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Cisco Exam 300-410 Topic 4 Question 97 Discussion

Actual exam question for Cisco's 300-410 exam
Question #: 97
Topic #: 4
[All 300-410 Questions]

How are CE advertised routes segmented from other CE routers on an MPLS PE router?

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Suggested Answer: D

In an MPLS PE router, CE advertised routes are segmented from other CE routers by assigning CE-facing interfaces to different Virtual Routing and Forwarding (VRF) instances12. A VRF is a technology that allows multiple instances of a routing table to co-exist within the same router at the same time. By associating a network interface with a VRF, the network layer (Layer 3) has a different view of the network topology. This allows the segmentation of routing paths for traffic from different customers or different types of traffic.In the context of MPLS, VRFs are used to create separate routing instances for each customer on a PE router3.


Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) training videos

CCNP Enterprise Advanced Routing ENARSI 300-410 Official Cert Guide

Implementing Cisco Enterprise Advanced Routing and Services source documents or study guide

MPLS routes to advertise from CE to PE - Cisco Community

Configuring Route Exchange Between PE and CE Devices - CloudEngine 12800 and 12800E V200R005C10 Configuration Guide - VPN - Huawei

Customer edge router - Wikipedia

by Janessa at Sep 12, 2024, 08:01 PM

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Reynalda
4 hours ago
I'm not sure, but I think it could also be A, with a combination of VRF-Lite and MP-BGP.
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Robt
2 days ago
I agree with Viva, that makes sense to me.
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Nana
4 days ago
I agree with A. Using a combination of VRF-Lite and MP-BGP is a standard approach for this.
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Roxane
7 days ago
D seems like the most logical answer. Assigning CE-facing interfaces to different VRFs is a common way to segment CE advertised routes.
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Viva
25 days ago
I think the answer is D, by assigning CE-facing interfaces to different VRFs.
upvoted 0 times
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