What are the IGRP stability features?



What are the IGRP stability features?..

Answer / vikramsingh11

IGRP has a number of features that are designed to enhance
its stability, such as:
Holddowns
Split horizons
Poison reverse updates

Holddowns Holddowns are used to prevent regular update
messages from inappropriately reinstating a route that may
not be up.

Split horizons Split horizons are derived from the premise
that it is usually not useful to send information about a
route back in the direction from which it came.

Poison reverse updates Split horizons prevent routing loops
between adjacent routers, but poison reverse updates are
necessary to defeat larger routing loops.

Today, IGRP is showing its age, it lacks support for
variable length subnet masks (VLSM). Rather than develop an
IGRP version 2 to correct this problem, Cisco has built upon
IGRP's legacy of success with Enhanced IGRP.

Is This Answer Correct ?    0 Yes 0 No

Post New Answer

More CCNA Interview Questions

Can 2 different VTP Domain Communicate. if yes then How.

7 Answers  


Identify the true statement regarding subnetting? A.) Allows for more host address B.) Borrow bits from the network portion of the address C.) Allows for unlimited number of networks D.) Borrow bits from the host portion of the address

1 Answers  


What is the regional Telco office called, where the customers local loop terminates? A.) Demarc B.) DTE C.) DCE D.) CO E.) CPE

1 Answers  


Identify the command to determine if CDP is enabled? A.) show enable cdp B.) show cdp enabled C.) show cdp run D.) show cdp

1 Answers  


Identify the 3 methods routers learn paths to destinations? A.) Dynamic routing B.) None of the above, configured by default C.) Default routes D.) Administrative distance E.) Static routes

1 Answers  






Which protocol resolves an IP address to a MAC address? A.) DHCP B.) RARP C.) ARP D.) NBP E.) DNS

3 Answers  


2. What are the valid ways to segment a LAN? (Choose all that apply) A. Repeater B. Bridge C. Switch D. Router

2 Answers  


Identify the command that configures the bandwidth to 56K? A.) Router(config-if)# bandwidth 56000 B.) Router(config-if)# bandwidth 56k C.) Router(config)# bandwidth 56 D.) Router(config-if)# bandwidth 56

1 Answers  


What does a Standard IP Access-list use as test criteria? A.) IP source address B.) IP source and destination address, protocol numbers and port numbers C.) IPX source and destination address D.) Source MAC address

1 Answers  


how many seriale interface a managable router has.

4 Answers   IBM,


Identify the 3 characteristics of IPX RIP? A.) Distance vector B.) Does not support multiple paths C.) 60 second updates D.) Default encapsulation is SAP E.) Uses ticks and hop count as a metric

2 Answers  


You are a system administrator on a NetWare network, you are running NetWare 4.11 and you cannot communicate with your router. What is the likely problem? A. NetWare 4.11 defaults to 802.2 encapsulation. B. NetWare 4.11 defaults to 802.3 encapsulation C. Cisco routers only work with NetWare 3.11. D. NetWare 3.11 defaults to 802.2 encapsulation.

1 Answers  


Categories