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TRANSCRIPT
Mobile Broadband IPv6 Service MENOG 7
23 October 2010
Mobile Broadband IPv6 Service, MENOG 7 1
Content Slide • Qtel IPv6 Overview • Qtel IPv6 Mobile Broadband Background
– Qtel’s IPv6 Strategy and Priorities – Qtel Internet Service Trends – The Case for Prioritizing IPv6 on Mobile Broadband
• Building an IPv6 Mobile Broadband Service – Mobile Service Considerations – IPv6 PDP Context – Mobile Broadband IPv6 Logical Drawing – Mobile Broadband IPv6 Lab Setup – Mobile Broadband IPv6 Live Deployment
• Lessons Learnt – Lab Testing – Going Live – Highlights
• Potential Next Steps
Mobile Broadband IPv6 Service, MENOG 7 2
Qtel IPv6 Overview
2
• Qtel IPv6 Mobile Broadband Background • Building an IPv6 Mobile Broadband Service • Lessons Learnt • Next Steps
IPv6 Mobile BroadbandProject Timeline1 May, 2010 1 Jul, 2010 1 Sep, 2010 1 Nov, 2010
IPv6 Connection to ISP Established8 Jul, 2010
IPv6 Mobile Broadband Management Approval31 Mar, 2010
Expected IPv6 Mobile Broadband Live1 Nov, 2010
IPv6 Packet Core Kickoff Meeting13 Jun, 2010
IPv6 Lab Testing Completed26 Aug, 2010
Test IPv6 APN Ready22 Aug, 2010
Live IPv6 Planning
9 Sep, 2010 – 20 Sep, 2010
Live IPv6 APN Implementation
23 Sep, 2010 – 21 Oct, 2010
Presentation Title, Date 3 3
Qtel IPv6 Mobile Broadband Background
Mobile Broadband IPv6 Service, MENOG 7
Mobile Broadband IPv6 Service, MENOG 7 4
Qtel’s IPv6 Strategy & Priorities
1. Provide IPv6 capability for consumer access services
2. Prioritize services with largest public address space requirement
3. Maintain IPv4 for infrastructure and O&M whenever feasible
4
Mobile Broadband IPv6 Service, MENOG 7 5
Qtel Internet Service Trends
5
Mobile Broadband IPv6 Service, MENOG 7 6
The Case for Prioritizing IPv6 on Mobile Broadband
1. Largest and fastest growing number of subscribers
2. Least number of CPE issues a) Broadband Forum IPv6 support still at Working Text stage b) Supposedly wide IPv6 support in User Equipment (UE) c) HSPA modems generally don’t require IP addresses
3. Least disruption to existing infrastructure
6
Presentation Title, Date 7 7
Building and IPv6 Mobile Broadband Service
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Mobile Broadband IPv6 Service, MENOG 7 8
Mobile Service Considerations
8
• 3GPP Release versions • 3GPP Release 7 (current) does not support dual stack • 3GPP Release 8 (LTE) supports dual stack
• UE IPv6 Support • WiFi generally supported • 3G less clear
• Performance of IPv6 APN vs. IPv4 APN • Throughput, latency, etc. • Mobile device power consumption
• Access Point Name (APN) Requirements • An APN address pool is either IPv4 or IPv6 (i.e. new APN required) • Seamless transition to IPv6 considering diversity of UEs
9
IPv6 PDP Context
9 21 © Nokia Siemens Networks Customer Confidential JSo / 5.10..2009
For internal use
Example: IPv6 support for GPRS
MS
UDP
PDCP GTP GTP PDCP
RLC
MAC
WCDMA L1
MAC
WCDMA L1 L1 L1
L2
GTP
UDP
IPv4
L2
L1
GTP
UDP
IPv4
L2
L1
UTRAN SGSN GGSN Uu Gn Iu
IPv4
UDP
L2
IPv4
IPv6 IPv6
Link layer Y
Physical layer Y
TCP / UDP
RLC
Relay Relay
Physical layer X
Link layer X
IPv6
TCP / UDP
Server
IP
Network
Gi
Application Application
•! IPv6 PDP Context support
•! Packet Data Protocol Context is the “link” between the mobile and the access router in GPRS
•! IPv6 can be introduced without changing the existing network connecting the network elements
•! Tunneling can be used over IPv4 only segments
Direct Tunnel
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• Packet Data Protocol (PDP) Contexts link the mobile device to the Internet infrastructure
• GGSN must support IPv6 PDP Context & APN
• SGSN & UTRAN infrastructure can remain IPv4 • User traffic is tunneled using GTP regardless of IPv4 or IPv6
Mobile Packet CoreUser Equipment
