Which configuration allows the injection in a way that XR3 and XR1 have a valid and working route for 10.16.16.0/24?

Refer to the exhibit.

A network operator must inject a Level 1 route from XR2 (10.16.16.0/24) into the ISIS topology.

Which configuration allows the injection in a way that XR3 and XR1 have a valid and working route for 10.16.16.0/24?

A)

B)

C)

D)

A . Option A
B . Option B
C . Option C
D . Option D

View Answer

Answer: D

Explanation:

L1 route injected by XR2 won’t be advertised to XR1, since L2 routes are NOT leaked to L1 by default.

An [L2-L1] route leak policy should be configured on L1/L2 router (XR3).