Sunday, January 10, 2010

Networking Lab Series: LAB 1 PART 2

This is the second part of the Networking Lab Series: LAB 1.

Lets start with some review questions and analysis from PART 1:
  • What happened when you did the mutual redistribution CE to PE between EIGRP and BGP?
    • Besides the "redistribute bgp xxx" under EIGRP, What was required for EIGRP to advertise the routes learned from BGP into the EIGRP domain?
      • REASONING:
        • EIGRP, unlike other routing protocols, use a composite metric made of 5 metrics:
          1. Bandwidth (minimum along path)
          2. Delay (cumulative along path)
          3. Reliability
          4. Load
          5. MTU

        • When redistributing from other protocols you will need specify the metrics
  • What happened when you did the mutual redistribution CE to PE between RIP and BGP?
    • Besides the "redistribute bgp xxx" under RIP, What was required for RIP to accept all the routes?
      • REASONING:
        • RIP is a distance vector protocol. Meaning it counts hops. After 15 hops, number 16 means infinite, and the route is discarded.
        • When redistributing from other protocols, if the metric exceed 15, you have to specify a better metric in order for the route to be accepted.
Now that we have that clear, lets continue with the final tasks for LAB 1.

Task 3: IGP Optimization
  • Configure OSPF to set the "Do Not Age" flag on all locally generated LSAs between PE1 and P1
  • Configure ISIS for the fastest possible detection of neighbor lost
  • Configure ISIS to send the minimum amount of updates after a change in the database

Task 4: IGP and EGP Security
  • Configure OSPF Area 0 with MD5 authentication, password CISCO, between ASBR1 and P1 and without password between PE1 and P1.
  • Configure RIP to use authentication between CE1 and PE1 using password CISCO
  • Configure ISIS with an area 2 password using password CISCO
  • Configure EIGRP with MD5 password CISCO between PE2 and CE2
  • Configure BGP with MD5 password CISCO

Task 5: EGP Fine Tuning
  • Configure the EBGP session to converge as quickly as possible in the event of failure
  • Configure BGP peering between ASBR1 and ASBR2 such that AS234 and AS567 only advertises its loopbacks and customers loopbacks to the other carrier
  • Configure BGP ASBR2 to not initiate the BGP handshake with ASBR1. Only ASBR1 should send the initial handshake

Task 6: Multicast AS234
  • Configure pim sparse mode Multicast inside AS234
  • P1 loopback interface should be used as the RP
  • Do not allow for dynamic advertisement of RP information

Task 7: Multicast AS567
  • Configure pim sparse mode Multicast inside AS567
  • P2 loopback interface should be used as the RP
  • BSR should be used to distribute the RP information

Task 8: Multicast BGP
  • Configure ASBR1 and ASBR2 to negotiate the multicast address family over eBGP
  • Configure AS234 RP and AS567 RP to exchange information on active multicast sources
  • Configure the RPs only to accept SA messages for groups in the range

Task 9: Multicast at CE
  • Configure pim-sparse multicast between PE1 and CE1, and PE2 and CE2
  • Join the multicast group in CE1 and make sure CE2 is able to reach it

Well, hope you have fun up to this point. This is the last part of this lab.



  1. I have recommended this blog to all my technology lover friends. They have become a regular follower and are always discussing the amazing posts that are shared here.

  2. Your site has a lot of useful information for myself. I visit regularly. Hope to have more quality items.
    - 2 player games

  3. Your site fantastic, superior quality succeed... Most probably various should realize others despite that they don't take time to advise you.
    HydroMax X-Series

  4. The Pandemic outbreak has caused too much trouble for the online buyers and big vendors like Amazon. During this Covid-19, Amazon is not the only e-commerce store suffering to increase their shopify app development sales, a majority of other web stores are testing their patience

  5. thanks for share this blog .
    this blog is gret article
    home tutor in lahore

  6. Fats may contribute to heart condition attacks, and/or a method to scale back saturated fat intake in treats is by making a substitution for the oil.Unsweetened applesauce are often substituted. coffee bag manufacturer

  7. Great article, This is really helpful for a newbie like me. One thing I am experienced in is creating custom logos so if you want one check below:
    buy a logo

  8. This content material is written very well. Your use of formatting when making your factors makes your observations very clear and clean to apprehend. Thanks.

    law dissertation Writing Service

  9. Great blog here! Additionally your web site a lot up very fast!

    What web host are you the usage of? Can I am getting your *****ociate link to your host?

    I wish my site loaded up as quickly as yours lol Acts 1:8 Foundation

  10. But the furious and fast pace at which technology grew brought about a sea-change in the very perspective of website design and development. mattstauffer com

  11. It is simple to obtain custom paper services. As a result, you do not need to be concerned about how you will approach your writing assignment because you may seek help from an essay service at any time. Their pricing are also very reasonable. As a result, you won't have to be concerned about the charges or expenses you'll pay when getting assignment writing service.

  12. We recently covered the importance of professional website design as well as how a website design company can help you benefit from a customized website. A professional website design company can assist you in leveraging the power of the Internet in a number of ways. Website Design Company Dubai

  13. You always provide useful articles, keep sharing such unique blogs.
    Our company is offering high quality made Outfits at low prices along with free shipping, Such as secret world templar outfits If you are really looking for Leather jackets then you are right here.

  14. This information is really helpful this second part of networking is really amazing. I love it. Thanks for sharing this article. Now it's time to avail jupiter florida airport for more information.

  15. This article is about networking lab series. It really helps me. Keep on sharing your thoughts with us. Keep it up the good work mate. Now its time to avail aluminum window and door Services in london for more information.

  16. The article is all about networking, which is very useful and important now a days. All the lab series are explained very well. Thankyou for share an informative article with us. Now its time to avail Car Services in Orlando for more information.

  17. very helpful article to highlight all aspects of networking. I first start blogging at free hosting services then I started to use to maximize the speed and security.