Experimental OSPF BASIC configuration

"Experiment Name"

OSPF single area basic configuration.

"Experimental Purpose"

Master the OSPF single area configured on the router.

"Background description"

Suppose the campus network is connected to the campus network egress router via 1 three-layer switches, the router and the other 1 outside the campus

Router connection, now do the appropriate configuration, to achieve campus network internal host and campus network external host communication.

This experiment takes two routers and 1 three-layer switches as an example. The S3550 are divided into VLAN10 and VLAN50,

Where VLAN10 is used to connect ra,vlan50 for connecting to the campus network host.

"Demand Analysis"

It is necessary to configure the OSPF routing protocol on routers and switches, so that the network can be interconnected, so as to realize the sharing of information and

Passed.

"Experimental Topology"

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"Experimental Equipment"

Three-layer Switch 1 units

Router 2 units

Crossover line or straight wire 3 strips

"Pre-knowledge"

Router basic configuration knowledge, OSPF

"Experimental principle"

OSPF (Open Shortest Path first, open Shortest Path Priority) protocol, is currently the most widely used network

One of the broad routing protocols. belong to the internal Gateway routing protocol, can adapt to various scales of network environment, is a typical chain

The road State (link-state) protocol.

The OSPF routing protocol spreads the link state information of the device to the whole network, so that each device in the net synchronizes a

A database (LSDB) with a full network link state, then the router uses an SPF algorithm that takes its own root and calculates the

The shortest path to other networks, eventually forming the entire network by information.

OSPF belongs to the class-free routing protocol, which supports VLSM (variable eldest subnet mask). OSPF is done in the form of multicast

The notification of the link state.

In the large model network environment, OSPF supports the division of the region, and the network is rationally planned. When dividing a region, you must

AREA0 (backbone area) must exist. Other areas and backbone areas are directly connected or connected by virtual links.

"Experimental Steps"

Switch configuration

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Router configuration

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Experimental OSPF BASIC configuration