
Intelligence
A European Provider’s current network infrastructure
Network
Intelligence
Core
Fibres
Network &
Customer Mgt
Product Applications
eg. Callminder
‘Narrowband’ PSTN Switch
IP & ATM
Platforms
UBB
High bit rate Transmission Network (150Mbit/s)
OLOs /
ISPs
ISPs
Core
OLOs
Mobile
OLOs
2Mbit/s Transmission N’wk
Concentrator
Access
Coppe
r
Distribution
Frame
Session Number
Source:© 2005 Cisco Systems, Inc. All rights reserved.
Presentation_ID www.bt.com
Broadband
Small
Business
(DSL)
Access
SDH
Access
Fibre
Local Loop
OLOs
3
Service Provider motivation and strategies
Broadband expansion massive
Fixed PSTN lines static or falling
Falling or flat revenues from fixed line telephony
Broadband needs to fill the revenue hole
Network equipment obsolescence
CAPEX re-alignment for new growth areas
Minimise OPEX in older services
Simplification and convergence
Core and access
Equipment and networks
Evolution not revolution
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
4
IP NGN Journey
Requires Multiple Layers of Convergence
APPLICATION
CONVERGENCE
Integration of New
Innovative IP D/V/V
Services over
Broadband for
Increased Revenue
SERVICE
CONVERGENCE
Service Continuity
across Access for
Customer Loyalty
And Stickiness
NETWORK
CONVERGENCE
Eliminate Layers
in the Network for
Increased
OPEX/CAPEX
Efficiencies
MOBILE
FR/ATM
PSTN
OPTICAL
BROADBAND
SERVICES
IP
Next Generation
Network
HIGH-SPEED
INTERNET
Session Number
IP NGN_EXT_0405
Presentation_ID
©
© 2005
2005 Cisco
Cisco Systems,
Systems, Inc.
Inc. All
All rights
rights reserved.
reserved.
CISCO PUBLIC
5
5
DATA
CENTER
WEB
SERVICES
MOBILE
APPS
IP
CONTACT
CENTER
LAYER
GAMING
PRESENCEBASED
TELEPHONY
Framework
for User and
ApplicationBased Control
Service
Exchange
(Data, Voice, Video,
Mobility)
Customer
Element
Access /
Aggregation
Intelligent
Edge
Multiservice
Core
OPERATIONAL
NETWORK
CONVERGENCE
SERVICE
CONTROL
CONVERGENCE
APPLICATION
AND SERVICES
Application and services
Transport
INTELLIGENT INFORMATION NETWORK
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
6
Innovation at the Application Layer
Presence-Based
Communication
Video
Telephony
Video-onDemand
Multi-Player
Gaming
TV / Web
Integration
Push-to-Talk
Video-Based
Security
Mobile
Enterprise
VOICE
Session Number
Presentation_ID
VIDEO
DATA
Blurring the traditional consumer/business segments
© 2005 Cisco Systems, Inc. All rights reserved.
7
Evolving fixed telephony
APE
DLC
APE
Class 4
APE
Legacy
softswitch
IP/MPLS
DLC
DLC
APE
DLC
APE
DLC
APE
APE
DLC
DLC
Legacy
SoftSwitch
APE
DLC
V
Traditional PSTN
Class 5
Ethernet
V
V
V
Ethernet
IP/MPLS
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
V
V
V
V
8
Mobile network integration
Voice
MSC
TDM/SDH
MSC
MSC
Voice
Signaling & SMS
MSC
TDM/SDH
MSC
STP
Signaling & SMS
MSC
PWLAN
IP/DIN
STP
PWLAN
SGSN (3G)
ATM
SGSN (3G)
SGSN (2G)
FR
SGSN (2G)
IP/MPLS
Intranet
Intranet
DCN
Future
Session Number
Presentation_ID
IP/DIN
IP/SDH
IP/SDH
DCN
Future
IP
© 2005 Cisco Systems, Inc. All rights reserved.
