tailieunhanh - PPC – Chapter 2

Static Routing. Objectives: Define the ge e a role a router pays in networks. Describe the directly connected networks, different router interfaces. Examine directly connected networks in the routing table and use the CDP protocol. Describe static routes with exit interfaces. Describe summary and default route. Examine how packets get forwarded when using static routes. Identify how to manage and troubleshoot static routes. | 11111111 CISCO Static Routing Routing Protocols and Concepts - Chapter 2 ITE PC Chapter 1 2007 Cisco Systems Inc. All rights reserved. Cisco Public 1 Objectives Define the general role a router plays in networks. Describe the directly connected networks different router interfaces Examine directly connected networks in the routing table and use the CDP protocol Describe static routes with exit interfaces Describe summary and default route Examine how packets get forwarded when using static routes Identify how to manage and troubleshoot static routes ITE PC Chapter 1 2007 Cisco Systems Inc. All rights reserved. Cisco Public 2 General Role of the Router Functions of a Router Best Path Selections Forwarding packets to destination Routers perform packet forwarding by learning about remote networks and maintaining routing information. - The routers primary forwarding decision is based on Layer 3 information the destination IP address. - The router s routing table is used to find the best match between the destination IP of a packet and a network address in the routing table. - The routing table will ultimately determine the exit interface to forward the packet and the router will encapsulate that packet in the appropriated data link frame for that outgoing interface. ITE PC Chapter 1 2007 Cisco Systems Inc. All rights reserved. Cisco Public