Tuesday, May 7, 2013

OSPF Problem 4

Try to solve the lab problem in 10 minutes or less.

  • Verify which router has become DR in VLAN 27 (most likely it is going to be R2).
  • Force the re-election of the DR making sure that previous BDR becomes DR, and previous DR becomes BDR.
  • Do NOT shut down any interface to accomplish this.
  • Do NOT clear ip ospf process to accomplish this.
  • Do NOT reload the router(s) to accomplish this.

Extra Credit
Take as much time as you need to answer the following questions:
  1. Are DR/BDR roles pre-emptive? Why?
  2. What would be the quickest and causing least interruption way of changing the OSPF role in a broadcast network?
  3. In Case of the same OSPF port priority, what parameter is going to determine DR/BDR election?
  4. What would happen if neither SW1 nor R2 became DR? Check your answer in practice.

When you have solved the problem check the hint(s) below:

Lab Hint
  • Do you really need a hint here? Looking for a kindergarten? Wrong place dude.
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