Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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1
© 1999, Cisco Systems, Inc.
101
1045_05F9_c1
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© 1999, Cisco Systems, Inc.
101
1045_05F9_c1
Introduction to WAN
Technologies
Session 101
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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101
1045_05F9_c1
© 1999, Cisco Systems, Inc.
Agenda
Wide Area Network (WAN)
• Environment
• Requirements
• Technologies
• Interface Signaling Protocols
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101
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© 1999, Cisco Systems, Inc.
Take-Away Message
• By selecting the right WAN
technology and hardware, you can
Build a uniform multiservice network for
DVV consolidation
Reduce recurring network operation
costs (such as bandwidth)
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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101
1045_05F9_c1
© 1999, Cisco Systems, Inc.
Branch Offices
Regional Offices
Headquarters
Home Offices
Telecommuters
Backbone
Access
Other
Multiple Networking Environments where All Users
Require Ubiquitous Access to Corporate Applications
WAN Networking Environment
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101
1045_05F9_c1
© 1999, Cisco Systems, Inc.
Telecom
Manager
WAN Networking Challenges
Multiple Traffic Types
Increasing Traffic Volumes
Telecom Budget
Increased Scope of WAN
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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7
101
1045_05F9_c1
© 1999, Cisco Systems, Inc.
Multiple Traffic Types
• IP
• IPX
• AppleTalk
• SNA
• Voice
• Video
Leased Lines, Satellite,
Microwave, Circuit Switched,
X25, Frame Relay, ATM, POS
Wide Area
Network
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101
1045_05F9_c1
© 1999, Cisco Systems, Inc.
Source: Gartner Group
More Than
300%
Growth
in WAN
Traffic
by 2002
Voice
Video Teleconference
Office Applications
Client to Server
Server to Server
Internet/Intranet
1998
2000
Networked Application Growth
Copyright © 1998, Cisco Systems, Inc. All rights reserved. Printed in USA.
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101
1045_05F9_c1
© 1999, Cisco Systems, Inc.
Telecom Budgets
Although Traffic