Skip to main content
NetApp Knowledge Base

CONTAP-809153: RFE: Evaluate ONTAP improvements to handle fast-forwarding network switches better during LIF migration

  1. Last updated
  2. Save as PDF
Views:
13
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
CORE
Last Updated:

Issue

1. Evaluate the scope of improvements on the ONTAP end to handle clients behind low-latency/fast-forwarding network switches better during LIF migration - e.g., shrinking the unbind-to-IP-withdrawal window, or installing an ephemeral firewall rule to blackhole inbound SYNs specifically during the LIF migration transition (leaving other traffic, including the final RST, unaffected).
2. Evaluate whether net.inet.tcp.blackhole=1 is a reasonable candidate for a new ONTAP default. Otherwise, provide a persistent mechanism (via command or bootarg support) for net.inet.tcp.blackhole, so this setting survives reboot without requiring manual re-application per IPspace.
 
 

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.