https://community.extremenetworks.com/t5/extremeswitching-exos-switch/qsfp-and-qsfp-28/m-p/15647#M183 the 870 ports can be 100, 50, 25, 40, 10 gig. if they are configured for 40 or 4*10 then the regular qsfp+ cabling will work. so the part numbers for qsfp+ are correct as well for 40gig qsfp+ optics and twinax cables. Fri, 03 Mar 2017 20:31:00 GMT Hicks__Joe 2017-03-03T20:31:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/qsfp-and-qsfp-28/m-p/15646#M182 Hello, all!<BR /> <BR /> There is new switch X870 with QSFP28 ports.<BR /> Would it be normal working QSFP+ in this ports?<BR /> <BR /> As I saw - wavelenght and formfactor the same.<BR /> Also Juniper have normal compatibility in such case.<BR /> <BR /> Thank you! Fri, 03 Mar 2017 20:23:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/qsfp-and-qsfp-28/m-p/15646#M182 Alexandr_P 2017-03-03T20:23:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/qsfp-and-qsfp-28/m-p/15647#M183 the 870 ports can be 100, 50, 25, 40, 10 gig. if they are configured for 40 or 4*10 then the regular qsfp+ cabling will work. so the part numbers for qsfp+ are correct as well for 40gig qsfp+ optics and twinax cables. Fri, 03 Mar 2017 20:31:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/qsfp-and-qsfp-28/m-p/15647#M183 Hicks__Joe 2017-03-03T20:31:00Z https://community.extremenetworks.com/t5/extremeswitching-exos-switch/qsfp-and-qsfp-28/m-p/15648#M184 Thank you, Joe! Fri, 03 Mar 2017 20:31:00 GMT https://community.extremenetworks.com/t5/extremeswitching-exos-switch/qsfp-and-qsfp-28/m-p/15648#M184 Alexandr_P 2017-03-03T20:31:00Z