Which are OSPF routing protocol features?
Which are OSPF routing protocol features?
OSPF supports/provides/advantages –
- Both IPv4 and IPv6 routed protocols.
- Load balancing with equal-cost routes for the same destination.
- VLSM and route summarization.
- Unlimited hop counts.
- Trigger updates for fast convergence.
- A loop-free topology using SPF algorithm.
- Run-on most routers.
- Classless protocol.
Where is OSPF used?
OSPF is primarily used for internal routing because it’s a link-state routing protocol. OSPF is based on Dijkstra’s algorithm for finding shortest paths between two points.
Which layer protocol is OSPF?
network layer
OSPF is developed by Internet Engineering Task Force (IETF) as one of the Interior Gateway Protocol (IGP), i.e, the protocol which aims at moving the packet within a large autonomous system or routing domain. It is a network layer protocol which works on protocol number 89 and uses AD value 110.
What is OSPF protocol describe its pros and cons?
Pros and Cons of OSPF Protocol OSPF protocol has no limitations in hop count, unlike RIP protocol that has only 15 hops at most. So OSPF converges faster than RIP and has better load balancing. OSPF multicasts link-state updates and sends the updates only when there is a change in the network.
Is OSPF the best routing protocol?
While BGP excels with dynamic routing for large networks, OSPF offers more efficient path choice and convergence speed. Border Gateway Protocol, or BGP, and Open Shortest Path First, or OSPF, are two of the most popular, standards-based dynamic routing protocols used around the world.
What port number does OSPF use?
89 port
Difference between OSPF and BGP
| S.NO | OSPF |
|---|---|
| 6. | In OSPF internet protocol is used. |
| 7. | It works in 89 port number. |
| 8. | OSPF is a Link State type. |
| 9. | In OSPF Dijkstra algorithm is used. |
Is OSPF a layer 3 protocol?
At Layer 3, routers will use dynamic routing protocols (generally Open Shortest Path First or OSPF and BGP in most enterprises) to present a robust network that handles site-to-site link failures and minimizes the burden of IP management.
Is OSPF a Layer 4 protocol?
OSPF is implemented as a layer 4 protocol, so it sits directly on top of IP. Neither TCP nor UDP are used, so to implement reliability OSPF has a checksum and its own built-in ACK. To troubleshoot by sniffing traffic, we need to know that the OSPF multicast address is 224.0.
What are the routing metrics for OSPF?
Routing metrics. OSPF uses path cost as its basic routing metric, which was defined by the standard not to equate to any standard value such as speed, so the network designer could pick a metric important to the design. In practice, it is determined by comparing the speed of the interface to a reference-bandwidth for the OSPF process.
How do I configure routing protocols?
Routing And Remote Access Basic LAN Routing Configuration Click Start | Programs | Administrative Tools | Routing and Remote Access. From the Routing and Remote Access management console, right-click on the server name in the left console pane and select Configure and Enable Routing and Remote Access. On the first page of the Routing and Remote Access Server Setup Wizard, click Next.
How to configure OSPF?
Identify the network interfaces that should run OSPF.
Which routing protocol is best?
Cisco considers EIGRP as the best routing protocol. ISPs have a thing for BGP and IS-IS. Bob in his small startup office with 50 employees and 5 floors uses RIP on his 4 routers. OSPF is preferred in enterprise data centers with multi vendor L3 devices. You see, it all depends….