informe de configuración de routers con OSPF en GNS3Descripción completa
Material didático de apoio ao curso OSPF Avançado, elaborado pela Escola Superior de Redes, que apresenta os detalhes de funcionamento do protocolo OSPF, permitindo ao aluno entender como su…Descrição completa
vyatta ospf
LTE OPNETFull description
tp protocol routage ospf
Material didático de apoio ao curso OSPF Avançado, elaborado pela Escola Superior de Redes, que apresenta os detalhes de funcionamento do protocolo OSPF, permitindo ao aluno entender como su…Full description
OPNET / RIVERBED adalah tools simulasi jaringan yang menyediakan Jaringan Virtual Lingkungan dengan model yang seluruh jaringan, termasuk router-nya, switch, protokol, server, dan aplikasi i…Full description
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ospfFull description
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1
Module: Wired and Wireless C04606
OSPF: Open Shortest Path First 1). In the lab two scenarios Areas and Balanced
2 (b).
Areas Scenario
scenarios are opposite compare to No_Areas scenario . In No_Areas the metric (cost) of the path from Router A to Router C via Router D and Router E is 15 this route is chosen as it the best path delivery. To fully understand the result and analysis we observe Router B and Router H which are least metric (cost) 40 . Therefore, any of these routes can be chosen. Routers first look for the destination address in their routing table in their own area first before sending the packet in scenario Area otherwise any other alternative is selected. Router A, B, C is in same area. Router A to Router C is directly routed here the metric (cost) is 20 which are more than in the No_Areas scenario. In balanced scenario Router B to Router H metric cost 40 applies as load is share by both routes B, Router H and it is distributed over two paths. 2(a).
No_Areas Scenario
the above table is opposite than the previous one. The main difference shows the routes selection for few destinations and the metric (cost) of the routes. What we find In routing table of Router A to network 192.0.2.0 cost is 40 it could be using the Router B or Router C which is interesting. Whereas Router B interface address is 192.0.1.2 and Router C interface address is 192.0.11.2. 2(c) Balanced Scenario
Router A take different route to reach at different routers with difference of metric (cost) .The Metric represents the total cost of routers. To have a understanding we take a example in Router A routing table, Router A to network 192.0.11.0 costs 25, how does it cost 25 well it does starts from Router D (where Router D interface is 192.0.5.2) next hop and via Router A, Router D, E, G, and H therefore metric(cost) is five + five + five + ten= twenty-five .
Student Name: Sheraz Salim
in the above routing table of Router A balanced scenario showing that it is much similar to the routing
Student ID: 20388626
2
Module: Wired and Wireless C04606 table of Router A in No_Areas . Router A has same
The link state database generated database of Router A.
metric (cost).
When network have link failure occurred occurred at 100
4).
The results are generated of the network topology
after link failure occurred .
seconds however LSA timestamp is 105.there is no link metric (cost) to address 192.0.6.0.
No_Areas Routing Table before link Failure
5).the graph shows the
generated result of No_Areas
and Q4_No_Areas_Failure Q4_No_Areas_Failure scenario. Both results are compared Traffic Sent (bits/sec) in this scenario. we disabled the OSPF Sim Efficiency in Q4_No_Areas_Failure Q4_No_Areas_Failure by doing disabling the OSFP Sim The routing table of Router A No_Areas No_Areas after link
Efficiency will let allow routing table to update .
failure.
However we didnt disabled them in No_Areas.
Conclusion The routing table of Router A make changes cause of
The OSPF lab give brief technical aspect how it works.
link failure are as fallowing. Different routes take place
By reading some more material on www.cisco.com the
on higher metric (cost) for example 192. 0.8.0,
lab clear the understanding of how to implement and
192.0.11. 0, 192.0.4. 0, 192.0.2.0.
diagnose OSPF protocols. OPNET it guru make the OSPF
IP address 192.0.6.0 after failed link there is no route
more easy to play and analysis the result we get from
available for the network .
this lab. The lab show us the link state database of router.
Student Name: Sheraz Salim
Student ID: 20388626
3
Module: Wired and Wireless C04606
Reference
1. Cisco system, web address http://ciscosystems .com/en/US/tech/tk365/tec hnologies_white_paper09186a0080094e9e.sht ml 2. Cisco system, Cisco Networking Academy, Routing Module. 3. RFC 1246
