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BGP Route Reflectors and Clusters

Written by Rene Molenaar on . Posted in BGP

Scenario:

As the senior network engineer for a large international company you are always trying to optimize your network and get the most out of your time. The network has a lot of IBGP routers and you got sick of configuring all those neighbor peerings. To fix this you configured the network with some route reflectors...this has saved you a lot of work but you want to take it one step further by clustering the network.

Goal:

  • All IP addresses have been preconfigured for you. You don't see them in the topology picture or it would look like a picasso painting.
  • Each router has a loopback0 interface.
  • All routers belong to AS 1.
  • Configure router Tilburg as the route-reflector for router Amsterdam and Utrecht. Use cluster-ID 1.1.1.1.
  • Configure router NewYork as the route-reflector for router LosAngeles and Boston. Use cluster-ID 4.4.4.4.
  • Configure router Hamburg as the route-reflector for router Dusseldorf and Berlin. Use cluster-ID 7.7.7.7
  • Configure router Tilburg,Newyork and Hamburg with the correct IBGP neighbor peerings.
  • Advertise all loopback0 interfaces in BGP.
  • Ensure you have full reachability within AS 1. All loopback0 interfaces should be reachable.

IOS:

c3640-jk9o3s-mz.124-16.bin

Topology:

BGP Route Reflectors and Clusters

Video Solution:

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Comments (7)

  • avatar
    runelind

    Are the goals below the topology an error? It looks like they belong to another lab :)

  • avatar
    ReneMolenaar

    Hi Mattias,

    The goals are ok. what do you think is confusing? :)

    Rene

  • avatar
    jlashari

    Do you have solution for this lab?

  • avatar
    ReneMolenaar

    I don't have the final configuration for this one yet. In a few weeks i'm back to recording everything. If you are stuck on some part please leave a comment here or at the forum, I'll answer it ok?

  • avatar
    binaryops

    When I try and load this topology, it says that the device Boston is non-existent. Is anyone else having the same problem? I've tried removing and re-adding multiple times and the same results everytime.

  • avatar
    ReneMolenaar

    I just opened it on my PC and it's working here. Is anyone else having issues with this one? I can vaguely recall that I edited this topology after creating it, maybe there's something wrong with it.

    If others have the same issue I'll recreate it.

  • avatar
    rodion

    Hello Rene,
    there is mistake in configuration for LosAngeles FastEthernet1/0:

    >>ip address 192.168.46.4 255.255.255.0

    it should have ip address from 192.168.56.0/24 network