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NS0-157 · Question #274

What communication link is necessary in order to establish cluster peer relations between two clusters?

The correct answer is D. The intercluster interface on each node must be able to communicate with the intercluster. Cluster peering in ONTAP requires that intercluster LIFs on each cluster node can communicate with the intercluster LIFs on the remote cluster nodes across the peering network.

Data Protection and High Availability

Question

What communication link is necessary in order to establish cluster peer relations between two clusters?

Options

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

How the community answered

(59 responses)
  • A
    2% (1)
  • B
    3% (2)
  • D
    95% (56)

Why each option

Cluster peering in ONTAP requires that intercluster LIFs on each cluster node can communicate with the intercluster LIFs on the remote cluster nodes across the peering network.

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

The cluster (intracluster) interface is used for internal node-to-node communication within a single cluster, not for peering between separate clusters.

BThe cluster interface on each node must be able to communicate with the node-mgmt interface

The node-mgmt interface is used for node administrative access and plays no role in establishing cluster peer relationships.

CThe intracluster interface on each node must be able to communicate with the intracluster

The intracluster interface handles internal cluster traffic only and cannot be used to bridge connectivity between two separate clusters for peering.

DThe intercluster interface on each node must be able to communicate with the interclusterCorrect

Cluster peering uses intercluster logical interfaces (LIFs) specifically created for replication and peering traffic between separate ONTAP clusters. Each node's intercluster LIF must have IP-level reachability to every intercluster LIF on all nodes in the peer cluster, as ONTAP will test this connectivity during the cluster peer create process. Without bidirectional intercluster LIF reachability, the peer relationship cannot be established.

Concept tested: ONTAP cluster peering intercluster LIF connectivity requirements

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

Topics

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

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