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After upgrade cpeer.xcm.update.warn: Periodic update of peer network information failed

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Category:
ontap-9
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DP
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Applies to

 

  • ONTAP 9.8
  • Cluster peering
  • SnapMirror
  • Network

Issue

 

  • After upgrade messages similar to these examples are found in EMS logs
cluster peer ping highlights unstable communication with the peer cluster. 
cpeer.xcm.update.warn: Periodic update of peer network information failed.
The following operations are incomplete: discovery failure.
cpeer.unavailable: Peer cluster netapp TELECOM is no longer available
 
Note:  No changes have been made to the network side, prior to or after the upgrade
  • Some peer IP addresses were unreachable
  • High number of 'malformed packets' seen in TCPDump on the destination side
  • High number of CSM counters on the destination side
  • ICMP requests show (No response found!)

 

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