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NS0-157 · Question #280

What communication link is necessary in order to establish an inter-cluster relationship?

The correct answer is C. The intercluster interface on the source cluster must be able to communicate with the intercluster. Establishing an inter-cluster relationship requires that the intercluster LIF on the source cluster can communicate with the intercluster LIF on the destination cluster.

Data Protection and High Availability

Question

What communication link is necessary in order to establish an inter-cluster relationship?

Options

  • AThe cluster interface on each node must be able to communicate with the intercluster interface on
  • BThe cluster interface on the source cluster must be able to communicate with the cluster interface
  • CThe intercluster interface on the source cluster must be able to communicate with the intercluster
  • DThe intercluster interface on the source cluster must be able to communicate with the cluster

How the community answered

(59 responses)
  • A
    2% (1)
  • B
    5% (3)
  • C
    92% (54)
  • D
    2% (1)

Why each option

Establishing an inter-cluster relationship requires that the intercluster LIF on the source cluster can communicate with the intercluster LIF on the destination cluster.

AThe cluster interface on each node must be able to communicate with the intercluster interface on

The cluster interface is used for intra-cluster node-to-node communication within a single cluster and does not need to communicate with any interface on a remote cluster.

BThe cluster interface on the source cluster must be able to communicate with the cluster interface

Cluster interfaces serve internal node communication within one cluster and are not the correct interfaces for establishing inter-cluster peering with a remote cluster.

CThe intercluster interface on the source cluster must be able to communicate with the interclusterCorrect

Intercluster LIFs are dedicated logical interfaces configured specifically for cluster peering and SnapMirror replication traffic. Both clusters must have intercluster LIFs configured, and the source cluster's intercluster LIF must have IP reachability to the destination cluster's intercluster LIF to establish and maintain the peer relationship.

DThe intercluster interface on the source cluster must be able to communicate with the cluster

The intercluster LIF on the source communicating with the cluster interface (rather than the intercluster LIF) on the destination is incorrect - both sides must use their respective dedicated intercluster LIFs.

Concept tested: Intercluster LIF communication for cluster peering

Source: https://docs.netapp.com/us-en/ontap/peering/prerequisites-cluster-peering-reference.html

Topics

#intercluster LIF#cluster peering#inter-cluster relationship#network communication

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