Refer to the exhibit. The network administrator must mutually redistribute routes at the Chicago router to the LA and NewYork routers. The configuration of the
Chicago router is this:
After the configuration, the LA router receives all the NewYork routes, but the NewYork router does not receive any LA routes.
Which set of configurations fixes the problem on the Chicago router?
A.
B.
C.
D.
In the given scenario, the Chicago router needs to perform mutual route redistribution between OSPF and EIGRP. The issue arises because the EIGRP redistributed routes are not reaching the NewYork router, which indicates the OSPF to EIGRP redistribution might be missing proper metric configuration. For redistribution between different routing protocols, a metric must be set, as routing protocols use different methods to calculate the cost of a route, and there is no automatic conversion between these metrics. EIGRP uses a composite metric based on bandwidth, delay, reliability, load, and MTU. Without specifying an appropriate metric, the routes could be considered unreachable by EIGRP. Therefore, the correct configuration that has to be set in the Chicago router would be to provide a metric for the redistributed routes. The correct answer is choice B: configuring 'redistribute ospf 1 metric 10 10 10 10 10' under the EIGRP configuration. This command sets the metrics for bandwidth, delay, reliability, load, and MTU appropriately for the EIGRP protocol.
We have to specify a metric, if we don’t, redistribution fails. EIGRP and OSPF use different metrics and there is no way to convert from one metric to another. This means we have to configure the metric ourselves. EIGRP uses a metric that is based on bandwidth, delay, reliability, load, and MTU (even though MTU is not actually used in the calculation).
The given answer is correct
This question should have chose two, redistribute eigrp 1 subnets is also needed for O E2 routes to populate in LA
The keyword subnets is not a necessity. It configures redistribution for class-less subnets.
The given answer is correct
Wouldn't they have gotten an error message if they typed the command without the metrics?
There would be no error message if the redistribution command is typed without metrics. In that case, metric would be set to Infinity (unreachable).
B is correct