9
NGN applications and services
Residential broadband
Internet  Triple play
Wholesale solutions
Base Internet  Triple play
Business solutions
TDM  Ethernet services
L2VPNsL3VPNs
Everything down a single pipe
PSTN evolution
Class 4 and class 5
FMC
Mobile solutions
Network convergence
FMC
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
10
DATA
CENTER
WEB
SERVICES
MOBILE
APPS
IP
CONTACT
CENTER
LAYER
GAMING
PRESENCEBASED
TELEPHONY
Framework
for User and
ApplicationBased Control
Service
Exchange
(Data, Voice, Video,
Mobility)
Customer
Element
Access /
Aggregation
Intelligent
Edge
Multiservice
Core
OPERATIONAL
NETWORK
CONVERGENCE
SERVICE
CONTROL
APPLICATION
CONVERGENCE
Service Control
Transport
INTELLIGENT INFORMATION NETWORK
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
11
Service Exchange Framework
Multimedia Service Control for Wireline/Wireless Convergence
IDENTITY MANAGEMENT
User / Device ID
Location / Presence
Service Registration
Audit / Logging
Assured Authentication
WHO?
POLICY MANAGEMENT
Subscriber Policy
Application Policy
Security Policy
Per-Sub Service
Service Invocation
WHAT?
Service
Exchange
MOBILITY MANAGEMENT
Device Roaming
Service Mobility
User Mobility
WHERE?
Session Number
IP NGN_NOV2004
Presentation_ID
©
© 2004
2005 Cisco
Cisco Systems,
Systems, Inc.
Inc. All
All rights
rights reserved.
reserved.
DYNAMIC SESSION MANAGEMENT
Call Control / Session Border Ctrl
Rich-Media Control
Bandwidth & QoS per Session
Accounting / Billing
Security Quarantine
HOW?
12
12
The importance of service
• Network is the base transport solution
Provides flat billing transport solution
• Service control is the intelligent service agent
Provides the value add services and differential billing solution
Identity, policy, presence
• Policy services function is defined in all access technologies
• Policy Service infrastructure provides the mechanisms to
provide user and service mobility.
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
13
Service Exchange Framework
DSL example
Identity information
Application requests
AAA and configuration
Cisco
Network
Registrar
BAC
ACS TR-69
Application
Function
Identity information
Cisco
Secure
Cisco Broadband
Policy Manager
Policy
User orientated policy information
Configuration
and
provisioning
DHCP/RADIUS
TR-69
DPI
Policy
interface
Core Network IP
transport
SBC
CPE
Session Number
Presentation_ID
Access Network IP
BRAS/BBNG
transport
© 2005 Cisco Systems, Inc. All rights reserved.
14
DATA
CENTER
WEB
SERVICES
MOBILE
APPS
IP
CONTACT
CENTER
LAYER
GAMING
PRESENCEBASED
TELEPHONY
Framework
for User and
ApplicationBased Control
Service
Exchange
(Data, Voice, Video,
Mobility)
Customer
Element
Access /
Aggregation
Intelligent
Edge
Multiservice
Core
OPERATIONAL
NETWORK
LAYER
SERVICE
APPLICATION
CONTROL
CONVERGENCE
CONVERGENCE
Network Layer
Transport
INTELLIGENT INFORMATION NETWORK
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
15
Multi-Service Carrier Infrastructure
Ethernet
Access
Ethernet
Access
IP /MPLS packet core
Optical core
L3 Services
L2 Services
Service
Element
Service
Element
L3 Services
L2 Services
L1 Services
L1 Services
Voice Services
Voice Services
L1 Services
L2 Services
L3 Services
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
16
Overlaying client networks
Packet Core
Access
Access
Internet Services
Business Services
Packet
Voice
MSE
FR/ATM Services
Consumer Services
Mobile Services
MSE
Voice Services
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
17
General network trends
Structural changes in the network
IP
Evolution
IP/MPLS
Access
• IP/MPLS functionality appearing at exchange or aerial sites
Mainly service related (TDMoP, Voice gateways)
• IP switching closer to end user
Local peer to peer applications
New service requirements
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
18
General network trends
Building the next generation access
Access
L3/L2
Core
IP/MPLS
domain
Access
L3/L2
Core
IP/MPLS
domain
Access
domain
Single Domain
Access
domain
Multi Domain
• Single domain infrastructure
• Multiple domains infrastructure
• IP/MPLS to the fibre edge
• Separate core and access domains
• Core domain
IP/MPLS
• Access domains
Ethernet technology
Control plane varied
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Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
19
General Network trends
Last Mile
60.00
ADSL
50.00
ADSL2
ADSL2+
Mbit/s
40.00
VDSL (4)
30.00
20.00
10.00
5.
