How convergence happen in ospf?

Answer Posted / jitendera

convergence-when ther is nay change in network the
convergence proccess ocuurs.
When a route table or routing database becomes too large
(causing delays in packet processing), Route summarization
and stub areas are options to improve performance. There
are two types of route summarization: inter-areas and
external. ABR [Area Border Routers] summarize stub routes
and ASBR [Autonomous System Boundary Routers] summarize
only external routes.

Let’s see how convergence is reached in a network that
includes stub and totally stub routers.

Another route summarization tool is to create stub areas
and totally stub/stubby Areas. ABRs create sub-networks.
The stub/totally stub areas only communicate to the ABR via
default route 0.0.0.0. This means the stub/totally stub
router does not have a route to the destination; it just
forwards packets to the ABR which will forward the packet
to the destination. However, Stub routers contain all route
tables, whereas a totally stub knows only the routes within
its area

Is This Answer Correct ?    4 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Your company has been assigned the IP address of 201.222.5.0 and require having 20 subnets. As the company’s network administrator, find the following: a) the subnet mask (2 marks) b) the number of useable subnets (2 marks) c) the subnetwork address for the 4th subnet (2 marks) d) the first usable IP address for the 4th subnet (2 marks) e) the last usable IP address for the 4th subnet (2 marks) f) the broadcast address for the 4th subnet. (2 marks)

754


How does cut-through LAN switching work?

670


Explain protocol?

675


How many types of ethernet?

662


Explain the types of ethernet?

661






In port based access-list which command u give instead of ip?

629


What is the key advantage of using switches?

700


Why subnetting is used?

691


How many (minimum and maximum) ports are present in a router?

592


How many ports are present in a router?

682


Can you explain the basic of encryption in VPN?

1898


What is the mesh network?

659


What do you understand by ‘protocol’ in networking?

661


Which updates called incremental updates?

616


Which command we give for see routing table?

668