1. Ensuring the Readiness of Next Gen Multimedia Applications & Services
Pierre Lynch
Director of Wireless and IMS
Ixia

2. Agenda Discussion of IMS issues and concerns Recommendations
What they are
How they affect things
Recommendations
Conclusions

3. Distributed architectureAS
SCIM
HSS
Application Layer
S-CSCF
BGCF
I-CSCF
MRFC
MRFC
Control Layer
P-CSCF
MRFP
MGW
MGCF
PDF
PSTN
Transport Layer
IP CAN

4. Multi-vendor solutions
Subsystems
Control
Security
Media
HSS
Handsets/Terminals
L2/L3
More inter-vendor interfaces
Interop becomes more important
More at stake than just handsets

5. Multi-Level Security Platform Application IPSec Platform Firewalls
IPSec/AKA
Sub & Net Auth

6. Multiple standards bodies
3GPP
TISPAN
Packet Cable
MSF
3GPP2 (MMD)
More:
security options
policy control options
admission control options

7. Data migration Common Subscription and Service information
Migrating data to the IMS will be large task
Testing the data migration
Testing the changes
Internet
PSTN
WiMAX/WiFi
UMTS
Cable
cdma2000

8. Performance & Capacity
Many elements:
Application
Individual Nodes
Core Network
User Experience
Different measurement types
All can impact each other !

9. ? Technology Concerns QoS/QoE Security on Gm Sigcomp NAT/PT
Dependency in the network
Features must be supported here too
Resource and admission control ?

10. Lucent views White paper: IMS Early Adopters: Lessons Learned
Best practices: Selecting the Right Lab/Testing Strategy
Lab 1: mirror the live environment
Lab 2: mirror the future environment

11. Conclusions Architecture -> Flexibility -> Complexity
Multitude of vendors
Change -> Impacts Everywhere
Test Changes before Deployment