OSPF is a dynamic routing protocol used, the SPF algorithm to calculate the optimal route.
OSPF algorithm is good, fast convergence, support large and complex network structure, the impact is not likely to be harmful to the routing information.
OSPF can be adapted to a variety of large-scale network may support area division may be selected based on the bandwidth of the best route, the route from the advantages of non-ring.
OSPF benefits divided area is to reduce the number of LSA and shielding the network changes affected range.
OSPF routing protocol is a typical link-state (Link-state) routing protocol, generally used in the same routing domain. Routing domain refers to an autonomous system (Autonomous System), namely AS, which refers to a set of network exchange routing information through a unified routing protocol routing policy or another. In the AS, all OSPF router maintains a database describing the AS same structure, which is stored in the database information of the corresponding link state routing domain, OSPF router which is calculated by the OSPF routing table database of. As a link-state routing protocols, OSPF link state advertisement packet LSA (Link State Advertisement) transmitted to all routers in an area, which is different from the distance vector routing protocol. Routers running distance vector routing protocol is to pass some or all of the routing table to its neighboring routers.
- Experiment name
Experimental single OSPF area configuration (Cisco)
- Intellectual preparation
Grasp the definition and function of dynamic routing protocol OSPF
Master the dynamic routing protocol OSPF features and works
- Purpose
OSPF dynamic routing control region substantially single configuration and verification results
- Content Experiments
Complete the Cisco router simulator OSPF dynamic routing basic configuration and verification results
- lab environment
Cisco simulator
- Lab topology
- Experimental Procedure
1 , modify the host name router 1 R1:
- Configuring loopback interface address:
- Configuration interface interface address:
- Start OSPF routing network and declare:
- Modify the host name router 2 R2:
- Configuring loopback interface address:
- Configuration interface interface address:
8 , start OSPF routing network and declare:
8 , to modify the host name router 3 R3:
9 , loopback interface address:
10 , the configuration interface Interface Address:
11 , start OSPF routing network and declare:
12 , modifying the host name router 4 R4:
13 , loopback interface address:
14 , the configuration interface interface address:
15 , start OSPF routing network and declare:
16 , configure the IP address of the PC:
17 , see the R1 neighbors:
18 , see the R1 routing table:
19 , see the R1 database:
20 , see the R1 interface information:
21 , see the neighbor R2:
22 , see the R2 routing table:
23 , see R2 database:
24 view of interface information R2:
25 , see R3 neighbors:
26 , see the R3 routing table:
27 , see R3 database:
28 , the R3 interface information see:
29 , see the R4 neighbors:
30 , see the R4 routing table:
31 , see the R4 database:
32 , R4 to view the interface information:
- Results show
1 , to verify the ping from PC1 for the PC0, and the Trace Route:
3 , in the authentication PC0 ping:
4 , in the PC1 ping verification:
