https://community.extremenetworks.com/t5/extremeswitching-exos-switch/extreme-and-hp-spanning-tree-config/m-p/43332#M10420 we had to change HP switches spanning tree configuration to rapid-pvst from default mstp. and have enabled stp only for the required vlan. <BR /> <BR /> Extreme switches are configured with pvst-plus. <BR /> <BR /> Of course there is other configuration for stp too. <BR /> <BR /> Thu, 08 Sep 2016 16:04:00 GMT Harkanwaljeet_S 2016-09-08T16:04:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/extreme-and-hp-spanning-tree-config/m-p/43329#M10417 We're a majority Extreme shop but have a few HP switches in the mix. I was wondering if anyone could point me in the right direction for configuring spanning tree on the extreme stuff to play nice with HP ? <BR /> <BR /> By the looks of things the root bridge keeps swapping at the moment. Thu, 08 Sep 2016 02:59:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/extreme-and-hp-spanning-tree-config/m-p/43329#M10417 Tom_Taylor 2016-09-08T02:59:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/extreme-and-hp-spanning-tree-config/m-p/43330#M10418 Can you post your stp config for a uplink port on the XOS side?<BR /> show config stp detail | i 1:49 Thu, 08 Sep 2016 08:21:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/extreme-and-hp-spanning-tree-config/m-p/43330#M10418 Evan_Kuckelheim 2016-09-08T08:21:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/extreme-and-hp-spanning-tree-config/m-p/43331#M10419 #<BR /> <BR /> # Module stp configuration.<BR /> <BR /> #<BR /> <BR /> configure mstp region 020496518117<BR /> <BR /> configure mstp revision 3<BR /> <BR /> configure mstp format 0<BR /> <BR /> create stpd s0<BR /> <BR /> configure stpd s0 delete vlan default ports all<BR /> <BR /> disable stpd s0 auto-bind vlan default<BR /> <BR /> configure stpd s0 mode dot1d<BR /> <BR /> configure stpd s0 forwarddelay 15<BR /> <BR /> configure stpd s0 hellotime 2<BR /> <BR /> configure stpd s0 maxage 20<BR /> <BR /> configure stpd s0 priority 32768<BR /> <BR /> disable stpd s0 rapid-root-failover<BR /> <BR /> configure stpd s0 default-encapsulation emistp<BR /> <BR /> create stpd s1<BR /> <BR /> configure stpd s1 mode dot1w<BR /> <BR /> configure stpd s1 forwarddelay 15<BR /> <BR /> configure stpd s1 hellotime 2<BR /> <BR /> configure stpd s1 maxage 20<BR /> <BR /> configure stpd s1 priority 28672<BR /> <BR /> disable stpd s1 rapid-root-failover<BR /> <BR /> configure stpd s1 default-encapsulation emistp<BR /> <BR /> enable stpd s1 auto-bind vlan Default<BR /> <BR /> configure stpd s1 add vlan Default ports 1:3 dot1d<BR /> <BR /> configure stpd s1 ports mode dot1d 1:1<BR /> <BR /> configure stpd s1 ports cost auto 1:1<BR /> <BR /> configure stpd s1 ports port-priority 128 1:1<BR /> <BR /> configure stpd s1 ports link-type point-to-point 1:1<BR /> <BR /> configure stpd s1 ports edge-safeguard disable 1:1<BR /> <BR /> configure stpd s0 tag 0<BR /> <BR /> disable stpd s0<BR /> <BR /> configure stpd s1 tag 0<BR /> <BR /> enable stpd s1<BR /> <BR /> Thu, 08 Sep 2016 08:21:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/extreme-and-hp-spanning-tree-config/m-p/43331#M10419 Tom_Taylor 2016-09-08T08:21:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/extreme-and-hp-spanning-tree-config/m-p/43332#M10420 we had to change HP switches spanning tree configuration to rapid-pvst from default mstp. and have enabled stp only for the required vlan. <BR /> <BR /> Extreme switches are configured with pvst-plus. <BR /> <BR /> Of course there is other configuration for stp too. <BR /> <BR /> Thu, 08 Sep 2016 16:04:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/extreme-and-hp-spanning-tree-config/m-p/43332#M10420 Harkanwaljeet_S 2016-09-08T16:04:00Z