vifmgr.cluscheck.ctdpktloss ：从集群 LIF 执行 ping 操作时，数据包持续丢失

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适用场景

ONTAP 9
CN1610 FastPath 1.2.0.7或1.3.0.2

问题描述

在集群网络中观察到持续数据包丢失、并报告以下事件：

::> event log show -event vifmgr.cluscheck*
    Time         Node   Severity  Event
    ------------------  ------  --------  ---------------------------
    6/18/2021 16:44:03  node_name-01  ALERT   vifmgr.cluscheck.droppedlarge: Partial packet loss when pinging from cluster lif lif2_node_name-01 (node node_name-01) to cluster lif lif2_node_name-04 (node node_name-04).
    6/18/2021 16:31:29  node_name-02  ALERT   vifmgr.cluscheck.ctdpktloss: Continued packet loss when pinging from cluster lif lif1_node_name-02 (node node_name-02) to cluster lif lif2_node_name-04 (node node_name-04).
    ...

SFP、缆线、端口或交换机没有硬件问题。
在某些情况下、集群ping集群检查会显示一个特定端口存在问题。

示例：

::> cluster ping-cluster -node node_name-04 Cluster node_name-04_clus2 169.254.116.245 node_name-04 e0b Basic connectivity fails on 6 path(s) Local 169.254.116.245 to Remote 169.254.234.4 Local 169.254.116.245 to Remote 169.254.109.89 Local 169.254.116.245 to Remote 169.254.169.39 Local 169.254.116.245 to Remote 169.254.44.122 Local 169.254.116.245 to Remote 169.254.84.67 Local 169.254.116.245 to Remote 169.254.59.87 ::> cluster ping-cluster -node node_name-05 Cluster node_name-05_clus1 169.254.84.67 node_name-05 e0a Cluster node_name-05_clus2 169.254.59.87 node_name-05 e0b Basic connectivity fails on 2 path(s) Local 169.254.84.67 to Remote 169.254.116.245 Local 169.254.59.87 to Remote 169.254.116.245 ::> cluster ping-cluster -node node_name-01 Cluster node_name-01_clus1 169.254.234.4 node_name-01 e0a Cluster node_name-01_clus2 169.254.109.89 node_name-01 e0b Basic connectivity fails on 2 path(s) Local 169.254.234.4 to Remote 169.254.116.245 Local 169.254.109.89 to Remote 169.254.116.245 ::> cluster ping-cluster -node node_name-02 Cluster node_name-02_clus1 169.254.169.39 node_name-02 e0a Cluster node_name-02_clus2 169.254.44.122 node_name-02 e0b Basic connectivity fails on 2 path(s) Local 169.254.169.39 to Remote 169.254.116.245 Local 169.254.44.122 to Remote 169.254.116.245