An engineer has been asked to limit which routes are shared by running two different areas within an OSPF implementation. However, the devices share a common link for communication. Which virtual…

The correct answer is B. OSPFv3. Support for multiple instances per link - With OSPFv3, you can run multiple instances of the OSPF protocol over a single link. This is accomplished by assigning an OSPFv3 instance ID number. An interface that is assigned to an instance ID drops packets that contain a different…

Submitted by lars.no· Apr 18, 2026Plan

Question

An engineer has been asked to limit which routes are shared by running two different areas within an OSPF implementation. However, the devices share a common link for communication. Which virtual router configuration supports running multiple instances of the OSPF protocol over a single link?

Options

AASBR
BOSPFv3
CECMP
DOSPF

How the community answered

(48 responses)

A
2% (1)
B
90% (43)
C
6% (3)
D
2% (1)

Explanation

Support for multiple instances per link - With OSPFv3, you can run multiple instances of the OSPF protocol over a single link. This is accomplished by assigning an OSPFv3 instance ID number. An interface that is assigned to an instance ID drops packets that contain a different ID. https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-networking-admin/ospf/ospf-

Topics

#OSPFv3#Routing Protocols#Multi-instance OSPF#Network Design

Community Discussion

No community discussion yet for this question.

Full PCNSE Practice