Cisco Exam 300-410 Topic 7 Question 9 Discussion

Actual exam question for Cisco's 300-410 exam

Question #: 9
Topic #: 7

Refer to the exhibit.

A network administrator configured mutual redistribution on R1 and R2 routers, which caused instability in the network. Which action resolves the issue?

ASet a tag in the route map when redistributing EIGRP into OSPF on R1. and match the same tag on R2 to allow when redistributing OSPF into EIGRP.

BApply a prefix list of EIGRP network routes in OSPF domain on R1 to propagate back into the EIGRP routing domain.

CSet a tag in the route map when redistributing EIGRP into OSPF on R1, and match the same tag on R2 to deny when redistributing OSPF into EIGRP.

DAdvertise summary routes of EIGRP to OSPF and deny specific EIGRP routes when redistributing into OSPF.

Show Suggested Answer

Suggested Answer: C

When doing mutual redistribution at multiple points (between OSPF and EIGRP on R1 & R2), we may create routing loops so we should use route-map to prevent redistributed routes from redistributing again into the original domain.

In the below example, the route-map ''SET-TAG'' is used to prevent any routes that have been redistributed into EIGRP from redistributed again into OSPF domain by tagging these routes with tag 1:

by Tarra at May 08, 2022, 07:51 PM

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