The document discusses exploring the enterprise network infrastructure. It describes the equipment in the network operations center, including servers, storage, and monitoring gear. It also explains the importance of the enterprise edge in providing internet access and security. The document outlines the characteristics and configuration of routers and switches, including show commands to view settings and interfaces.

1. Exploring the Enterprise
Network Infrastructure
Introducing Routing and Switching in the Enterprise –
Chapter 2
Version 4.0 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 1

2. Objectives
 Interpret network documentation.
– Describe the equipment in the enterprise Network
Operations Center.
 Explain the importance of the enterprise edge in the
provisioning of services.
– Describe the Point-of-Presence for service delivery.
– Identify security considerations and equipment at the
enterprise edge.
 Identify router and switch hardware characteristics and
use router CLI configuration and verification commands.
© 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 2

3. Interpret Network Documentation
 Network infrastructure diagrams
 Physical topology map
 Logical topology map
 Control plane information: failure domains
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4. Interpret Network Documentation
 Floor plans and blueprints
 Redlining shows changes
 As-built diagram documents changes from original
plans
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5. Interpret Network Documentation
 Business Continuity Plan
 Business Security Plan
 Network Maintenance Plan
 Service Level Agreement
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6. Describe the Equipment in the Enterprise NOC
 Raised floors
 High performance UPS and HVAC
 Fire suppression systems
 Network monitoring equipment
 MDF switches and routers
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7. Describe the Equipment in the Enterprise NOC
 Server farm
 Data storage
 Storage Area Network (SAN)
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8. Interpret Network Documentation
 Structured cabling standards
 Main Distribution Facility (MDF)
 Telecommunications room
 Intermediate Distribution Facility (IDF)
© 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 8

9. Explain the Importance of the Enterprise Edge
in the Provisioning of Services
 Point-of-Presence (POP)
 Demarc
 Links to outside services and sites
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10. Explain the Importance of the Enterprise Edge
in the Provisioning of Services
 Security considerations at the enterprise edge
–Denial of Service (DoS) attacks
–Application of filtering policies
 Firewall
 Demilitarized zone
 Intrusion detection and
prevention
© 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 10

11. Explain the Importance of the Enterprise Edge
in the Provisioning of Services
 Connection services
 WAN punchdown block
 Channel Service Unit/Data Service Unit (CSU/DSU)
 Customer Premises Equipment (CPE)
© 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 11

12. Identify Router Hardware Characteristics
 Router functions
 Form factors
 Interfaces
 Management options
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13. Use Router CLI Show Commands
 General use
 Routing related
 Interface related
 Connectivity related
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14. Use Basic Router Configuration Commands
 Configuration management
 Global settings
 Line settings
 Interface settings
 Routing settings
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15. Identify Switch Hardware Characteristics
 Switch functions
 Form factors
 Port density
© 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 15

16. Use Switch CLI Show Commands
 General use
 Interface/port related
 Connectivity related
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17. Use Switch CLI Configuration Commands
 Configuration management
 Global settings
 Interface settings
© 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 17

18. Summary
 Network infrastructure diagrams document devices in a
network
 The enterprise NOC manages and monitors all network
resources
 The enterprise edge provides Internet and local access
services and security against attacks
 Access Layer switches provide end user connections,
security services, and microsegmentation of collision
domains
 Distribution Layer routers control broadcasts and move
packets between locations and the Internet
© 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 18

19. © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 19