Skip to main content
NetApp Knowledge Base

Network traffic sent out of an unexpected interface

  1. Last updated
  2. Save as PDF
Views:
418
Visibility:
Public
Votes:
0
Category:
ontap-9
Specialty:
nas
Last Updated:

Applies to

  • ONTAP 9
  • Routing

Issue

  • NFS Clients  get RPC timeout when attempting mount
    • Packet captures show no SYN ACK replies for TCP session on NFS LIF
    • Packet captures show SYN ACK replies egressing out a different or management LIF
  • TCP/UDP traffic ingresses via one logical interface (LIF) and egresses out a different LIF
  • This asymmetric routing results in different network paths traversed by traffic travelling to/from the client
  • This is often seen when the SVM has a LIF in the same network as the client, such as in the below image:

clipboard_e783f7948b4280730aa196b38e92ec6a1.png

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.