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    • Packet loss reported with LIFs on a static multimode ifgrp
      https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Packet_loss_reported_with_LIFs_on_a_static_multimode_ifgrp
      Applies to Ontap 9 Static multimode ifgrp ifgrp ports connected to different switches Issue Packet loss reported, and suspected to be occurring within the broadcast domain, not in a remote network thr...Applies to Ontap 9 Static multimode ifgrp ifgrp ports connected to different switches Issue Packet loss reported, and suspected to be occurring within the broadcast domain, not in a remote network through which the traffic is routed LIF seeing frequent packet loss is hosted on a static multimode ifgrp (e.g. not configured to use LACP) Switches do not support LACP Switches do not support vPC
    • Does single mode ifgrp in ONTAP 9 support disabling auto revert feature?
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Does_single_mode_ifgrp_in_ONTAP_9_support_disabling_auto_revert_feature
      Applies to ONTAP 9 Answer There is no auto revert concept in single mode ifgrp Network interface failover feature in ONTAP 9 provides auto revert option. Additional Information Network interface failo...Applies to ONTAP 9 Answer There is no auto revert concept in single mode ifgrp Network interface failover feature in ONTAP 9 provides auto revert option. Additional Information Network interface failover policies - behavior and uses
    • Can an interface group (IFGRP) be modified after it is created?
      https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Can_an_interface_group_IFGRP_be_modified_after_it_is_created
      Move any lifs away from the ifgrp (ifgrp cannot be deleted with lifs hosted on it) Delete any vlans on the ifgrp (ifgrp cannot be deleted if it contains vlans) network port ifgrp delete -node <node> -...Move any lifs away from the ifgrp (ifgrp cannot be deleted with lifs hosted on it) Delete any vlans on the ifgrp (ifgrp cannot be deleted if it contains vlans) network port ifgrp delete -node <node> -ifgrp <ifgrp> network port ifgrp create -node <node> -ifgrp <ifgrp> -distr-func <function> -mode <mode> network port ifgrp add-port -node <node> -ifgrp <ifgrp> -port <port> How to migrate from a VLAN tagged interface group (IFGRP) to a new IFGRP with a different distribution function or mode
    • Only LACP ifgrp member ports attached to one switch come up
      https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/Only_LACP_ifgrp_member_ports_attached_to_one_switch_come_up
      Lack of multi-chassis lagg config on the switch causes only a subset of ifgrp member ports to participate in the ifgrp Member ports with different SystemIDs than that in the "lag id" section are conne...Lack of multi-chassis lagg config on the switch causes only a subset of ifgrp member ports to participate in the ifgrp Member ports with different SystemIDs than that in the "lag id" section are connected to switch ports which are not part of the same port channel configuration on the switch
    • Port showing state lag_inactive post switch migration activity
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/Port_showing_state_lag_inactive
      A port is showing as state lag_inactive in an IFGRP after moving it to a new switch. The issue remains on the same filer interface port when moving to a different switch port. The interface port "hung...A port is showing as state lag_inactive in an IFGRP after moving it to a new switch. The issue remains on the same filer interface port when moving to a different switch port. The interface port "hungs-up" when the cable is re-plugged to a new switch. Check the status of the interfaces before and after the switch change. Try to use another switch port on the new switch. Change back to the old switch to see if the error appears again for the same filer port.
    • How to boot ONTAP from an external Key Management (KMIP) server using an ifgrp or vlan
      https://kb.netapp.com/on-prem/ontap/DM/Encryption/Encryption-KBs/How_to_boot_ONTAP_from_an_external_Key_Management_KMIP_server_using_an_ifgrp_or_vlan
      For ONTAP clusters using data-at-rest encryption such as NetApp Aggregate Encryption (NAE), NetApp Volume Encryption (NVE), NetApp Storage Encryption (NSE) or self-encrypting drives (SED), it is neces...For ONTAP clusters using data-at-rest encryption such as NetApp Aggregate Encryption (NAE), NetApp Volume Encryption (NVE), NetApp Storage Encryption (NSE) or self-encrypting drives (SED), it is necessary to contact the key manager during the boot process to unlock the encrypted aggregates, volumes, or drives.
