Thursday, November 21, 2013


OSPF. yup. i know you must be have a lot of question about OSPF.
OSPF as you know is a LSPR.
what you must know is the characteristic about OSPF:
- OSFP is a classless routing protocol.
- OSPF update with multicast( and
- OSPF using Djistrak Algorithm to count metric.
- OSPF had AD 110
- OSPF had a fitur to Authentication
You also must known about 5 Type OSPF LSP:
- Hello -> to establish connection and maintain connection with another OSPF.
- DBD(Database Description) -> it contain database value in a router, and being used to database sinchronize with another router.
- LSR(Link State Request) -> To ask about information with an entry in DBD, if different with another router
- LSU(Link State Update) -> to answer LSR and to give a new information.
- LSACK(Link State Acknowledgement) -> To ack all LSP Packet.
- LSA(Link State Advertisemnt) -> Contain information about neighbor network (Cost).
To understand more, let us practice using packet tracer.
Below is the topology

I will skip giving IP Intefaces because i assume you already know how to set IP.
now let set ospf configuration in Router.
Below is the configuration for its
network area 0
network area 0
network area 0
network area 0
network area 0
network area 0
network area 0
network area 0
network area 0
network area 0
Hope this tutorial can help you more understand the concept ospf.
Next time we will learn more about combining ospf,eigrp and rip in a network.


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