https://community.extremenetworks.com/t5/end-of-service-products/pheonix-3012e-sfp-communication-with-c5k175-24/m-p/83676#M780 Hi,<BR /> <BR /> Wouldn't you need 1gbit connection on both ends? If I remember correctly, gbic on C5 side will not work as 100mbit speed.<BR /> <BR /> Regards<BR /> <BR /> Rahman Mon, 30 Sep 2019 22:51:27 GMT Rahman_Duran 2019-09-30T22:51:27Z https://community.extremenetworks.com/t5/end-of-service-products/pheonix-3012e-sfp-communication-with-c5k175-24/m-p/83675#M779 Hi,<BR /> <BR /> We are using C5K175-24 as our root switch in our main building.<BR /> We need to establish FO communication between C5 and Pheonix switch 3012E.<BR /> <BR /> MGBIC Installed in C5 Switch- 1Gbps LX 1310nm.<BR /> MGBIC installed in 3012E - 100mbps SFP FX SM 1310nm<BR /> <BR /> Will it be compatible, Couldn't establish communication.<BR /> C5 switch is in its default conficuration.<BR /> Please provide some suggestions. Sat, 28 Sep 2019 22:36:57 GMT https://community.extremenetworks.com/t5/end-of-service-products/pheonix-3012e-sfp-communication-with-c5k175-24/m-p/83675#M779 kri2020 2019-09-28T22:36:57Z https://community.extremenetworks.com/t5/end-of-service-products/pheonix-3012e-sfp-communication-with-c5k175-24/m-p/83676#M780 Hi,<BR /> <BR /> Wouldn't you need 1gbit connection on both ends? If I remember correctly, gbic on C5 side will not work as 100mbit speed.<BR /> <BR /> Regards<BR /> <BR /> Rahman Mon, 30 Sep 2019 22:51:27 GMT https://community.extremenetworks.com/t5/end-of-service-products/pheonix-3012e-sfp-communication-with-c5k175-24/m-p/83676#M780 Rahman_Duran 2019-09-30T22:51:27Z