https://community.extremenetworks.com/t5/extremeswitching-exos-switch/extreme-x450-stacking/m-p/80661#M19985 Hello,<BR /><BR />Can i stack X450-G2-48p-G4 (with no licences) + X450-G2-24p-10G4 (2x10Gbit SFP licence) via QSFP?<BR /><BR />If yes, do i need some kind of licence for QSFP also? and does the QSFP runs in 10Gbit speeds? (if i would buy 10Gbit QSFP cable)<BR />I would use WAN UPLINK from X450-G2-24p-10G4 one of the licenced SFPs.<BR />Both switch has SummitStack ports in the backside. Tue, 31 May 2022 09:37:17 GMT JaxN 2022-05-31T09:37:17Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/extreme-x450-stacking/m-p/80661#M19985 Hello,<BR /><BR />Can i stack X450-G2-48p-G4 (with no licences) + X450-G2-24p-10G4 (2x10Gbit SFP licence) via QSFP?<BR /><BR />If yes, do i need some kind of licence for QSFP also? and does the QSFP runs in 10Gbit speeds? (if i would buy 10Gbit QSFP cable)<BR />I would use WAN UPLINK from X450-G2-24p-10G4 one of the licenced SFPs.<BR />Both switch has SummitStack ports in the backside. Tue, 31 May 2022 09:37:17 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/extreme-x450-stacking/m-p/80661#M19985 JaxN 2022-05-31T09:37:17Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/extreme-x450-stacking/m-p/80662#M19986 <P>Hi Jax,<BR /><BR /></P> <P>Below would be the relevant information regarding stacking on those models.&nbsp; The x450-G2 also has dedicated stacking ports(V84) on the back:<BR /><BR /><A href="https://documentation.extremenetworks.com/extremeswitching/GUID-35B4ACBF-209B-4AE6-8EF6-54158AE62D4C.shtml" target="_blank" rel="noopener">ExtremeSwitching Hardware Installation Guide (extremenetworks.com)</A><BR /><BR />Thanks,<BR />Chris Thompson</P> Tue, 31 May 2022 14:55:11 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/extreme-x450-stacking/m-p/80662#M19986 CThompsonEXOS 2022-05-31T14:55:11Z