ICEBERG: From POTS to PANS

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ICEBERG From POTS to PANS

• Anthony D. Joseph
• B. R. Badrinath
• June 11, 1998
• UCB BARWAN Retreat

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Iceberg Architecture
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Outline

• Potentially Any Network Services (PANS)
• Some areas to study
• Service Mobility as a first-class object
• Naming, Authentication, and Billing
• Example service
• Summary

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Potentially Any Network Services (PANS)

• Goal Cross-network services
• Same-service in different networks
• Service handoff between networks
• Related work focused on single networks
• Only PSTN-IP link is being considered
• Leverage NINJA infrastructure
• Service location and composition
• Persistent data storage

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Cross-Network Services

• Example Follow-Me Service
• Exists in PSTN/GSM Static mappings poor UI
• Security and billing based upon line
• How to implement this in Iceberg?
• Example Any-to-Any Access to Services
• Access any service from any I/O device
• E911 Where is the caller?
• Voice over IP gt jitter Bad for IVR tones

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Classes of services

• How to deploy/extend services?
• Cross-implementation of services
• E911, billing, MCIOne
• Mapping of existing services
• Directory services 411, DNS, HLR, VLR, HA
• Voice-mail, E-mail
• Totally new services
• Concierge, location-dependent, best-mode routing

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Partial List of Areas to Study for PANS

• Entities - What are the endpoints?
• Naming - Whats in a name?
• Authentication - Entity to Entity auth.
• Billing - Charging entities not lines
• Routing - QoS and cost issues
• Source conversion - Text-to-Speech, etc.
• Network mgmt - Monitoring, provisioning
• Intelligent terminals - Svcs at the terminal

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Service Mobility as a First-Class Object

• Use indirection for One-to-Many mapping

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Iceberg Inter-Domain Naming Protocol

• Naming
• Reuse networks local naming services
• Single resolution point for universal names
• Routing
• Handles inter-network signaling
• Users provide policies
• IDNP gatekeepers provide policy engine
• IDNP provides replication and consistency control

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IDNP Overview
IAP
IDNP Server
IDNP Server
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Authentication and Billing

• Each network uses a different mechanism
• PSTN relies on line
• GSM uses SIM card (Carrier-carrier agreement)
• Original cellular networks used personal
  agreements
• IP uses host address, X.509, etc.
• Iceberg certificates - two versions
• Online verification by home network (Carrier)
• Offline verification by local network
  (Personal/Visa)

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Call-Forwarding Example

• Callees can change policy and profiles from any
  network
• Secure identification of entities
• IDNP handles propagation of changes
• IDNP can expose domain-specific addresses or hide
  them for privacy
• Domain-specific information exposed to apps
• Interactive?
• Billing policies

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Summer Prototyping Effort

• Integration work
• GSM basestation (GSM-IP)
• H.323 gateway (PSTN-IP)
• Service Discovery
• Cellular data transport protocols
• Information dissemination
• Interactive Voice Response and Control

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Summary

• Services that span multiple networks
• Lots of open problems!
• Related work doesnt address multiple networks
• Iceberg testbed and Ninja infrastructure will
  provide a good proving ground

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ICEBERG From POTS to PANS

• Anthony D. Joseph
• B. R. Badrinath
• June 11, 1998
• UCB BARWAN Retreat