https://community.extremenetworks.com/t5/extremeswitching-exos-switch/spanning-tree-on-xos-is-802-1s-and-emistp-the-same-thing/m-p/48142#M12533 Hi Simon,<BR /> I opened a ticket with our community platform provider to check into this for you. Meanwhile, can you please ensure your mail server isn't rejecting email from<B>@getsatisfaction</B>.com?<BR /> Wed, 14 Sep 2016 14:40:00 GMT Drew_C 2016-09-14T14:40:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/spanning-tree-on-xos-is-802-1s-and-emistp-the-same-thing/m-p/48139#M12530 Spanning tree on XOS, is 802.1s and EMISTP the same thing ? Wed, 14 Sep 2016 14:22:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/spanning-tree-on-xos-is-802-1s-and-emistp-the-same-thing/m-p/48139#M12530 simon_bingham 2016-09-14T14:22:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/spanning-tree-on-xos-is-802-1s-and-emistp-the-same-thing/m-p/48140#M12531 Hi , <BR /> <BR /> EMISTP mode is proprietary to Extreme Networks and is an extension of STP that allows a physicalport to belong to multiple STPDs by assigning the port to multiple VLANs.<BR /> BPDUs are sent with an 802.1Q tag having an STPD instanceIdentifier (STPD ID) in the VLAN ID field.<BR /> <BR /> This encapsulation mode supports the following STPD modes of operation: 802.1D and 802.1w.<BR /> Wed, 14 Sep 2016 14:40:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/spanning-tree-on-xos-is-802-1s-and-emistp-the-same-thing/m-p/48140#M12531 Aleixo_Gomes 2016-09-14T14:40:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/spanning-tree-on-xos-is-802-1s-and-emistp-the-same-thing/m-p/48141#M12532 thankyou, appolgies for the delay I don't seem to get emails from the "hub" anymore Wed, 14 Sep 2016 14:40:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/spanning-tree-on-xos-is-802-1s-and-emistp-the-same-thing/m-p/48141#M12532 simon_bingham 2016-09-14T14:40:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/spanning-tree-on-xos-is-802-1s-and-emistp-the-same-thing/m-p/48142#M12533 Hi Simon,<BR /> I opened a ticket with our community platform provider to check into this for you. Meanwhile, can you please ensure your mail server isn't rejecting email from<B>@getsatisfaction</B>.com?<BR /> Wed, 14 Sep 2016 14:40:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/spanning-tree-on-xos-is-802-1s-and-emistp-the-same-thing/m-p/48142#M12533 Drew_C 2016-09-14T14:40:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/spanning-tree-on-xos-is-802-1s-and-emistp-the-same-thing/m-p/48143#M12534 Another update - I'm told that your email address was on the bounce list and has now been removed. You should start receiving emails again <span class="lia-unicode-emoji" title=":slightly_smiling_face:">🙂</span><BR /> Wed, 14 Sep 2016 14:40:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/spanning-tree-on-xos-is-802-1s-and-emistp-the-same-thing/m-p/48143#M12534 Drew_C 2016-09-14T14:40:00Z