topic Re: Poor NFS Performance and CISCO Flowcontrol in Network and Storage Protocols https://community.netapp.com/t5/Network-and-Storage-Protocols/Poor-NFS-Performance-and-CISCO-Flowcontrol/m-p/5278#M537 <HTML><HEAD></HEAD><BODY><P>This worked perfectly for us!&nbsp; Thank you so much for posting.</P></BODY></HTML> Sun, 22 Nov 2009 13:55:00 GMT dkemm 2009-11-22T13:55:00Z Poor NFS Performance and CISCO Flowcontrol https://community.netapp.com/t5/Network-and-Storage-Protocols/Poor-NFS-Performance-and-CISCO-Flowcontrol/m-p/5274#M536 <HTML><HEAD></HEAD><BODY><P>Everyone,</P><P></P><P>This is a quick warning to anyone who might be in a similar situation.</P><P></P><P>We had an issue where our Cisco Switches were not configured for Flow Control.</P><P></P><P>Based on the following document</P><P></P><P><A href="https://now.netapp.com/Knowledgebase/solutionarea.asp?id=kb8532" target="_blank">https://now.netapp.com/Knowledgebase/solutionarea.asp?id=kb8532</A></P><P></P><P>we made the necessary changes.</P><P></P><P>However, although we had redundant paths we still lost all communications with the NetApp!</P><P></P><P>Basically if you change the flowcontrol of the switch port to ON, this may be incompatible with the Flowcontrol of the Etherchannel.&nbsp; It is not possible to set the flowcontrol of the Etherchannel in the Web Interface, it is only possible to set this in the CLI.</P><P></P><P>The effect of this incompatibility is that the entire etherchannel is suspended and communications are lost to the Filer.</P><P></P><P>Be aware if you need to make these changes SHUT DOWN ANY SERVICES THAT ARE USING THE FILER FIRST.</P><P></P><P>Regards</P><P></P><P>Mark</P></BODY></HTML> Thu, 05 Jun 2025 07:25:48 GMT https://community.netapp.com/t5/Network-and-Storage-Protocols/Poor-NFS-Performance-and-CISCO-Flowcontrol/m-p/5274#M536 marksourbutts 2025-06-05T07:25:48Z Re: Poor NFS Performance and CISCO Flowcontrol https://community.netapp.com/t5/Network-and-Storage-Protocols/Poor-NFS-Performance-and-CISCO-Flowcontrol/m-p/5278#M537 <HTML><HEAD></HEAD><BODY><P>This worked perfectly for us!&nbsp; Thank you so much for posting.</P></BODY></HTML> Sun, 22 Nov 2009 13:55:00 GMT https://community.netapp.com/t5/Network-and-Storage-Protocols/Poor-NFS-Performance-and-CISCO-Flowcontrol/m-p/5278#M537 dkemm 2009-11-22T13:55:00Z