Contents
What are the advantages in creating multiple areas in OSPF?
smaller routing table (no summarization by default): fewer routing table entries as network addresses can be summarized between areas.
What is an area in OSPF?
An OSPF network can be divided into sub-domains called areas. An area is a logical collection of OSPF networks, routers, and links that have the same area identification. The router does not have detailed information about network topology outside of its area, which thereby reduces the size of its database.
Why do we use area?
Area is a measure of how much space there is inside a shape. Calculating the area of a shape or surface can be useful in everyday life – for example you may need to know how much paint to buy to cover a wall or how much grass seed you need to sow a lawn.
Who invented area?
In the 7th century CE, Brahmagupta developed a formula, now known as Brahmagupta’s formula, for the area of a cyclic quadrilateral (a quadrilateral inscribed in a circle) in terms of its sides.
Why is area and perimeter important?
Perimeter and area are two important and fundamental mathematical topics. They help you to quantify physical space and also provide a foundation for more advanced mathematics found in algebra, trigonometry, and calculus.
What is an ” area ” in OSPF configuration?
An OSPF network can be divided into sub-domains called areas. An area is a logical collection of OSPF networks, routers, and links that have the same area identification.
What are the advantages and disadvantages of OSPF?
• OSPF areas— Dividing an OSPF network into areas decreases the LSDB size and limits the propagation of link-state updates when the topology changes. The routers that are to be ABRs and ASBRs must be identified, as are those that are to perform any summarization or redistribution.
How many routers do you need in OSPF?
OSPF uses a two-layer area hierarchy: Regular (nonbackbone) area – subtypes standard area, stub area, totally stubby area, not-so-stubby area (NSSA), and totally stubby NSSA • An area should have no more than 50 routers.
How are OSPF networks divided into sub-domains?
An OSPF network can be divided into sub-domains called areas. An area is a logical collection of OSPF networks, routers, and links that have the same area identification. A router within an area must maintain a topological database for the area to which it belongs.