When static routes are added to a router in a network using a CI/CD pipeline, an Ansible playbook is used to make these changes. Which steps must be added to the pipeline to validate that the changes have the intended effect on the traffic flow?
A.
Add a step to run the debug ip routing command before the change, and add a step after the change to issue the no debug ip routing command.
B.
Add a step to capture the routing table before the change, and add a step after the change to capture it again. Calculate the difference between the two for review.
C.
Add a step to ping a host on each of the static routes before the change, and a step after to repeat the same check. Calculate the difference between the two checks for review.
D.
Add a step to run the same playbook again with the debug option enabled and use grep on the log output to ensure that the commands are not applied again.
B - you have control on the source (router) and the RT is the place to validate new routes. pinging you have to hypothesise the destinations are up and reachable, which can conduct to false negatives
I think B, because pinging hosts on each static route (option C) could help verify connectivity, but it doesn't give a comprehensive view of the routing table and doesn't confirm that the routes are correctly configured.
I thank C. The routing table cannot show changes on traffic flow
upvoted 3 times
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razvan999
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