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    • How To analyze and troubleshoot LIF connectivity issues, in a non-routed network
      https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/How_To_analyze_and_troubleshoot_LIF_connectivity_issues_in_a_non_routed_network
      Applies to ONTAP 9 LIF on non-routed network (subnet) Description After ONTAP upgrade (including failover) a LIF cannot be reached by (some) clients, anymore Takeover and Giveback of the cluster nodes...Applies to ONTAP 9 LIF on non-routed network (subnet) Description After ONTAP upgrade (including failover) a LIF cannot be reached by (some) clients, anymore Takeover and Giveback of the cluster nodes, restored the access for the clients Root Cause Analysis did not reveal any issue on the ONTAP side (it was found that other clients on the same lif/network were able to connect)
    • After ONTAP reboot, LIFs are inaccessible when static ARP entries are present
      https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/After_ONTAP_reboot_LIFs_are_inaccessible_when_static_ARP_entries_are_present
      Applies to ONTAP 9 Issue Following an ONTAP reboot (such as an upgrade), some LIFs are inaccessible from one or more clients Pings between impacted LIFs and clients fail Filer-side packet traces do no...Applies to ONTAP 9 Issue Following an ONTAP reboot (such as an upgrade), some LIFs are inaccessible from one or more clients Pings between impacted LIFs and clients fail Filer-side packet traces do not show evidence of clients responding to outbound traffic from the filer
    • Data LIF of the takeover node briefly disconnects during node takeover
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/Data_LIF_of_the_takeover_node_briefly_disconnects_during_node_takeover
      Sun Feb 13 16:12:17 +0100 [node01: vifmgr: vifmgr.lifsuccessfullymoved:notice]: LIF node02-cifs (on virtual server 3), IP address 10.20.20.10, is now hosted on node node01, port a0d. Sun Feb 13 16:12:...Sun Feb 13 16:12:17 +0100 [node01: vifmgr: vifmgr.lifsuccessfullymoved:notice]: LIF node02-cifs (on virtual server 3), IP address 10.20.20.10, is now hosted on node node01, port a0d. Sun Feb 13 16:12:17 +0100 [node01: vifmgr: vifmgr.lifsuccessfullymoved:notice]: LIF node02-nfs (on virtual server 3), IP address 10.20.21.8, is now hosted on node node01, port a0d.
    • NDMP backups fails establishing a connection on port 10000
      https://kb.netapp.com/on-prem/ontap/DP/NDMP/NDMP-KBs/NDMP_backups_fails_establishing_a_connection_on_port_10000
      Because it is unable to connect to the NetApp NDMP Server on port 10000, the DMA is unable to configure NDMP hosts or backups. The failed attempts to connect to NDMP cause the DMA to return messages t...Because it is unable to connect to the NetApp NDMP Server on port 10000, the DMA is unable to configure NDMP hosts or backups. The failed attempts to connect to NDMP cause the DMA to return messages that suggest connection to the NetApp host failed, or that the host could not be reached. Some common cause for this error are: the computer name is typed incorrectly, the computer is not powered on, a Backup eec agent is not installed, or the network is improperly configured.