Cisco 2521LF - 2521LF Router Manual do Utilizador descarregar pdf (Página 5)

6-9CSE: Networking Fundamentals — WAN Basics

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SDLC IBM’s SNA data link layer communications

protocol

HDLC Bit-oriented synchronous data link layer protocol

LAPB Data link layer protocol in the X.25 protocol stack

PPP Provides router-to-router and host-to-network

connections over sync and async circuits

X.25 Defines connections for remote terminal access

and computer communications in PDNs

ISDN Permits telephone networks to carry data, voice,

and other source traffic

Frame Relay Switched data link layer protocol that handles

multiple virtual circuits using HDLC; replacing

X.25 due to higher efficiency

WAN Protocols

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Transmission

Options

Transmission

Options

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1 2 3 4 5 6 7 8 9 10 ... 51 52

Introduction 1
WAN Devices 2
WAN Terminating Equipment 2
Circuit Switching 3
Packet Switching 3
WAN Virtual Circuits 4
WAN Protocols 4
Transmission 5
Transmission Options or WAN 6
Services 6
POTS Using Modem Dialup 6
Integrated Services Digital 7
Network (ISDN) 7
Leased Line 8
Frame Relay 8
Asynchronous Transfer Mode 9
Wide-Area Network 10
Requirements 10
Manage Bandwidth to 11
Control Cost 11
Dial-on-Demand Routing 11
Compression 12
Dial Backup 13
Fundamentals 14
Routing 14
Routing Requirements 15
Routing Information 15
Routing Decisions 17
RIP Routing Metrics 17
IGRP Routing Metrics 18
Routers Forward Traffic 18
EIGRP Convergence 20
OSPF Convergence 20
IP Addressing 21
Issues with IP Addressing 22
IP Addressing Solutions 22
Subnetting Overview 23
IP Address Classes 23
Virginia? 24
What Is Route 25
Summarization? 25
Cisco Router 26
Architecture 26
Routers (Operationally) 27
Cisco Family of 27
Cisco 800 Series 28
Cisco 1000 Series 28
Cisco 1600 Series 29
Cisco 1700 Series 29
Cisco 2500 Series 30
Cisco 2600 Series 31
Cisco 2600 Modules 32
Cisco 3600 Series 32
Cisco 3600 Modules 33
AS5x00 Series 33
Cisco 4000 Series 34
Cisco 4500/4700 Modules 34
Cisco 3600 and 4000 35
Positioning 35
Cisco Core Router Platforms 35
Cisco 7500 Series 36
VIPs and Port Adapters 37
VIP2 Models 37
Cisco 7200 and 7500 Network 38
Interfaces 38
Scalable Feature 38
Performance 38
Cisco 12000 Series GSR 39
Enterprise WAN Family 39
Cisco IOS 40
IP Network Services 40
Example: Audio Streaming 41
Infrastructure 43
Applications 43
Traffic Is Grouped into SLAs 45
Step 1: Identify Traffic and 46
IP Packet 47
When there is 48
Benefits: 50
Cisco’s Complete Network 52
Security Solutions 52

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