topic VLan Tag drops in Network and Storage Protocols https://community.netapp.com/t5/Network-and-Storage-Protocols/VLan-Tag-drops/m-p/56419#M5216 <HTML><HEAD></HEAD><BODY><P>Hi, </P><P></P><P>Experiencing NFS performance issues and observing vlan tag drops on the vlan status.</P><P>Not sure what is this tag drops and what causes it and also could this be a reason for slow NFS issue.</P><P>Looking for comments from a network expert out there. Thanks.</P><P></P><P>Vlan Physical Interface:&nbsp; Vlan1 () --<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Vlan IDs:&nbsp; 109<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; GVRP:&nbsp; enabled</P><P>RECEIVE STATISTICS<BR />Total frames:&nbsp;&nbsp;&nbsp;&nbsp; 3608k | Total bytes:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4934m | Multi/broadcast:&nbsp;&nbsp;&nbsp;&nbsp; 0<BR />Untag drops:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 166m | Vlan tag drops:&nbsp;&nbsp; 1467m&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;,<BR />TRANSMIT STATISTICS<BR />Total frames:&nbsp;&nbsp;&nbsp;&nbsp; 2405k | Total bytes:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 944m</P><P></P><P>Vlan Physical Interface:&nbsp; vlan2 () --<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Vlan IDs:&nbsp; 112<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; GVRP:&nbsp; enabled</P><P>RECEIVE STATISTICS<BR />Total frames:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 634k | Total bytes:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 858m | Multi/broadcast:&nbsp;&nbsp;&nbsp;&nbsp; 0<BR />Untag drops:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 166m | Vlan tag drops:&nbsp;&nbsp; 2285m&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;,<BR />TRANSMIT STATISTICS<BR />Total frames:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 362k | Total bytes:&nbsp;&nbsp;&nbsp;&nbsp; 81608k</P></BODY></HTML> Thu, 05 Jun 2025 06:47:21 GMT baijulal 2025-06-05T06:47:21Z VLan Tag drops https://community.netapp.com/t5/Network-and-Storage-Protocols/VLan-Tag-drops/m-p/56419#M5216 <HTML><HEAD></HEAD><BODY><P>Hi, </P><P></P><P>Experiencing NFS performance issues and observing vlan tag drops on the vlan status.</P><P>Not sure what is this tag drops and what causes it and also could this be a reason for slow NFS issue.</P><P>Looking for comments from a network expert out there. Thanks.</P><P></P><P>Vlan Physical Interface:&nbsp; Vlan1 () --<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Vlan IDs:&nbsp; 109<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; GVRP:&nbsp; enabled</P><P>RECEIVE STATISTICS<BR />Total frames:&nbsp;&nbsp;&nbsp;&nbsp; 3608k | Total bytes:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 4934m | Multi/broadcast:&nbsp;&nbsp;&nbsp;&nbsp; 0<BR />Untag drops:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 166m | Vlan tag drops:&nbsp;&nbsp; 1467m&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;,<BR />TRANSMIT STATISTICS<BR />Total frames:&nbsp;&nbsp;&nbsp;&nbsp; 2405k | Total bytes:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 944m</P><P></P><P>Vlan Physical Interface:&nbsp; vlan2 () --<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Vlan IDs:&nbsp; 112<BR />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; GVRP:&nbsp; enabled</P><P>RECEIVE STATISTICS<BR />Total frames:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 634k | Total bytes:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 858m | Multi/broadcast:&nbsp;&nbsp;&nbsp;&nbsp; 0<BR />Untag drops:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 166m | Vlan tag drops:&nbsp;&nbsp; 2285m&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;,<BR />TRANSMIT STATISTICS<BR />Total frames:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 362k | Total bytes:&nbsp;&nbsp;&nbsp;&nbsp; 81608k</P></BODY></HTML> Thu, 05 Jun 2025 06:47:21 GMT https://community.netapp.com/t5/Network-and-Storage-Protocols/VLan-Tag-drops/m-p/56419#M5216 baijulal 2025-06-05T06:47:21Z VLan Tag drops https://community.netapp.com/t5/Network-and-Storage-Protocols/VLan-Tag-drops/m-p/56424#M5217 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>Not a networking expert here but the Network administration guide has information on the meanings of those fields:</P><P></P><P><A href="http://now.netapp.com/NOW/knowledge/docs/ontap/rel80/pdfs/ontap/nag.pdf" target="_blank">http://now.netapp.com/NOW/knowledge/docs/ontap/rel80/pdfs/ontap/nag.pdf</A></P><P></P><P>"Vlan tag drop -- Number of tagged frames dropped that do not match the VLAN tags</P><P>configured on the interface.</P><P>Vlan untag drop -- Number of untagged frames dropped on an interface that is configured</P><P>to be part of a VLAN"</P><P></P><P>So it <EM>looks </EM>like you have a large number of frames that are tagged for some <STRONG>other </STRONG>VLAN that is not a part of that interface and you have a smaller number of frames being dropped that are simply not tagged (but should be since the interface is meant to be part of a trunk).&nbsp; If I had to <EM>guess </EM>here I would venture that maybe one or more of the switch ports in your etherchannel is not configured properly since both of these things are happening.&nbsp; Perhaps one of your filer interfaces is plugged into a port that is actually part of a different etherchannel?</P><P></P><P>.02</P></BODY></HTML> Wed, 24 Aug 2011 18:22:50 GMT https://community.netapp.com/t5/Network-and-Storage-Protocols/VLan-Tag-drops/m-p/56424#M5217 ajeffrey 2011-08-24T18:22:50Z