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How to check network reachablity in a MetroCluster environment

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Applies to

  • ONTAP 9
  • MetroCluster

Description

  • This article explains how to check the lif reachablity in a MetroCluster configuration.
  • LIF placement between clusters in MetroCluster is not decided on a 1:1 naming basis. The primary factor used to determine suitable a port to be used for placement is reachability, as determined by an ARP broadcast.
  • The broadcast is triggered from each connected port on the site with the -mc vserver, the destination for the LIF in event of switchover. Each port that receives a response to the ARP broadcast is marked as eligible for placement.
  • If the port already hosts its own LIF in the same subnet a broadcast is not sent. Instead it is simply marked as eligible for placement.

 

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