Chapter 1: Describing Network Requirements

Intelligent Information Network (IIN)

The IIN is a model designed to demonstrate how networks evolve to meet business needs.

The IIN is comprised of four road maps, each suiting a particular business type:

• Service-Oriented Network Architecture (SONA)
• Service Provider Architecture (IP Next Generation Networks, IP-NGN)
• Commercial Architecture
• Consumer Architecture

IIN has three phases:

• Integrated transport - The network serves as a common pathway for all communications traffic
• Integrated services - Services are moved from dedicated hardware to flexible virtualization
• Integrated applications - Application-Oriented Networking (AON); per-application network optimization

SONA

SONA has three layers:

1. Application Layer - Composed of applications for business and collaboration
2. Interactive Services Layer - Flexible virtualization of services
3. Networked Infrastructure Layer - Provides transport shared by all resources

Cisco Network Models

• Campus network
• Branch network
• Data center
• Enterprise edge
• WAN/MAN
• Teleworker