Skip to main content
NetApp Knowledge Base

Intermittent fluctuations in ifgrp ports due to ARP storm

  1. Last updated
    Apr 2, 2024
  2. Save as PDF
Views:
342
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
nas
Last Updated:
4/2/2024, 11:52:15 AM

Applies to

ONTAP 9

Issue

  • Due to ARP storm received on physical ports, ports in ifgrp was flapping :Sat Feb 10 23:19:21 -0600 [Node-01: kernel: netinet.ethr.arpstorm:error]: The node detected a possible ARP storm on port a0a-192. Detected rate: 5001 packets per second.
    Sun Feb 11 04:19:36 -0600 [Node-01: kernel: netinet.ethr.arpstorm:error]: The node detected a possible ARP storm on port a0a-192. Detected rate: 740946 packets per second.
  • Logs indicate lacp state of one among 2 ports transitioned to inactive and active state intermittently until ARP storm is stopped.
    Sat Feb 10 23:39:12 -0600 [Node-01: intr: net.ifgrp.lacp.link.inactive:error]: ifgrp a0a, port e0g has transitioned to an inactive state. The interface group is in a degraded state.
    Sat Feb 10 23:39:17 -0600 [Node-01: intr: net.ifgrp.lacp.link.active:notice]: ifgrp a0a, port e0g has transitioned to the active state.
    Sat Feb 10 23:47:36 -0600 [Node-02: intr: net.ifgrp.lacp.link.inactive:error]: ifgrp a0a, port e0e has transitioned to an inactive state. The interface group is in a degraded state.
    Sat Feb 10 23:47:41 -0600 [Node-02: intr: net.ifgrp.lacp.link.active:notice]: ifgrp a0a, port e0e has transitioned to the active state.
  • Ports went int degraded state resulting in link down and LIF migrated to other node.

 

 

 

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.