Server Load Balancing (SLB)


You are the senior network engineer for a large online webshop called “Booky Wooky”. One of your load balancers recently failed and you don’t have any replacement…business hasn’t been so good since the ereaders have been launched a few years ago. You decide to take a spare router and configure it for load balancing…


  • All IP addresses have been preconfigured for you.
  • Configure router SLB so it spreads connections to the webserver in a round-robin fashion to router WWW1 and WWW2.
  • Configure router SLB so WWW1 gets twice as many connections as WWW2.




Server Load Balancing

Video Solution:

Configuration Files

You need to register to download the GNS3 topology file. (Registration is free!)

Once you are logged in you will find the configuration files right here.

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Written by René Molenaar - CCIE #41726

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About the Author: Rene Molenaar

René - CCIE #41726 is the creator of where he shares CCNA, CCNP and CCIE R&S labs. He also blogs about networking on


  1. help!

    Trying …
    % Destination unreachable; gateway or host down

  2. Nice lab and an nteresting service – like the other poster I never knew it existed. I was about to go down another route until I had a look around 🙂

  3. Jack#telnet 80
    Trying, 80 …
    % Connection timed out; remote host not responding

    Please tell me the solution….

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