https://community.extremenetworks.com/t5/extremeswitching-exos-switch/ptpv1-packets-are-not-propagating-across-the-switches/m-p/121972#M23220 <P>I found this information: “If AVB is also in use on this switch, with Dante traffic passing over the same links, see:&nbsp;PTPv1 packets are dropped when gPTP is enabled on a port” Is this right?</P><P><A href="https://extreme-networks.my.site.com/ExtrArticleDetail?an=000063026&amp;q=dante" target="_blank">https://extreme-networks.my.site.com/ExtrArticleDetail?an=000063026&amp;q=dante</A></P><P>&nbsp;</P><P>I have several 5320 switches for an AV setup. I have two VLANs set up. First for AVB. Second for Dante.</P><UL><LI>gPTP is enabled</LI><LI>IGMP is enabled</LI><LI>snooping is enabled</LI><LI>Querier is set to the 48-port switch</LI></UL><P>PTP appears to be working on the 24-port switch, as it selects a device as the master clock. The issue is that the DSP connected to the 48-port switch does not participate in the process and elects itself as the master clock.</P><P>&nbsp;</P><P>Anyone able to assist with this setup?</P> Fri, 19 Jun 2026 02:23:26 GMT Hewshott_IT 2026-06-19T02:23:26Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/ptpv1-packets-are-not-propagating-across-the-switches/m-p/121972#M23220 <P>I found this information: “If AVB is also in use on this switch, with Dante traffic passing over the same links, see:&nbsp;PTPv1 packets are dropped when gPTP is enabled on a port” Is this right?</P><P><A href="https://extreme-networks.my.site.com/ExtrArticleDetail?an=000063026&amp;q=dante" target="_blank">https://extreme-networks.my.site.com/ExtrArticleDetail?an=000063026&amp;q=dante</A></P><P>&nbsp;</P><P>I have several 5320 switches for an AV setup. I have two VLANs set up. First for AVB. Second for Dante.</P><UL><LI>gPTP is enabled</LI><LI>IGMP is enabled</LI><LI>snooping is enabled</LI><LI>Querier is set to the 48-port switch</LI></UL><P>PTP appears to be working on the 24-port switch, as it selects a device as the master clock. The issue is that the DSP connected to the 48-port switch does not participate in the process and elects itself as the master clock.</P><P>&nbsp;</P><P>Anyone able to assist with this setup?</P> Fri, 19 Jun 2026 02:23:26 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/ptpv1-packets-are-not-propagating-across-the-switches/m-p/121972#M23220 Hewshott_IT 2026-06-19T02:23:26Z