Skip to main content
NetApp Knowledge Base

Continued packet loss when pinging from cluster lif to cluster lif

  1. Last updated
  2. Save as PDF
Views:
1,233
Visibility:
Public
Votes:
0
Category:
fas-systems
Specialty:
nas
Last Updated:

Applies to

  • ONTAP 9
  • Cisco Nexus cluster switches

Issue

  • Ping packets are being dropped when pinging from cluster lif of one node to to cluster lif of another node and the following alerts are seen in event logs:

[Node1: vifmgr: vifmgr.cluscheck.ctdpktloss:alert]: Continued packet loss when pinging from cluster lif Node1_clus2 (node Node1) to cluster lif Node2_clus2 (node Node2)

[Node3: vifmgr: vifmgr.cluscheck.ctdpktloss:alert]: Continued packet loss when pinging from cluster lif Node3_clus1 (node Node3) to cluster lif Node4_clus2 (node Node4)

  • The cluster network is degraded due to this and the below event is reported:

[Node1: vifmgr: callhome.clus.net.degraded:alert]: Call home for CLUSTER NETWORK DEGRADED: Large MTU Packet Loss - Ping failures detected between Node1_clus1 ( 169.254.XXX.XXX ) on Node1 and Node2_clus1 ( 169.254.XXX.XX ) on Node2

  • All the cluster ports on the nodes are configured with 9000 MTU:

Cluster::> network port show

Node: Node1
                                                  Speed(Mbps) Health
Port      IPspace      Broadcast Domain Link MTU  Admin/Oper  Status
--------- ------------ ---------------- ---- ---- ----------- --------
e0a       Cluster      Cluster          up   9000  auto/10000 healthy
e0b       Cluster      Cluster          up   9000  auto/10000 healthy

Node: node2
                                                  Speed(Mbps) Health
Port      IPspace      Broadcast Domain Link MTU  Admin/Oper  Status
--------- ------------ ---------------- ---- ---- ----------- --------
e0a       Cluster      Cluster          up   9000  auto/10000 healthy
e0b       Cluster      Cluster          up   9000  auto/10000 healthy

 

Sign in to view the entire content of this KB article.

New to NetApp?

Learn more about our award-winning Support

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.