A network has several routers running IS-IS L1L2 mode on the same Ethernet segment. Which action reduces to a minimum the number of IS-IS adjacencies in this segment?
A.
Define only the router on the segment to be DIS
B.
Change all routers connected to this segment to a single-level area
C.
Make the interface priority on the backup DIS lower than the primary DIS
D.
Change half the routers to be L1-only and other half to be L2-only on this segment
Chosen Answer:
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