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Correct order of the operations of OSPF
1. Hello packets
2. Propagation of link-state information and building of routing tables
3. Establishing adjacencies and synchronisation database
1. Hello packets
2. Propagation of link-state information and building of routing tables
3. Establishing adjacencies and synchronisation database
- a)1-2-3
- b)1-3-2
- c)3-2-1
- d)2-1-3
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Correct order of the operations of OSPF1. Hello packets2. Propagation ...
Answer: b
Explanation: None.
Explanation: None.
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Correct order of the operations of OSPF1. Hello packets2. Propagation ...
Order of Operations in OSPF:
The correct order of operations in OSPF (Open Shortest Path First) is as follows:
Explanation:
The correct answer is option 'B' (1-3-2), which means the correct order of operations in OSPF is:
1. Hello Packets
2. Establishing Adjacencies and Synchronization Database
3. Propagation of Link-State Information and Building of Routing Tables
Here is a detailed explanation of each operation:
1. Hello Packets:
Hello packets are used by OSPF routers to discover neighboring routers and establish adjacencies. These packets are sent periodically, and when received by a router, it can determine the presence of neighboring routers and their willingness to participate in OSPF. Hello packets also include information such as the router ID, network mask, and OSPF priority.
2. Establishing Adjacencies and Synchronization Database:
Once hello packets are exchanged between routers, they establish adjacencies and synchronize their link-state databases. This involves exchanging information about the state of links, the cost of reaching different networks, and other relevant information. Adjacencies are established between routers that are directly connected and have compatible OSPF settings.
3. Propagation of Link-State Information and Building of Routing Tables:
After establishing adjacencies, routers propagate link-state information throughout the network. This information includes the state and cost of links, as well as other network topology information. Each router builds its own routing table based on this link-state information. The routing table determines the best paths for forwarding packets to their destination based on the OSPF cost metric.
Overall, the correct order of operations in OSPF is crucial for the proper functioning of the routing protocol. Hello packets help in neighbor discovery, establishing adjacencies ensures synchronization of link-state databases, and the propagation of link-state information enables the building of accurate routing tables for efficient packet forwarding.
The correct order of operations in OSPF (Open Shortest Path First) is as follows:
- Hello Packets: OSPF routers send hello packets to discover neighboring routers and establish adjacencies.
- Establishing Adjacencies and Synchronization Database: Once hello packets are exchanged between routers, they establish adjacencies and synchronize their link-state databases. This involves exchanging information about the state of links, the cost of reaching different networks, and other relevant information.
- Propagation of Link-State Information and Building of Routing Tables: After establishing adjacencies, routers propagate link-state information throughout the network. This information is used to build routing tables, which determine the best paths for forwarding packets to their destination.
Explanation:
The correct answer is option 'B' (1-3-2), which means the correct order of operations in OSPF is:
1. Hello Packets
2. Establishing Adjacencies and Synchronization Database
3. Propagation of Link-State Information and Building of Routing Tables
Here is a detailed explanation of each operation:
1. Hello Packets:
Hello packets are used by OSPF routers to discover neighboring routers and establish adjacencies. These packets are sent periodically, and when received by a router, it can determine the presence of neighboring routers and their willingness to participate in OSPF. Hello packets also include information such as the router ID, network mask, and OSPF priority.
2. Establishing Adjacencies and Synchronization Database:
Once hello packets are exchanged between routers, they establish adjacencies and synchronize their link-state databases. This involves exchanging information about the state of links, the cost of reaching different networks, and other relevant information. Adjacencies are established between routers that are directly connected and have compatible OSPF settings.
3. Propagation of Link-State Information and Building of Routing Tables:
After establishing adjacencies, routers propagate link-state information throughout the network. This information includes the state and cost of links, as well as other network topology information. Each router builds its own routing table based on this link-state information. The routing table determines the best paths for forwarding packets to their destination based on the OSPF cost metric.
Overall, the correct order of operations in OSPF is crucial for the proper functioning of the routing protocol. Hello packets help in neighbor discovery, establishing adjacencies ensures synchronization of link-state databases, and the propagation of link-state information enables the building of accurate routing tables for efficient packet forwarding.
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