5
5.
0
4.
5
4.
0
3.
5
3.
0
2.
5
2.
0
1.
5
1.
0
0.
5
0.00
km
• Copper
ADSL2+ : asymmetrical 26mbps
VDSL2 (G.993.2) : symmetrical up to 100mbps
• FTTH
GE rates achievable
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
20
General Network trends
Ethernet technology
• Ethernet services
Wholesale
Leased line services
• Ethernet connectivity
Edge
GE DSLAM
GE connectivity
Already seeing request in access networks for 10gbps
Core
10gbps on Ethernet
New failure detection mechanisms (BFD)
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
21
General network trends
Video will have a huge impact
VoD
headends
Multicast
ingestion
VoD
headends
Core
IP/MPLS
domain
Increases in bandwidth in core and access networks
10gbps in access layer
New provisioning paradigms in access network
Use of unidirectional connections
Distribution of VoD headends for network efficiency
Session Number
Presentation_ID
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22
Summary
• Highly distributed IP functionality
Possibly down to the aerial sites and concentrator
End to end service using core and edge components
• Pure native Ethernet technology in core and access
Service and bandwidth
• Higher bandwidth to the home
Internet and new services
• Video will impact designs and topologies
Local injection, unidirectional links, asymmetrical
bandwidth, new design paradigms
Session Number
Presentation_ID
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23
Multiservice core and intelligent edge
CUSTOMER
ELEMENT
ACCESS /
AGGREGATION
INTELLIGENT
IP / MPLS EDGE
MULTISERVICE
IP / MPLS CORE
UBR
10000
HOME
NETWORKING
Cable/DSL
SMALL /
MEDIUM
BUSINESS
MGX 8800
AS5XXX
FR / ATM / Media Gateway
Ethernet
Cisco
Catalyst &
7600
ENTERPRISE
/ BRANCH
Cisco CRS-1
Cisco 12000
IP RAN /
STP
Transpor
t
Wireless
Session Number
Presentation_ID
Cisco 10000
Metro Ethernet
HOT SPOT
MOBILE
Cisco 12000
Cisco 7x00
Cisco ONS
153xx MSPP
TDM / Ethernet
© 2005 Cisco Systems, Inc. All rights reserved.
Cisco ONS
15454 MSTP / MSPP
Cisco ONS
15600 MSPP
24
Network Structures
• Hierarchy structures at the edge
Aggregates and stablises the traffic
Scale the edges
Eases provisioning and capacity planning
• Optical mesh or partial mesh within core
Mesh or partially mesh based on highly aggregated and stable traffic profiles
High speed interfaces for excellent delay and jitter characteristics
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
25
Transponder-less optical networking
WDM I/F
WDM I/F
•
WDM I/F
WDM I/F
Today:- Reduction of traditional IP/optical interconnects
10GE LAN PHY
POS VSR optics
•
Mid term:-Transponder-less IP networking
2Q06: 4x10G PLIM on CRS-1
10GE LANPHY and OC-192 over l
Lamda switching in the Cisco MSTP platform
Common management system used on Cisco optical and IP gear
Session Number
Presentation_ID
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26
PoP consolidation
Core
Core
Remote PoP 1
PoP
Aggregation
Remote PoP 2
Edge
Customers
Remote PoP 3
Service
Aggregation
Local Services
Service
• Consolidation of edge and core equipment
• Removal of layers in core PoPs where edge sites are consolidated
• CRS-1 / 12000 series for PoP consolidation
• IOS/XR carrier class software
• Concurrent core and edge functionality
Session Number
Presentation_ID
• Single, ©logical
or virtual routers
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27
Service Element
Dedicated edge
and core
FR / ATM
IP
Multi-Service Edge
Common IP/MPLS core
ATM
IPv4
IP
business
IPv6
Evolution
IP
IP
Consumer
IP / MPLS
ATM
FR
Ethernet
TDM
Ethernet
Session Number
Presentation_ID
GE
Service creation on service element
© 2005 Cisco Systems, Inc. All rights reserved.
