Which two protocols are link-state routing protocols

Examples of link-state routing protocols include Open Shortest Path First (OSPF) and Intermediate System to Intermediate System (IS-IS).

Is OSPF a link-state routing protocol?

Open Shortest Path First (OSPF) is a link-state routing protocol that was developed for IP networks and is based on the Shortest Path First (SPF) algorithm. OSPF is an Interior Gateway Protocol (IGP).

What is an example of a link-state protocol?

A common example of a link state protocol is the OSPF (Open Shortest Path First) routing protocol. Local topological information is advertised by each router in link state advertisements (LSAs).

Is BGP a link-state routing protocol?

BGP is a path vector routing protocol and does not contain a complete topology of the network-like link state routing protocols. BGP behaves similar to distance vector protocols to ensure a path is loop free.

Is BGP a link state?

Border Gateway Protocol Link-State (BGP-LS) is an Address Family Identifier (AFI) and Sub-address Family Identifier (SAFI) defined to carry interior gateway protocol (IGP) link-state database through BGP routing protocol.

Is Eigrp a link-state protocol?

EIGRP is a distance vector & Link State routing protocol that uses the diffusing update algorithm (DUAL) (based on work from SRI International) to improve the efficiency of the protocol and to help prevent calculation errors when attempting to determine the best path to a remote network.

What is link state routing?

Link state routing is a method in which each router shares its neighbourhood's knowledge with every other router in the internetwork. In this algorithm, each router in the network understands the network topology then makes a routing table depend on this topology.

What are the most common link state protocols?

The most common link-state routing protocol is OSPF (Open Shortest Path First). Other link-state protocols include IS-IS (Intermediate System to Intermediate System), an OSI protocol, and Novell's NLSP (NetWare Link Services Protocol).

Is Dijkstra algorithm link state routing?

The Link state routing algorithm is also known as Dijkstra's algorithm which is used to find the shortest path from one node to every other node in the network.

Is is OSPF and BGP protocol?

The main difference between OSPF and BGP is that OSPF is an intra-domain routing protocol using link state routing, and the routing operation is performed inside an autonomous system while BGP is the inter-domain routing protocol that uses path vector routing, with the routing operations performed between two ...

Which is better OSPF or BGP?

OSPF has faster convergence times than BGP. Network convergence is the speed at which a router can adjust the path used to a destination network if a network outage occurs.

Is OSPF based on link state routing or distance vector?

OSPF is not a distance-vector protocol like RIP, but a link-state protocol with a set of metrics that can be used to reflect much more about a network than just the number of routers encountered between source and destination. In OSPF, a router attempts to route based on the “state of the links.”

Which state is OSPF?

Full State

This article analyzed the states OSPF routers go through during OSPF neighbor discovery and adjacency process. We examined in detail each OSPF State including: Down state, Attempt state, Init state, 2-way state, Exstart state, Exchange state, Loading state and Full state.

Is Eigrp a link-state routing protocol?

What is OSPF also known as?

Open Shortest Path First (OSPF) is classified as an Interior Gateway Protocol (IGP). This means that it distributes routing information between routers belonging to a single autonomous system (AS), a group of routers all using a common routing protocol.

Is Dijkstra algorithm link state routing?

The Link state routing algorithm is also known as Dijkstra's algorithm which is used to find the shortest path from one node to every other node in the network.

What is OSPF vs EIGRP?

OSPF uses as a metric the interface bandwidth, whereas EIGRP uses a combination of parameters to calculate the metric. One significant difference between EIGRP and OSPF is that the former supports unequal path load balancing.

Which is better OSPF or BGP?

OSPF has faster convergence times than BGP. Network convergence is the speed at which a router can adjust the path used to a destination network if a network outage occurs.

What is the states of BGP?

In order to make decisions in its operations with peers, a BGP peer uses a simple finite state machine (FSM) that consists of six states: Idle; Connect; Active; OpenSent; OpenConfirm; and Established.

Why is OSPF called link-state?

The OSPF protocol is a link-state routing protocol, which means that the routers exchange topology information with their nearest neighbors. The topology information is flooded throughout the AS, so that every router within the AS has a complete picture of the topology of the AS.

Is OSPF TCP or UDP?

OSPF routers communicate using IP packets. OSPF messages ride directly inside of IP packets as IP protocol number 89. Because OSPF does not use UDP or TCP, the OSPF protocol is fairly elaborate and must reproduce many of the features of a transport protocol to move OSPF messages between routers.