| |
| |
Introduction | |
| |
| |
Introduction to Routing and Packet Forwarding Objectives Key Terms Inside the Router | |
| |
| |
Routers Are Computers | |
| |
| |
Routers Are at the Network Center | |
| |
| |
Routers Determine the Best Path | |
| |
| |
Router CPU and Memory | |
| |
| |
CPU | |
| |
| |
RAM | |
| |
| |
ROM | |
| |
| |
Flash Memory | |
| |
| |
NVRAM | |
| |
| |
Internetwork Operating System (IOS) | |
| |
| |
Router Bootup Process | |
| |
| |
Bootup Process | |
| |
| |
Command-Line Interface | |
| |
| |
Verifying Router Bootup Process | |
| |
| |
IOS Version | |
| |
| |
ROM Bootstrap Program | |
| |
| |
Location of IOS | |
| |
| |
CPU and Amount of RAM | |
| |
| |
Interfaces | |
| |
| |
Amount of NVRAM | |
| |
| |
Amount of Flash | |
| |
| |
Configuration Register | |
| |
| |
Router Ports and Interfaces | |
| |
| |
Management Ports | |
| |
| |
Router Interfaces | |
| |
| |
Interfaces Belong to Different Networks | |
| |
| |
Example of Router Interfaces | |
| |
| |
Routers and the Network Layer | |
| |
| |
Routing Is Forwarding Packets | |
| |
| |
Routers Operate at Layers 1, 2, and 3 | |
| |
| |
CLI Configuration and Addressing | |
| |
| |
Implementing Basic Addressing Schemes | |
| |
| |
Populating an Address Table | |
| |
| |
Basic Router Configuration | |
| |
| |
Host Name and Passwords | |
| |
| |
Configuring a Banner | |
| |
| |
Router Interface Configuration | |
| |
| |
Each Interface Belongs to a Different Network | |
| |
| |
Verifying Basic Router Configuration | |
| |
| |
Building the Routing Table | |
| |
| |
Introducing the Routing Table | |
| |
| |
Show ip route Command | |
| |
| |
Directly Connected Networks | |
| |
| |
Static Routing | |
| |
| |
When to Use Static Routes | |
| |
| |
Dynamic Routing | |
| |
| |
Automatic Network Discovery | |
| |
| |
Maintaining Routing Tables | |
| |
| |
IP Routing Protocols | |
| |
| |
Routing Table Principles | |
| |
| |
Asymmetric Routing | |
| |
| |
Path Determination and Switching Functions | |
| |
| |
Packet Fields and Frame Fields | |
| |
| |
Internet Protocol (IP) Packet Format | |
| |
| |
MAC Layer Frame Format | |
| |
| |
Best Path and Metrics | |
| |
| |
Best Path | |
| |
| |
Comparing Hop Count and Bandwidth Metrics | |
| |
| |
Equal-Cost Load Balancing | |
| |
| |
Equal-Cost Paths Versus Unequal-Cost Paths | |
| |
| |
Path Determination | |
| |
| |
Switching Function | |
| |
| |
Path Determination and Switching Function Details | |
| |
| |
Path Determination and Switching Function Summary | |
| |
| |
Summary | |
| |
| |
Labs | |
| |
| |
Check Your Understanding | |
| |
| |
Challenge Questions and Activities | |
| |
| |
To Learn More | |
| |
| |
End Notes | |
| |
| |
Static Routing Objectives | |
| |
| |
Key Terms | |
| |
| |
Routers and the Network | |
| |
| |
Role of the Router | |
| |
| |
Introducing the Topology | |
| |
| |
Examining the Connections of the Router | |
| |
| |
Router Connections | |
| |
| |
Serial Connectors | |
| |
| |
Ethernet Connectors | |
| |
| |
Router Configuration Review | |
| |
| |
Examining Router Interfaces | |
| |
| |
Interfaces and Their Statuses | |
| |
| |
Additional Commands for Examining Interface Status | |
| |
| |
Configuring an Ethernet Interface | |
| |
| |
Configuring an Ethernet Interface | |
| |
| |
Unsolicited Messages from IOS | |
| |
| |
Reading the Routing Table | |
| |
| |
Routers Usually Store Network Addresses | |
| |
| |
Verifying Ethernet Addresses | |
| |
| |
Commands to Verify Interface Configuration | |
| |
| |
Ethernet Interfaces Participate in ARP | |
| |
| |
Configuring a Serial Interface | |
| |
| |
Examining Serial Interfaces | |
| |
| |
Physically Connecting a WAN Interface | |
| |
| |
Configuring Serial Links in a Lab Environment | |
| |
| |
Verifying the Serial Interface Configuration | |
| |
| |
Exploring Directly Connected Networks | |
| |
| |
Verifying Changes to the Routing Table | |
| |
| |
Routing Table Concepts | |
| |
| |
Observing Routes as They Are Added to the Routing Table | |
| |
| |
Changing an IP Address | |
| |
| |
Devices on Directly Connected Networks | |
| |
| |
Accessing Devices on Directly Connected Networks | |
| |
| |
Pings from R2 to 172.16.3.1 | |
| |
| |
Pings from R2 to 192.168.1.1 | |
| |
| |
Cisco Discovery Protocol (CDP) | |
| |
| |
Network Discovery with CDP | |
| |
| |
Layer 3 Neighbors | |
| |
| |
Layer 2 Neighbors | |
| |
| |
CDP Operation | |
| |
| |
Using CDP for Netw | |