Shulou(Shulou.com)06/01 Report--

[name of experiment]

OSPF single-area basic configuration.

[purpose of the experiment]

Learn to configure OSPF single-area on the router.

[background description]

Suppose the campus network is connected to the campus network exit router through a layer 3 switch, and the router is connected to another one outside the campus.

The router is connected and is now properly configured to realize the communication between the internal host of the campus network and the external host of the campus network.

This lab takes two routers and one layer 3 switch as an example. There are VLAN10 and VLAN50 on S3550.

The VLAN10 is used to connect the RA,VLAN50 to the host of the campus network.

[demand Analysis]

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

Pass.

[experimental equipment]

One layer 3 switch

2 routers

3 crossed lines or directly connected lines

[experimental principle]

OSPF (Open Shortest Path First, Open shortest path first) protocol is currently the most widely used in the network.

One of a wide range of routing protocols. It belongs to the interior gateway routing protocol and can adapt to the network environment of all sizes. It is a typical chain.

Path status (link-state) protocol.

By spreading the link state information of the device to the whole network, the OSPF routing protocol finally synchronizes each device in the network.

A network-wide link-state database (LSDB), and then the router uses the SPF algorithm to calculate the

Reach the shortest path of other networks, and finally form the routing information of the whole network.

OSPF is a classless routing protocol that supports VLSM (variable length subnet mask). OSPF is carried out in the form of multicast

Advertised by the link state.

In the network environment of large model, OSPF supports the division of areas and makes reasonable planning of the network. It is necessary to divide the area.

Area0 (backbone area) must be present. Other areas are directly connected to the backbone area, or connected through virtual links.

[experimental steps]

Step 1: configure IP on routers and layer 3 switches

Step 2: configure OSPF

Step 3: verify the test

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