Telenor and TISPAN NGNJudith Rossebø, ETSI TISPAN Security WG ChairmanSenior Research Scientist, Telenor{[email protected]}
2
• One of the world’s largest mobile operators with 147 mill. mobile subscriptions* * 100% figures - all companies per Q1 2008.
• Norway’s leading telecommunications company
• Largest provider of TV services to the Nordic market
• Total workforce: 35,150 man-years (25,350 outside Norway)
• Market value as of 30 April 2008: NOK 169 billion
Telenor factsTelenor facts
ThailandDTAC 65.5% (*)
HungaryPannon 100% Bangladesh
Grameenphone 62.0%
MalaysiaDiGi 50.8%
UkraineKyivstar 56.5%
DenmarkSonofon 100%
NorwayTelenor 100%
MontenegroPromonte
PakistanTelenor Pakistan 100%
RussiaVimpelCom 33.6%
SwedenTelenor 100%
*Economic exposure
100%
SerbiaTelenor 100%
3
Telenor Involvement in Standardization and ForaTelenor Involvement in Standardization and Fora
Telenor is engaged in several Standardization organizations and Fora:
– ETSI TISPAN, STQ, ESI, SCP
– 3GPP
– IEEE 802
– ITU-T
– IPsphere Forum
– OMA, OMTP
– GSMA
– NGMN
Standards to simplify service deployment, cost efficiency, accessindependence…. a commercially sustainable framework for providing IP services.
4
Next Generation Network - a reference architectureNext Generation Network - a reference architecture
Customers
”Any service, any terminal, anywhere, anytime, to anyone”
Traditional
Vertical(service specific)
PSTN
/ISD
NPS
TN/IS
DN
ATM
/FR
ATM
/FR
Mob
ileM
obile
Sate
llite
Sate
llite
Cab
le-T
VC
able
-TV
Inte
rnet
Inte
rnet
Long term vision
Horizontal(service integration)
Access FibreFibreWLANWLANCellularCellular DSLDSL
Aggregation/core IPIP
Service enabler/Session engine
Applications/content
IMS..IMS..
MessageMessageWebWebVoiceVoiceStreamStream……
Customers
Horizontal layering - modular, flexible architecture
5
New standards driven by new architecture andnew business aspects
Next Generation Network – Why TISPAN?Next Generation Network – Why TISPAN?
TTelecommunication and IInternet converged SServices andPProtocols for AAdvanced NNetworking
6
• IPTV
• QoS in a multi-service environment
– RACS can help us to achieve this
– End to end QoS
• Security
– IPTV security (enhancement of stage 2, definition of stage 3)
– Security for CNG/CND (stage 1, stage 2, stage 3)
– Analyse the inter-relation between security features and architectureof the NGN (IPTV, NAT-T, NASS, RACS etc.) in terms of how to employconsistent security architecture and mechanisms
• IP Interconnection
• Standardize elements and reduce complexity of the NGN
TISPAN – beyond R2 – important topicsTISPAN – beyond R2 – important topics
7
• For the NGN, TISPAN WG7:
– Defines security requirements;
– Defines the security architecture;
– Conducts threat and risk analyses for specific NGN use cases;
– Proposes countermeasures.
WG7 security standardisation is risk-based:Using the ETSI TISPAN methodology for systematic threat,
vulnerability and risk analysis (TVRA)
TISPAN Working Group (WG) 7 is responsible forthe management and co-ordination of thedevelopment of security specifications for TISPAN.
TISPAN approach to securityTISPAN approach to security
8
* References:
ETSI TS 181 016. TISPAN; Service Layer Requirements to Integrate NGN Services and IPTV.
ATIS. IPTV DRM Interoperability Requirements. ATIS-0800001.
ATIS. IPTV Architecture Requirements. ATIS-0800002.
IPTV-Security Requirement Approach.Development of IPTV-building blocks.
• Analyze IPTV services. Basedon this analysis, design anappropriate security model.
– Based on Service requirements*,identify security objectives andthreats and from that deducesecurity requirements
– Define security architecture takinginto account service and securityrequirements
– Develop appropriatecountermeasures asre-useable building blocks
ServiceRequirements
ThreatsSecurity
Requirements
ArchitectureSecurity
Architecture(Functions)
ProtocolsSecurity
Counter-measures(Mechanisms)
Security
1
2 3
9
{source: GSM Association}
IP-related interconnectionIP-related interconnection
Inter-operator IP Packet Exchange (IPX) (Managed)
Third Party Provider
ThirdPartySubscriber
PublicMobile
Network
MobileSubscribers
PublicMobile
Network
MobileSubscribers
Content ProviderContent Provider
CorporateNetwork
CorporateNetwork
Internet(Unmanaged)
“On-Net” Services
“Off-Net” Services
Third Party Provider
Content ProviderContent Provider
CorporateNetwork
CorporateNetwork
PublicMobile
Network
MobileSubscribers
PublicMobile
Network
MobileSubscribers
Calling Party Pays
Calling Party Pays
Calling Party Pays
SIP Proxy/Hub
Other Hub/Proxy
Other Hub/Proxy
Accounting Function
Multi-lateral connection Mgmt
Routing andAddressing
Function
Service Awarefor event based
and stream basedtraffic
Service Layer(“new IPX part”)
Streaming QoS
Conversational (Voice) QoS
Conversational (Video) QoS
Network Layer(“existing GRX part”)
Eg, SIP Voice
Eg, SMTP MMS
Eg, IM & Presence
OriginatingNetwork
TerminatingNetwork
IPX
Traffic detectionfor routing, charging
and Multi-lateraldestination policing
ENUMDNSetc
Best Effort QoSInteractive QoS
10
VoIP interconnectionVoIP interconnection
Challenges with current situation:Service providers are creating isolated islands of users that must use the PSTN to completetheir calls, even if the destination is a VoIP user.
Limits the utility of future VoIP applications and the full potential of lower costs.
PSTN
Wirelessnetworks
Enterprisenetworks
eCommunitiesCable
networks
…
An eCommunity user canconnect to any othereCommunity user for free (pureIP), but must pay for calls sentand received from non-eCommunity users. The samecommonly holds for wireless andother TDM or VoIP providercustomers.
Prior registry approaches have failed because most registries only enable IP – IP connections:- limited economic benefits- and narrow range of total call volume
The point of connection to the PSTN networkin regards to location of call terminationdetermines the cost.
{source: IntelePeer ™, 2007}
11
Conclusions
• TISPAN adresses important NGN standardisation aspects
– Security
– performance (QoS)
– IPTV
– IP-Interconnect
• Standards are important for Telenor
– For interoperability
– For deployment of services
– Arena for expert networking
12
Be inspiring
Telenor - here to help