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ピア システム ID の不一致により、LACP ポートが部分的なステータスでダウン

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ontap-9
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環境

  • ONTAP 9
  • Link Aggregation Control Protocol(LACP)
  • インターフェイス グループ(ifgrps)、別名 Link Aggregation Group(LAG)

問題

  • LACPを使用するifgrpで、1つ以上のインターフェイスがアクティブでないか、またはdownと表示されます:

cluster::> ifgrp show
node    ifgrp    ports       down-ports
-------- ---------- -----       ----------
node1   a0a     e0a,e0b,e0c,e0d e0c,e0d

  • 物理ポートのステータスは「up」です:

cluster::> net port show -node node1 -port e0c,e0d
Node: node1
                                                     Ignore
                          Speed(Mbps) Health   Health
Port    IPspace    Broadcast Domain Link MTU  Admin/Oper  Status   Status
--------- ------------ ---------------- ---- ---- ----------- -------- ------
e0c     Default    Default      up  1500  auto/1000  healthy  false
e0d     Default    Default      up 1500  auto/1000  healthy  false
2 entries were displayed.

  • ifconfig -v は、同じifgrp内の異なるポートにある複数のシステムIDを示します

例:

  • LACPピアは2つの異なる system IDs  を送信しています(AA-BB-CC-DD-EE-FF vs FF-EE-DD-CC-BB-AA)。
  • ifgrpのインターフェイスを1つだけ active 状態に残します。

::> system node run -node <node> -command ifconfig -v

a0a: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000
options=6407bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,LRO,VLAN_HWTSO>
ether 02:a0:98:11:22:33
media: Ethernet autoselect
status: active
groups: lagg
laggproto lacp lagghash l3
lagg options:
flags=11<USE_FLOWID,LACP_STRICT>
flowid_shift: 16
lagg statistics:
active ports: 1 <-- Only one out of the two configured port is currently active in the ifgrp
flapping: 0
lag id: [(8000,02-A0-98-11-22-33,0032,0000,0000),
(8000,AA-BB-CC-DD-EE-FF,0037,0000,0000)]
laggport: e0d flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> state=3d<ACTIVITY,AGGREGATION,SYNC,COLLECTING,DISTRIBUTING>
[(8000,02-A0-98-11-22-33,0032,8000,0006),     <-- ONTAP
(8000,AA-BB-CC-DD-EE-FF,0037,8000,00B9)]      <-- Peer
input/output LACPDUs: 460 / 14099
laggport: e0c flags=18<COLLECTING,DISTRIBUTING> state=3d<ACTIVITY,AGGREGATION,SYNC,COLLECTING,DISTRIBUTING>
[(8000,02-A0-98-11-22-33,0032,8000,0007),     <-- ONTAP
(8000,FF-EE-DD-CC-BB-AA,0037,8000,043A)]      <-- Peer
input/output LACPDUs: 460 / 14099

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