ノードまたはスイッチのリブート後、Ifgroupのネットワークポートが停止しています

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環境

FAS8200
NX-OS 7.3（7）N1（1b）を実行するCisco N5K-C5548UP
CNA EP 8324および40GbEブレークアウト光ケーブル用の10GbE光ポートを備えたifgrp。
ONTAP 9

問題

ノードまたはスイッチをリブートすると、複数のポートが停止します。

... Sun Mar 21 10:40:42 +0100 [node_name: intr: net.ifgrp.lacp.link.active:notice]: ifgrp a0m, port e0d has transitioned to the active state. Sun Mar 21 10:40:42 +0100 [node_name: intr: net.ifgrp.lacp.link.active:notice]: ifgrp a0m, port e0c has transitioned to the active state. Sun Mar 21 10:40:46 +0100 [node_name: intr: net.ifgrp.lacp.link.active:notice]: ifgrp a0d, port e1c has transitioned to the active state. Sun Mar 21 10:44:16 +0100 [node_name: intr: net.ifgrp.lacp.link.active:notice]: ifgrp a0c, port e0e has transitioned to the active state. Sun Mar 21 10:44:18 +0100 [node_name: intr: net.ifgrp.lacp.link.active:notice]: ifgrp a0r, port e0h has transitioned to the active state. Sun Mar 21 10:44:18 +0100 [node_name: intr: net.ifgrp.lacp.link.active:notice]: ifgrp a3p, port e0f has transitioned to the active state. Sun Mar 21 10:44:19 +0100 [node_name: intr: net.ifgrp.lacp.link.active:notice]: ifgrp a3p, port e1b has transitioned to the active state. Sun Mar 21 10:46:23 +0100 [node_name: intr: net.ifgrp.lacp.link.inactive:error]: ifgrp a0m, port e0c has transitioned to an inactive state. The interface group is in a degraded state. Sun Mar 21 10:46:23 +0100 [node_name: intr: net.ifgrp.lacp.link.inactive:error]: ifgrp a0m, port e0d has transitioned to an inactive state. The interface group is in a degraded state. Sun Mar 21 10:46:23 +0100 [node_name: intr: net.ifgrp.lacp.link.inactive:error]: ifgrp a0c, port e0e has transitioned to an inactive state. The interface group is in a degraded state. Sun Mar 21 10:46:24 +0100 [node_name: intr: net.ifgrp.lacp.link.inactive:error]: ifgrp a3p, port e0f has transitioned to an inactive state. The interface group is in a degraded state. Sun Mar 21 10:46:24 +0100 [node_name: intr: net.ifgrp.lacp.link.inactive:error]: ifgrp a0d, port e0g has transitioned to an inactive state. The interface group is in a degraded state. Sun Mar 21 10:46:24 +0100 [node_name: intr: net.ifgrp.lacp.link.inactive:error]: ifgrp a0r, port e0h has transitioned to an inactive state. The interface group is in a degraded state. Sun Mar 21 10:46:33 +0100 [node_name: intr: net.ifgrp.lacp.link.active:notice]: ifgrp a0m, port e0c has transitioned to the active state. Sun Mar 21 10:46:34 +0100 [node_name: intr: net.ifgrp.lacp.link.active:notice]: ifgrp a0m, port e0d has transitioned to the active state. Sun Mar 21 10:46:42 +0100 [node_name: intr: net.ifgrp.lacp.link.active:notice]: ifgrp a0d, port e0g has transitioned to the active state. Sun Mar 21 10:46:50 +0100 [node_name: intr: net.ifgrp.lacp.link.active:notice]: ifgrp a0c, port e0e has transitioned to the active state. Sun Mar 21 10:46:52 +0100 [node_name: intr: net.ifgrp.lacp.link.active:notice]: ifgrp a3p, port e0f has transitioned to the active state. ...

Ifconfig -vvv 出力例：

a0c: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 options=6407bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWTSO,RXCSUM_IPV6,TXCSUM_IPV6> ether 02:a0:98:fb:89:71 hwaddr 02:a0:98:fb:89:71 pcp 1 laggproto lacp lagghash l3 lagg options: flags=1<USE_FLOWID> flowid_shift: 16 lagg statistics: active ports: 1 flapping: 0 lag id: [(8000,02-A0-98-FB-89-71,0032,0000,0000), (4E20,00-23-04-EE-BF-2F,040C,0000,0000)] laggport: e1a flags=20000<DEFAULT> state=41<ACTIVITY,DEFAULTED> [(8000,02-A0-98-FB-89-71,8008,8000,0008), (FFFF,00-00-00-00-00-00,0000,FFFF,0000)] input/output LACPDUs: 0 / 0 laggport: e0e flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> state=3d<ACTIVITY,AGGREGATION,SYNC,COLLECTING,DISTRIBUTING> [(8000,02-A0-98-FB-89-71,0032,8000,000D), (4E20,00-23-04-EE-BF-2F,040C,8000,261F)] input/output LACPDUs: 45 / 64 groups: lagg media: Ethernet autoselect status: active

ポートを削除してIfgroupに再度追加すると、リカバリされます。