InternetUE RNC SGSN GGSN ISPNodeB
IPv6 PDP Context IPv6 Connection
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Mobile Broadband IPv6 Logical Drawing
10
Activate IPv6 Features Establish IPv6 Peering
Create IPv6 APN
Establish IPv6 Gi Gateway
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Mobile Broadband IPv6 Lab Setup
11
IPv6 APN Pool2001:1A10:3999::/48
MPLS IPv6Internet
::1::2PE PELAB
CELAB
GGSNISPCE
VLAN
IPv6 Point-to-Point Link
2001:1A10:0:1:8781::3991/1272001:1A10:0:1:8781::3990/127
L3
2001:1A10:0:3999/64
L2 MPLS VPN
• L2 Tunneling reduces the scope of potentiaIPv6 issues
• Point-to-Point topology reduces complexity • The focus is on IPv6 in the Mobile Packet Core
Mobile Broadband IPv6 Service, MENOG 7 12
Mobile Broadband IPv6 Live Deployment
12
IPv6 APN Pool2001:1A10:3999:8000::/50
MPLS(L2VPN)
IPv6Internet
GGSN2
VLAN
IPv6 Point-to-Point Link
L3
IPv6 APN Pool2001:1A10:3999:4000::/50
GGSN1
PE
PE
2001:1A10:0:1:8781::3992/127
2001:1A10:0:1:8781::3994/127
PaCoCE2
PacOCE1
ISPCE
ISPCE
PE
PE
Presentation Title, Date 13 13
Lessons Learnt
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Lab Testing
14
• More difficult than establishing an equivalent IPv4 Lab • Unfamiliarity of IPv6 amongst stakeholders • Issues with relatively new software features
• Shortened service development timeframe • No risk to live service thus simpler change approval process • Sandbox for engineers to learn from mistakes
• There is a financial cost • Mobile Packet Core test lab infrastructure • IPv6 feature licensing costs
Mobile Broadband IPv6 Service, MENOG 7 15
Going Live
15
• Introducing & supporting the additional IPv6 APN is complex • subscriber configuration management (may initially be manual) • Service configurations (Portals, MMS, etc.) • Support systems & billing
• Handset support • Identifying IPv6 capable UEs • Procedures for configuring new APN on UEs • Identifying and communicating with IPv6 candidate subscribers
• Measuring success of Mobile Broadband IPv6 service • Classifying source of issues (UE, Packet Core, ISP, etc.) • Measure churn between IPv6 and IPv4 APNs
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Highlights
16
• Project finished in approximately 8 months • Extra time required due to summer vacations & Ramadan
• Relatively modest network infrastructure cost • GGSN/SGSN licenses • Professional Services
• No disruption to live IPv4 Mobile Broadband service • Dedicated APN • GTP Tunneling
• Major challenge is commercially supporting live IPv6 service • Internal training • Subscriber configuration issues • UE support issues
Presentation Title, Date 17 17
Potential Next Steps…
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Academic Engagement
18
• Engage Qatar-based Universities and Colleges as they can be good resources for;
– Self-sufficient “tech savvy” users providing constructive feedback
– Innovative adoption & development of IPv6 infrastructure
– Helping support the transition to IPv6 within Qatar’s IT community
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Community Engagement
19
• Establishment of a local IPv6 Forum;
– Tangible demonstration to the community that preparations are well underway for IPv4 address space exhaustion
– Stimulate training and education in the ICT industry
– Encourage development of IPv6 .qa content and resources
Mobile Broadband IPv6 Service, MENOG 7 20
Transition Technology Trial
20
• Identify transition technologies best suited to the Qatar market;
– Migration of access infrastructure to IPv6
– Manage the complexity of crossing IPv4/IPv6 domains inside the service provider infrastructure
– Seek incentives for users to migrate to IPv6
– Automatic steering of IPv6 capable UEs to IPv6 APN
Thank you.
Mobile Broadband IPv6 Service, MENOG 7