Lecture Notes on Wide Area Networks

 

NETW-208 Accessing the WAN The Fourth Cisco Academy Course

Connecting Point A to Point B Using a WAN

What is a WAN
What Does a WAN Look Like

Methods Used to Connect Point A to Point B in LANs, CANs, MANs, and WANs

A Summary of All of the Possible Ways to Connect Point A to Point B
Ethernet
SONET
AT&T Brochure on Ring Services
Analog
DDS
Switched 56K
ISDN
T Carrier
Dark Fiber
Packet Over SONET
Cable
DSL
SMDS
FDDI
Ethernet
AT&T Brochure on Ethernet Services
Satellite
Radio Frequency CAN
Free Space Optics CAN
Radio Frequency MAN
X.25
VPN
MPLS
SIP Trunking
FTTP
Powerline Distribution

Service Providers

Service Providers

Layer 1 Devices Used in WANs

Demarc
CSU/DSU
Analog Modem
ISDN Modem
Cable Modem
DSL Modem
Packet Over SONET Interface
Radio Frequency CAN Equipment
Free Space Optics CAN Equipment
Satellite Equipment
EWAN Equipment
IAD
ADM

Layer 2 Encapsulation Methods Used in WANs

Frames Used on the Original Dedicated Circuits

HDLC | PPP | Channelized ATM
HDLC Capture File
PPP Capture File
ATM Capture File
ATM Capture File

Frames Used on the Original Shared Network

Frame Relay
Frame Relay Capture File

Frames Used on Current Shared Networks

MPLS | The Internet as the Network
MPLS Capture File
PPPoE Capture File

Frames Used on Current Dedicated Circuits

Carrier Ethernet
Ethernet Capture File

Securing the Connection Between Point A and Point B

Basic Network Security Considerations
Details on ACLs
Details on VPNs

Layer 3 Addressing for Point A and Point B

Assigning Addresses Using DHCP
Translating Addresses Using NAT
Moving to IPv6

Repairing the Connection Between Point A and Point B

Basic WAN Troubleshooting