01-03-2021 10:31 PM
I am trying to connect my SR650 server (ThinkSystem SR650 (P.No: 7X06CTO1WW ) to my 10g Cisco switch (WS-C3850-24XS-S) via MM Fiber cable, If I insert lenovo provided SFP (P.No 46C3447) at both end (server to switch) then the port gets err-disabled with following error on switch logs
010834: Jan 4 09:43:44: %GBIC_SECURITY_CRYPT-4-VN_DATA_CRC_ERROR: GBIC in port Te1/0/7 has bad crc
010836: Jan 4 09:43:44: %PM-4-ERR_DISABLE: gbic-invalid error detected on Te1/0/7, putting Te1/0/7 in err-disable state
If I insert Cisco 10g module in switch, and cisco provide module or lenovo provide module in server end then the port on switch shows connected, but still on vmware esxi 6.7 , it shows *DISCONNECTED*
What SFP modules should I use for server to switch 10g connectivity?
Following are technical details:
SEVER END:
ThinkSystem SR650 (P.No: 7X06CTO1WW )
10g NIC: Emulex VFA5.2 2x10 GbE SFP+ PCIe Adapter (P.No: AT7S )
10g SFP+ Module: Lenovo SFP 10gbase-sr Fiber Optic Transceiver Module (P.No 46C3447 / )
SWITCH END:
SWITCH MODEL : Cisco 10g SFP+ switch (P.No: WS-C3850-24XS-S )
Cisco Switch 10GBASE Fiber Optic SFP 10G Transceiver Module: Cisco SFP-10G-SR * Part No: 10-2415-03)
Vivanco Optical Fiber Patch Cord: LC-LC MM DUPLEX OM3 10M
Solved! Go to Solution.
01-03-2021 10:50 PM - edited 01-04-2021 12:04 AM
Hello,
tough one, as there is no matrix for which third party SFPs are compatible. Try the global command 'service unsupported-transceiver' on the switch, or switch the transmit and receive ends of the cable when connecting both SFPs.
EDIT: This is an undocumented command, so you have to type it out entirely:
3850(config)#service unsupported-transceiver
In addition, the below command might help as well:
3850(config)#no errdisable detect cause gbic-invalid
01-03-2021 10:50 PM - edited 01-04-2021 12:04 AM
Hello,
tough one, as there is no matrix for which third party SFPs are compatible. Try the global command 'service unsupported-transceiver' on the switch, or switch the transmit and receive ends of the cable when connecting both SFPs.
EDIT: This is an undocumented command, so you have to type it out entirely:
3850(config)#service unsupported-transceiver
In addition, the below command might help as well:
3850(config)#no errdisable detect cause gbic-invalid
01-04-2021 07:48 PM
service unsupported-transceiver no errdisable detect cause gbic-invalid
Using above commands, & with Lenovo provided SFP's inserted at both ends, 10G connectivity worked fine !
Thank you
01-03-2021 11:29 PM
- Check if shut / no shut of the port helps. Check Leo's remark from this thread too :
https://community.cisco.com/t5/optical-networking/using-non-cisco-sfp/td-p/2968759?dtid=osscdc000283
M.
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