    • network port ifgrp show - command output displays "Port Participation: partial" for one of the ports
      https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/The_output_of_the_command_network_port_ifgrp_show_displays
      Link Aggregation Control Protocol LACP Version: 0x01 TLV Type: Actor Information (0x01) TLV Length: 0x14 Actor System Priority: 32768 Actor System ID: HewlettP_24:e4:83 (d8:94:03:xx:yy:zz) <------ thi...Link Aggregation Control Protocol LACP Version: 0x01 TLV Type: Actor Information (0x01) TLV Length: 0x14 Actor System Priority: 32768 Actor System ID: HewlettP_24:e4:83 (d8:94:03:xx:yy:zz) <------ this is the MAC address of the switch Actor Key: 5 Actor Port Priority: 32768 Actor Port: 41 Actor State: 0x01, LACP Activity .... ...1 = LACP Activity: Active .... ..0. = LACP Timeout: Long Timeout .... .0.. = Aggregation: Individual <------------------------------------------------------------ .... …
    • How to Convert from a VLAN Tagged Singlemode Interface Group (IFGRP) to VLAN Tagged Ports
      https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/How_to_Convert_from_a_VLAN_Tagged_Singlemode_Interface_Group_IFGRP_to_VLAN_Tagged_Ports
      Applies to ONTAP 9.x Description A singlemode (also referred to as single-mode and "single mode") interface group (IFGRP) is not recommended within ONTAP because of the limited functionality it provid...Applies to ONTAP 9.x Description A singlemode (also referred to as single-mode and "single mode") interface group (IFGRP) is not recommended within ONTAP because of the limited functionality it provides and the use of broadcast domains to accomplish the same results as explained in Technical Report 4182. The goal of this KB is to assist with migrating away from a singlemode interface group while allowing continuous access to LIFs.
    • LACP ifgrp Port Participation changes to "partial" after ONTAP reboot
      https://kb.netapp.com/on-prem/ontap/da/NAS/NAS-KBs/LACP_ifgrp_Port_Participation_changes_to_partial_after_ONTAP_reboot
      After ONTAP rebooting, LACP ifgrp shows partial participation for one of the port: NOTE: ONTAP rebooting can be due to any reason such like panic/planned takeover/ONTAP upgrade etc.. Port Participatio...After ONTAP rebooting, LACP ifgrp shows partial participation for one of the port: NOTE: ONTAP rebooting can be due to any reason such like panic/planned takeover/ONTAP upgrade etc.. Port Participation: partial This issue is not seen when we change to static multimode ifgrp: With multimode ports show full participation: ::*> ifgrp show -node node01 -ifgrp a0a Port Participation: full Network Ports: e0c, e0d There is no change in the switch side configuration, Also physically the port is UP.
    • Can't reach management lifs in ifgrp on same network
      https://kb.netapp.com/on-prem/ontap/Ontap_OS/OS-KBs/Can_t_reach_management_lifs_in_ifgrp_on_same_network
      Applies to ONTAP 9+ Switched management network Issue Cannot reach node or cluster management IPs even when on the same network Cannot ping in or out Management lifs are in an ifgrp LACP checks out us...Applies to ONTAP 9+ Switched management network Issue Cannot reach node or cluster management IPs even when on the same network Cannot ping in or out Management lifs are in an ifgrp LACP checks out using :>ifconfig -v The switches are visible using the command ::> network device-discovery show Gateway/default route is set in the same subnet on management network
    • "network port show" reports speed as "-" for Virtual port (ifgrp/vlan)
      https://kb.netapp.com/on-prem/ontap/OHW/OHW-KBs/ifgrp_speed_reported_as_auto_-_after_ONTAP_upgrade
      "network port show" command displays the operation speed of the virtual ports ( VLAN / IFGRP) as "-" a0e Default Default up 1500 auto/- healthy a0e-1003 Default bd1 up 1500 auto/- healthy a0f Default ..."network port show" command displays the operation speed of the virtual ports ( VLAN / IFGRP) as "-" a0e Default Default up 1500 auto/- healthy a0e-1003 Default bd1 up 1500 auto/- healthy a0f Default Default up 1500 auto/- healthy a0f-1003 Default bd2 up 1500 auto/- healthy CLUSTER01::> network port show a0e Default Default up 1500 -/- healthy a0e-1003 Default bd1 up 1500 -/- healthy a0f Default Default up 1500 -/- healthy a0f-1003 Default bd2 up 1500 -/- healthy