Exam JN0-363 topic 1 question 7 discussion

BD - The default TOTAL PATH metric for IS-IS is 1023, but the maximum metric for an interface is 63

BD - The default TOTAL PATH metric for IS-IS is 1023, but the maximum metric for an interface is 63

By default, the maximum metric value for an IS-IS interface is 63. This is because the original prefix and topology TLVs (IP Internal Reachability, IP External Reachability, and IS reachability) only gave 6 bits to the metric value. With wide metrics, the cost of an interface can range from 1 to 16,777,215.

BD are the correct ones. By default the metric values is up to 63 for an ISIS enabled interface (this is why 1023 is the default max metric for any ISIS path.....the metric can't go much higher is we calculate based on interfaces using non-wide values (up to 63), so adding multiple less-than-63 interfaces can't result easy in a summary more than 1023.

BD should be the answer

BD CORRECT

Maximum metric value 63 wide metrics enable an is-is interface to have a maximum metric value of around 16 million

I think correct, B,D

it should be BD : metric—Metric value. Range: 1 through 63, or 1 through 16,777,215 (if you have configured wide metrics) Default: 10 (for all interfaces except lo0), 0 (for the lo0 interface)

All IS-IS routes have a cost, which is a routing metric that is used in the IS-IS link-state calculation. The cost is an arbitrary, dimensionless integer that can be from 1 through 63, or from 1 through 16,777,215 (224 – 1) if you are using wide metrics.