28
IP / MPLS network services
Services
Network Services
QoS
Convergence services
VPNs
Multicast
Security
OAM
Traffic Engineering
Policy control
IP/MPLS Forwarding
Optical Transport
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
29
Example: NGN infrastructure
Core
Metro
• Designed for voice, wholesale, business, consumer services
• Core :- mesh of multiple 10gbps links
• Metro:- Multiple 10gbps to core
Session Number
Presentation_ID
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30
Access and Aggregation
CUSTOMER
ELEMENT
ACCESS /
AGGREGATION
INTELLIGENT
IP / MPLS EDGE
MULTISERVICE
IP / MPLS CORE
UBR
10000
HOME
NETWORKING
Cable/DSL
SMALL /
MEDIUM
BUSINESS
MGX 8800
AS5XXX
FR / ATM / Media Gateway
Ethernet
Cisco
Catalyst &
7600
ENTERPRISE
/ BRANCH
Cisco CRS-1
IP RAN /
STP
Transpor
t
Wireless
Session Number
Presentation_ID
Cisco 10000
Metro Ethernet
HOT SPOT
MOBILE
Cisco 12000
Cisco 7x00
Cisco ONS
153xx MSPP
TDM / Ethernet
© 2005 Cisco Systems, Inc. All rights reserved.
Cisco ONS
15454 MSTP / MSPP
Cisco ONS
15600 MSPP
31
Service requirements of access domain
• All services over the same access network
• Retail
Own ISP service
Layer 3 for consumers and SME
Increasingly looking at triple play
• Wholesale
Sold to ISPs
Layer 2 connection (PtoP and multipoint)
Layer 3 (L2TP, MPLS RA)
Potentially layer 1
• Business
SME and above
Layer 2 and Layer 3 Service
Potentially layer 1
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
32
General network trends
Building the next generation access
Access
L3/L2
Core
IP/MPLS
domain
Access
L3/L2
Core
IP/MPLS
domain
Access
domain
Single Domain
Access
domain
Multi Domain
• Single domain infrastructure
• Multiple domains infrastructure
• IP/MPLS to the fibre edge
• Separate core and access domains
• Core domain
IP/MPLS
• Access domains
Ethernet technology
Control plane varied
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
33
Enterprise and SMB evolution
PE
PE
TDM (LL)
ATM/ FR
PE
PE
ATM
or
Ethernet
Ethernet
xDSL
GE Ethernet
Time
STEP CHANGE
Session Number
Presentation_ID
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34
Consumer broadband evolution
WT-101
TR-59
PS
PS
Son of WT-101
PS
ATM
Voice
ATM
Ethernet
Ethernet
GE DSLAM
ATM
Copper
ATM
Copper
ATM
Copper
Ethernet
Copper, fibre,
pwlan
Time
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
35
Physical characteristics
• Topology largely driven by fibre topology
Hub and spoke, multiple layers of switching, ring topologies
• Ethernet link layer technology within the access network is very popular
Cost and speed
• Extremely high bandwidth requirements with the access network
100FE,1GE and even 10GE UNIs
Access infrastructure based on 10gbps and even uni-directional 10GE link technology
• Generally built in islands around the core IP/MPLS infrastructure
End to end service a combination of the access and core functionality
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
36
Multiple injection points
Video Voice
Core
IP/MPLS
domain
V
Ethernet
Access network
Internet
Business
Wholesale
EoMPLS
• Centralised services
•Consumer Internet services
•Business data services (L2 and L3 services)
•Wholesale services
•Distributed services
•Voice services
•Video services
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
37
Efficient support for multicast distribution
Video
Core
IP/MPLS
domain
•Only streams with active receiver sent to each DSLAM
•Max single copy of multicast stream to each DSLAM
•Replication in DSLAM to end users
•Efficient distribution of multicast within the access network
•Potentially multiple injection
•Solutions include :- L2 IGMP snooping, L3 PIM into access network
Session Number
Presentation_ID
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38
Efficient support for point to point connections
Core
IP/MPLS
domain
•Point to point connections
•For unicast traffic requirements
•Enterprise, wholesale and Internet access
Session Number
Presentation_ID
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39
QoS within the access network
V
Core
IP/MPLS
domain
•To the end user :- Multiple VCs to the DSLAM, Diffserv on single VC
•In the access network:- Diffserv mechanisms
•Service based injection points:- Diffserv marking and scheduling
•User based injection points:- Hierarchical scheduling
•
Session Number
Presentation_ID
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40
Aggregation technology choices
Access
Core
Ethernet
Access
Ethernet
IP/MPLS
RSTP
Multi-service
SDH
Session Number
Presentation_ID
Extend
Access
IP/MPLS
IP/MPLS
RSTP
MPLS
MPLS
on Ethernet
on Ethernet
on Ethernet
© 2005 Cisco Systems, Inc. All rights reserved.
