Table of Contents
VPNs: Reality Behind the Hype
Copyright & Notices
VPNs: Reality Behind the Hype
What’s a Virtual Private Network (VPN)?
What’s a Virtual Private Network (VPN)?
Broadband Packet Service Types
Generic Packet Format: Payload
Generic Packet Format: Header
Generic Packet Format: Header
Address Spoofing: Who sets the address?
Address Spoofing: Who sets the address?
Broadband Packet Types
VPNs: Reality Behind the Hype
Internet Backbone VPN
Internet Backbone VPN
Internet Backbone VPN
Internet Backbone VPN Scorecard
ATM and Frame Relay
Leased Line Replacement VPN Scorecard
Enhanced IP VPN
Leased Line Replacement VPN Scorecard
Next Generation Access
Historical Access Options
New Access Options - xDSL
New Access Options – Cable Modem
New Access Options – Wireless
Access Summary
Access by Service Type
VPNs: Reality Behind the Hype
“Road Warriors”
Business Case: “Road Warrior” using Internet VPN
Fixed Location Telecommuter
Business Case: Fixed Location Telecommuter
Corporate Intranetwork Transport
Business Case: Corporate Intranetwork Transport
Remote Office / Branch Office
Business Case: Remote / Branch Office using LLR VPN and EIP VPN
Application Models and Reference Architectures
Interworking among Application Models
Technology Interworking
Frame Relay / ATM Interworking with IP
IP Access to ATM and Frame Relay Services (New Service Option)
Bottom Line on Business Case
VPNs: Reality Behind the Hype
Security
Physical Security: Transmission Facilities
Physical Security: Office Facilities
Are VPNs Secure?
Flexibility
Scalability & Availability
Manageability and Control
Integrated Total Service Packages
Managed Integrated Access Service
Integrated Total Service Packages
VPNs: Reality Behind the Hype
Summary
Summary
PPT Slide
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