Hello,    @balaji.bandi Unfortunately, the command  service unsupported-transceiver does not exist.    I've read in some forums that t he command "service unsupported-transceiver"  is no longer available.    I guess I'll have to buy another sfp cable then...  Any recommendations on what cable will absolutely and definitely work?  Best Regards, Panagiotis Botos ... View more

Can I get a reply please? Any guidance will be highly appreciated.       ... View more

Hello,    I have removed the previous cable connections and made new ones using only sfp cable.  So I have connected  Nexus-1 (port 10) -> Catalyst-1 ( SFP Port - 25 ) . Still no link light.    On the Nexus-1 switch I do not see something wrong in the logs:    #show logging 2019 Mar 13 13:46:57 Nexus-1 %ETHPORT-5-IF_HARDWARE: Interface Ethernet1/10, hardware type changed to No-Transceiver 2019 Mar 13 13:46:57 Nexus-1 %ETHPORT-5-IF_DOWN_NONE: Interface Ethernet1/10 is down (Transceiver Absent) 2019 Mar 13 13:52:30 Nexus-1 %ETHPORT-5-IF_HARDWARE: Interface Ethernet1/10, hardware type changed to Transceiver-Present   #show interface tranceiver detail : Ethernet1/10 transceiver is present type is SFP-H10GB-CU3M name is CISCO-TYCO part number is 1-2053783-2 revision is R serial number is TED1725B5RZ nominal bitrate is 10300 MBit/sec Link length supported for copper is 3 m cisco id is 3 cisco extended id number is 4   On the Catalyst switch though I see some error:    It seems that for some reason the Catalyst does not like the cable ?  Please help me resolve this issue.  Best Regards, Panagiotis Botos ... View more

So, I tried using an sfp to ethernet converter and connected  port 10 on catalyst ( ethernet port ) , to port 10 on Nexus (sfp port with the module installed).    This is the output I get:    Eth1/10 -- sfpInvali 1 full 10G 1000base-T Nexus-1# show interface ethernet 1/10 transceiver details Ethernet1/10 transceiver is present type is 1000base-T name is FiberStore part number is SFP-GB-GE-T revision is B serial number is G1804168621 nominal bitrate is 1300 MBit/sec Link length supported for copper is 100 m cisco id is 3 cisco extended id number is 4 DOM is not supported   Nexus-1 %ETHPORT-5-IF_HARDWARE: Interface Ethernet1/10, hardware type changed to Transceiver-Present Nexus-1 %ETHPORT-5-IF_DOWN_NONE: Interface Ethernet1/10 is down (None)   No configuration has been done on port 10 whatsoever (only the no shut command).  ... View more