nerdexam
Cisco

300-320 · Question #183

Two companies recently merged and want to integrate their networks. Both utilize EIGRP to support their complex enterprise networks. Which action can improve the performance of these two separate…

The correct answer is A. Enable route summarization at redistribution points. When merging two separate EIGRP domains, enabling route summarization at the redistribution points reduces routing table size and update overhead, directly improving performance.

Advanced Addressing and Routing Solutions

Question

Two companies recently merged and want to integrate their networks. Both utilize EIGRP to support their complex enterprise networks. Which action can improve the performance of these two separate EIGRP domains?

Options

  • AEnable route summarization at redistribution points.
  • BAdjust the administrative distance to prefer the best routes to each destination.
  • CRemove EIGRP and utilize OSPF instead.
  • DUtilize EIGRP stub routing between the network boundaries of the companies.

How the community answered

(58 responses)
  • A
    83% (48)
  • B
    5% (3)
  • C
    10% (6)
  • D
    2% (1)

Why each option

When merging two separate EIGRP domains, enabling route summarization at the redistribution points reduces routing table size and update overhead, directly improving performance.

AEnable route summarization at redistribution points.Correct

Route summarization at the boundaries between the two EIGRP autonomous systems aggregates multiple specific routes into a single summary advertisement, reducing the number of prefixes each domain must process, shrinking routing tables, and decreasing EIGRP update and query traffic, which improves overall convergence performance.

BAdjust the administrative distance to prefer the best routes to each destination.

Adjusting administrative distance affects route selection preference between competing routes but does not reduce the volume of routing information exchanged or improve overall domain performance.

CRemove EIGRP and utilize OSPF instead.

Migrating from EIGRP to OSPF introduces a significant re-engineering effort and transition risk for two complex enterprise networks and does not inherently improve performance.

DUtilize EIGRP stub routing between the network boundaries of the companies.

EIGRP stub routing is designed for spoke sites in hub-and-spoke topologies to limit query propagation; it is inappropriate for merging two full-mesh enterprise networks and would restrict routing flexibility.

Concept tested: Route summarization at EIGRP redistribution boundaries

Source: https://www.cisco.com/c/en/us/support/docs/ip/enhanced-interior-gateway-routing-protocol-eigrp/16406-eigrp-toc.html

Topics

#EIGRP#route summarization#redistribution points#network merger

Community Discussion

No community discussion yet for this question.

Sign up to join the discussion
Full 300-320 Practice