Transcript Jasmin-Kukavica

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OBR70121a
What Type of Network Intelligence is
Needed in Next Generation Access
Networks and Where?
The case for intelligent access
Jasmin Kukavica
Agenda
 NGA business model challenges
 Fundamental changes in telco service delivery
 How trends influence on NGA active network
requirements
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 Why network intelligence is needed?
 What type of network intelligence and where?
 Intelligent Service Access
 The answer for sustainable NGA deployment
1
NGA business model challenges
 Investments in fiber acces or next generation
access (NGA) networks are CAPEX intensive
 Current Telco business model
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Vertical services
Flat rate unlimited broadband access
Problems with take-up rate
Money just from the end customer
 Difficult for investors (network providers) to
capitalise all the socio-economic benefits of highspeed fiber access networks
2
“Dumb Pipe” broadband model
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Over-the-top providers offer more & more services.
Q: What can a network provider do?
Nothing…
Sell more bandwidth…
Modify business model…
3
Change of business model
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 Fiber access networks will require change of business model
based on following simple business ideas:
 Percieved value of different services and applications (which
run on high speed broadband network) is different to different
customers
-> Network intelligence for QoS differentiation and charging of
services per customer based on her/his priorities
 Value of network is higher with more customers and services
running on it
-> Shared investments, wholesale, open broadband networks,
“virtualisation of networks”
4
Customer
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Internet
VoIP
IPTV
Customer
Tablets
IP session C
IP session B
IP session A
Ethernet
IP/Ethernet
E- services
Content
Providers
Telco
services
Internet
Services/Applications
IPTV
VoIP
Internet
Service Network
Telco world is changing on several layers
IPv4=> IPv6
(L2 wholesale)
Network Provider
Sm@rt
phones
Media TV /NTB
IP sessions based network intelligence
Customer side
Subscriber managment
Services/Applications
AAA, Policy, DHCP, MN, (Self)provisioning
Internet
IP sessions
IP sessions
Telco
Services
IP sessions
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Content
Providers
E-Services
6
Where to implement network intelligence?
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 Network Service delivery is an end to end story, but
the network can be divided in two main functional
parts:
 Subscriber Service edge
 Subscriber service profile
 Application aware
 Controlling IP sesssions
 Reliable packet transport according to SLA
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L3 vs. L2 service edge
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 L3 service edge (subscriber  L2 service edge (subscriber
and application aware)
and application aware)
+ needed for ISPs and L3 VPN
services
- How to control bottelnecks in
the access, aggregation,
backhaul?
- Scalability and price (growing
bandwidth, number of
sessions to control)
Solution: Distribution (of
functions) and simplification
+ Needed for next generation
wholesale, open access
provider provider, business L2
VPN services
+ In Access or Aggregation (for
legacy access nodes)
+ Service provisioning close to the
customer
+ Enchanced network security
and QoS control
+ Lower network CAPEX and
TCO
8
L2 Service Edge Architectures
Network provider
Service provider
MPLS transport
L2SE
1:1 VLAN
CPE
Access
Aggregation
Distribution
Possible placement
for L2SE
L2SE
CPE
Aggregation
Distribution
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Access
L2 service instances, E-Line, E-LAN services
L2SE
L2 service edge, per subcriber service control
and provisioning,
MPLS (or PBB) packet transport only, no per
subcriber service provisioning or operations
Moving intelligence to the access (ISA)
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 L2 (Ethernet) service edge:
 QoS (bandwidth, priortiy) per subscriber per service per
service/application provider
 Advanced VLAN “manipulation”
• i.e. different types of QinQ, VLAN remarking, multicast VLAN
 IP session (application, service) awarness and high access list
scalability (needed for QoS, security, accounting actions) based on
L2, L3 L4 header information
 AAA (Authentication, Authorisation, Accounting) client
 Profile (subscriber, service) based provisioning of L2 network
services
 More in the future
10
What are the key benefits of ISA?
 Lower CAPEX due to less complex aggregation (and IP
edge in some cases) equipment:
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 Network Provider for L2 wholesale services
 Open Access providers
 Vertically integrated network and ISP providers
 Lower OPEX due to easier e2e QoS and subscriber
service provisioning (just on subscriber port)
 Abillity to innovate and develop advanced business
models for network providers (OTT and Telco synergy)
 Abillity for advanced business connectivity on universal
access platform
11
Conclusion
 NGA networks are not just about new physical
layer
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 Innovative (and new) business models should
have innovative network features
 The right active network architecture is the key
part of the NGA network
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