
11
Copyright © 1997 Cisco Systems, Inc.
6-21CSE: Networking Fundamentals — WAN Basics
© 1999, Cisco Systems, Inc.
www.cisco.com
Manage Bandwidth to
Control Cost
• Dial-on-demand routing
• Bandwidth on demand
• Snapshot routing
• IPX protocol spoofing
• Compression
Software
Costs 2.7%
Hardware
Costs 8.0%
Transmission CostsTransmission Costs
87.8%87.8%
Maintenance
1.5%
Source: Data Communications
6-22CSE: Networking Fundamentals — WAN Basics
© 1999, Cisco Systems, Inc.
www.cisco.com
Dial-on-Demand Routing
• Dials connection only when needed
• Ideal for low-volume, periodic traffic
• Controls usage costs
Interesting Interesting
TrafficTraffic
Remote SiteMain Office
PSTN
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