Config Router

  • Google Sheets
  • CCNA Online training
    • CCNA
  • CISCO Lab Guides
    • CCNA Security Lab Manual With Solutions
    • CCNP Route Lab Manual with Solutions
    • CCNP Switch Lab Manual with Solutions
  • Juniper
  • Linux
  • DevOps Tutorials
  • Python Array
You are here: Home / Cisco / CCIE SP MPLS FAQ: Advanced MPLS/VPN Topologies

CCIE SP MPLS FAQ: Advanced MPLS/VPN Topologies

February 5, 2020 by Marques Brownlee

CCIE SP MPLS FAQ: Advanced MPLS/VPN Topologies

Q1. In the context of the MPLS VPN architecture, describe how to create an extranet.

Answer: Import the routes from a VRF into a different VRF that provides connectivity for another VPN.

Q2. When provisioning an extranet, can two organizations that use the same IP addressing structure communicate?

Answer: Yes. However, this requires the deployment of Network Address Translation (NAT) and would usually be provisioned using one or more common central sites.

Q3. List some of the services that might be available through use of the central services topology.

Answer: Application hosting, access to shared equipment, such as voice gateways, and centralized network management.
ccie-sp-mpls-faq-advanced-mpls-vpn-topologies
Figure: Central Services in SuperCom Network

Q4. How are the spoke sites within a central services topology prevented from communicating directly with other spoke sites?

Answer: Through the use of different RT values than on the central site. Each spoke imports only routes that contain the RT value of the central site.

Q5. In the hub-and-spoke topology, how does the hub site attract spoke-tospoke traffic?

Answer: The hub site attracts spoke-to-spoke traffic by importing the spoke RT into the hub VRF and re-exporting the routes using a different RT, which is imported into the spoke VRFs.

Q6. For which type of topology is the AllowAS-in feature required and why?

Answer: The hub-and-spoke topology because the hub site receives updates that contain its own AS number and, therefore, drops the routes if AllowAS is not enabled.

More Resources

  • CCIE SP MPLS FAQ
  • CCNP SP MPLS FAQ
  • CCNP Secure FAQ
  • CCNP Secure IPS FAQ
  • CCNP Route Notes
  • CCNP Route Lab Manual with Solutions
  • CCNP Security VPN FAQ
  • CCNP Switch FAQ
  • CCNP Switch Lab Manual with Solutions
  • CCNA RSE Lab
  • CCNA Cloud FAQ

Related

Filed Under: Cisco

Recent Posts

  • How do I give user access to Jenkins?
  • What is docker volume command?
  • What is the date format in Unix?
  • What is the difference between ARG and ENV Docker?
  • What is rsync command Linux?
  • How to Add Music to Snapchat 2021 Android? | How to Search, Add, Share Songs on Snapchat Story?
  • How to Enable Snapchat Notifications for Android & iPhone? | Steps to Turn on Snapchat Bitmoji Notification
  • Easy Methods to Fix Snapchat Camera Not Working Black Screen Issue | Reasons & Troubleshooting Tips to Solve Snapchat Camera Problems
  • Detailed Procedure for How to Update Snapchat on iOS 14 for Free
  • What is Snapchat Spotlight Feature? How to Make a Spotlight on Snapchat?
  • Snapchat Hack Tutorial 2021: Can I hack a Snapchat Account without them knowing?

Copyright © 2025 · News Pro Theme on Genesis Framework · WordPress · Log in