クラスタ内の1つのノードでのみHTTPS AutoSupport転送タイムアウトが発生する

環境

• ONTAP 9
• HTTPSを使用したAutoSupport配信
• ネットワークファイアウォールの設定
• ネットワークプロキシ設定済み

問題

• 1つ以上のノードのAutoSupport がNetAppに到達できず、ネットワークタイムアウトが通知されます。例：

cluster1::>system node autosupport check show-details

...
Node: node_name

Category:  http- https
      Component:  http-put-destination
       Status: failed
       Detail: HTTP/S PUT connectivity check failed for destination:
           https://support.netapp.com/put/AsupPut/ via proxy -
           proxyuser:********@proxyurl:8080.
           Error: Timeout was reached when connecting to the server
           - 'support.netapp.com'
  Corrective Action: Possible network configuration issue. Ensure that you
           have network connectivity
Node: node_name

Category:  http- https
      Component:  http-post-destination
       Status: failed
       Detail: HTTP/S POST connectivity check failed for destination:
           https://support.netapp.com/asupprod/post/1.0/postAsup
           via proxy -
           proxyuser:********@proxyurl:8080.
           Error: Timeout was reached when connecting to the server
           - 'support.netapp.com'
  Corrective Action: Possible network configuration issue. Ensure that you
           have network connectivity

• プロキシURLへのnotifyd ログ（::> system node run -node node_name -command rdfile /etc/log/mlog/notifyd.log ）でタイムアウトメッセージが検出されました。例：

... (message: STATE: WAITRESOLVE => WAITCONNECT handle 0x80f746008; line 1479 (connection #0))
... (message: connect to proxyurl_IP port 8080 failed: Operation timed out)
... (message: Failed to connect to proxyurl port 8080: Operation timed out)