Referring to the exhibit, which two configuration changes must you apply for packets to reach from R1 to R3 using IS-IS? (Choose two.)

The correct answer is A. On R1, enable Level 1 on the ge-0/0/1 interface. In IS-IS, both levels (Level 1 and Level 2) are D. On R3 enable Level 1 on the ge-0/0/4 interface Similarly, enabling Level 1 on the ge-0/0/4. enabled by default when you enable IS-IS on an interface1. Level 1 systems route within an area. If the destination is outside an area, Level 1 systems route toward a Level 2 system. Therefore, enabling Level 1 on the ge-0/0/1 interface on R1 would allow packets to reach from…

IS-IS

Question

Exhibit

Options

AOn R1, enable Level 1 on the ge-0/0/1 interface. In IS-IS, both levels (Level 1 and Level 2) are
BOn R3 disable Level 2 on the ge-0/0/4 interface.
COn R1, disable Level 2 on the ge-0/0/1 interface.
DOn R3 enable Level 1 on the ge-0/0/4 interface Similarly, enabling Level 1 on the ge-0/0/4

How the community answered

(49 responses)

A
84% (41)
B
6% (3)
C
10% (5)

Explanation

enabled by default when you enable IS-IS on an interface1. Level 1 systems route within an area. If the destination is outside an area, Level 1 systems route toward a Level 2 system. Therefore, enabling Level 1 on the ge-0/0/1 interface on R1 would allow packets to reach from R1 to R3. interface on R3 would allow packets to reach from R1 to R3. These explanations are based on the IS-IS configuration documents and learning resources available at Juniper Networks1 and

Topics

#IS-IS levels#Level 1#Level 2#adjacency configuration

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