41
Aggregation and last mile
V
Core
IP/MPLS
domain
• Aggregation equipment
DSLAMs
IMAPs
Wireless :- hotspot and mobile
• Last Mile
Copper, Fibre, wireless
Key point is common service infrastructure and mobility
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
42
Conclusions
Session Number
Presentation_ID
Presentation_ID
©
© 2003
2005 Cisco
Cisco Systems,
Systems, Inc.
Inc. All
All rights
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reserved.
43
43
PSTN telephony solutions
Soft Switch
Softswitch
Softswitch
QoS
Fast Convergence
Traffic Engineering
Ethernet
PSTN L3 VPN
IP/MPLS
V
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
Ethernet
V
44
Broadband Solution based on L3 VPNs
Video
Middleware
User
Portal
VoD
Multimedia
voice
APPLICATIONS
Access Policy
Manager
Billing
SERVICE
EXCHANGE
AAA
BRAS
Ethernet
QoS
Fast Convergence
Multicast
Policy control
Deep Packet inspection
Broadband
L3 VPN
IP/MPLS
BRAS
Ethernet
Data centres
Internet
BRAS
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
BRAS
TRANSPORT
45
Broadband Solution based on L2/L3 VPNs
Video
Middleware
User
Portal
VoD
Multimedia
voice
APPLICATIONS
Access Policy
Manager
Billing
SERVICE
EXCHANGE
AAA
EoMPLS
Ethernet
BRAS
QoS
Fast Convergence
Multicast
Policy control
Deep Packet inspection EoMPLS
Broadband
L3 VPN
IP/MPLS
EoMPLS
Data centres
Internet
Ethernet
EoMPLS
TRANSPORT
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
46
Enterprise L3 VPNs
Managed
security
admin
portal
Managed
IP centrex Data centre
APPLICATIONS
Access Policy
Manager
SERVICE
EXCHANGE
QoS
Fast Convergence
Multicast
Ethernet
PSTN VPN
IP/MPLS
Ethernet
TRANSPORT
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
47
L2 ATM transport
APPLICATIONS
SERVICE
EXCHANGE
QoS
Fast Convergence
Traffic engineering
AToM
OAM
IP/MPLS
TRANSPORT
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
48
Mobile solution based on L3 VPNs
Video
Middleware
User
Portal
VoD
Multimedia
voice
APPLICATIONS
Access Policy
Manager
Billing
SERVICE
EXCHANGE
AAA
QoS
Fast Convergence
Multicast
Policy control
IP/MPLS
L3 VPN
GGSN
L3 VPN
BRAS
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
TRANSPORT
49
Conclusions
Session Number
Presentation_ID
Presentation_ID
©
© 2003
2005 Cisco
Cisco Systems,
Systems, Inc.
Inc. All
All rights
rights reserved.
reserved.
50
50
Conclusions
• NGN is driven by new services and OPEX reduction
• Single converged intelligent network carry:
Legacy services and new consumer solutions
• Service exchange for service creation
• IP/MPLS packet core infrastructure
• Multi-service intelligent edge
• Ethernet access infrastructure
Session Number
Presentation_ID
© 2005 Cisco Systems, Inc. All rights reserved.
51
Session Number
Presentation_ID
Presentation_ID
©
© 2003
2005 Cisco
Cisco Systems,
Systems, Inc.
Inc. All
All rights
rights reserved.
reserved.
52
52