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Which routing protocol should be implemented in the new…

You are the network administrator for your company. Your company has opened a new site in London. The
Chief Technical Officer (CTO) of the company wants to implement a routing protocol that can provide the
following features:
Supports multiple large networks
Does not require a hierarchical physical topology
Supports VLSM
Provides loop prevention and fast convergence
Provides load balancing over un-equal cost links
Which routing protocol should be implemented in the new site?

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A.
Enhanced Interior Gateway Routing Protocol (EIGRP)

B.
Open Shortest Path First (OSPF)

C.
Interior Gateway Routing Protocol (IGRP)

D.
Routing Information Protocol version 2 (RIPv2)

Explanation:
Enhanced Interior Gateway Routing Protocol (EIGRP) is the routing protocol that should be implemented for
this scenario. EIGRP is a classless protocol that allows the use of variable length subnet masks (VLSM) and
classless interdomain routing (CIDR) for the allocation of IP addresses. The following are characteristics of
EIGRP:
Supports large networks due to high scalability.
Does not require a hierarchical physical topology.
Provides loop prevention and fast convergence by using Diffusing Update Algorithm (DUAL).
Performs equal cost load balancing by default.
Can be configured to perform unequal-cost load balancing.
Supports VLSM and CIDR.
Is a hybrid routing protocol (a distance-vector protocol that also provides link-state protocol characteristics).
Is a classless protocol.
Sends partial route updates only when there are changes.
Supports Message-Digest algorithm 5 (MD5) authentication.
Has an administrative distance is 90 for EIGRP internal routes, 170 for EIGRP external routes, and 5 for
EIGRP summary routes.
Is only used with Cisco platforms.All the other options are incorrect because they would not provide the features required in this scenario.
OSPF requires a hierarchical physical topology.
IGRP does not support VLSM.
RIPV2 is not designed for multiple large networks.
Objective:
Routing Fundamentals
Sub-Objective:
Compare and contrast distance vector and link-state routing protocols

Cisco > Articles > Cisco Certification > CCNP > Shooting Trouble with IP
Cisco > Support > IP > IP Routing > Design > Design TechNotes > Introduction to EIGRP > Document ID:
13669


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