[Cisco 640-878]You have just enabled IS-IS on the lab testing network



You have just enabled IS-IS on the lab testing network. You notice that IS-IS is not using the optimal path selection based on the interface bandwidth. Currently, the IS-IS routing process seems to be selecting the best path based on the hop count.
What configuration change can you make to cause IS-IS to select the optimal path based on the
interface bandwidth?

A. Enable a wide-style IS-IS metric.
B. Enable a narrow-style IS-IS metric.
C. Change the default auto-cost reference bandwidth to a higher value.
D. Change the default IS-IS metric on each of the router interfaces to better correspond to the interface bandwidth.
E. Change the interface bandwidth by using the bandwidth interface configuration mode command.

Answer: D

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