Interested to Buy Any Domain ? << Click Here >> for more details...
Explain distance vector routing . What are its limitations and how are they overcome?
- 2 Answers
- 8351 Views
- I also Faced
- E-Mail Answers
Answer Posted / sanjay poudel
It is a dynamic vector routing algorithm.
consists of data structure called routing tables.
it calculates the best route based on the distance.
Distance vector routing updates full routing table.
The utilization of CPU and memory in distance vector routing is lower than the link state routing.
Bellman -Ford algorithm is used for performing distance vector routing.
LIMITATIONS
It is slower to converge than link state.
it creates more traffic than link state since a hop count change must be propogated to all routers and processed on each route.
The bellman-ford algorithm does not prevent routing loops from happening and suffers from the count-to identify problem.
In such such a scenario 3 hop-counts path will be selected although other path is congestion free. This can be overcome by using LSA .
(Link State Analysis) protocols and Hybrid Protocols. In these not only the hop-count is considered but also link quality is checked at regular interval to ensure the selection of not only shortest path but also the most efficient path for the destination
.
| Is This Answer Correct ? | 4 Yes | 1 No |
Post New Answer View All Answers
1.Explain the main purpose of IP address? 2.List two purposes for a web browser? 3.Explain an advantage and a disadvantage of multiple search engines? 4.Describe two roles of Internet Services Providers (ISPs)?
what are the two sub layers of data link layer called ?
Define Enterprise Networks
What are the principles that were applied to arrive at the seven layers in OSI model?
Differentiate between static and dynamic channel allocation.
Explain what is meant by the term ‘integrated service digital network’. Give three reasons a company might choose an ISDN link in preference to a leased line.
1. What ports does FTP traffic travel over? 2. What ports does mail traffic utilize? 3. What ports do HTTP and HTTPS use? 4. Why is NTP required in an NFS network? 5. Name some common mal software on the server side 6. What is CPAN? How do you access it? 7. What is PEAR? 8. What advantages does mod_perl have over a perl CGI? 9. What is required to do SSL in Apache 1.x? 10. What is Tcl? 11. What is a servlet engine/container? 12. What is BIND? 13. Name the steps to setup a slave zone in BIND 14. Name the steps to setup a primary zone in BIND 15. What commands would you use under Solaris or Linux to modify/view an LDAP tree?
1. What is LAN segmentation? Why it is used? What are the different techniques to create LAN segments?
Is the nyquist theorem true for optical fibre or only for copper wire ? Explain.
what is buffering and flooding in NIC ?
which is the latest version of dos? & what is the command to copy windows files (i386) without formatting OS?
What is autonomous system
Explain leaky bucket algorithm and compare it with token bucket algorithm.
Explain HDLC
On a nexus, is the metric-type keyword not available in the "default-information originate" command?
