Cisco – How to connect 3rd party SFP to the cisco switch

ciscosfpswitch

I am trying to connect "sfp-1ge-fe-e-t" sfp module to CISCO Catalyst C3560G-48TS switch.

When i pluged module to the port and following error was shown:

%GBIC_SECURITY_CRYPT-4-VN_DATA_CRC_ERROR: GBIC in port Gi0/49 has bad crc

Then I searched solution for the problem, so I found several solution that describes same steps.

like that:
how to connect 3rd party sfp to the cisco switches

I tried following commands:

# service unsupported-transceiver

# no errdisable detect cause sfp-config-mismatch
# no errdisable detect cause gbic-invalid

But it didn't help actually. I couldn't turn on GBIC ports. It always shows "status down, protocol down".

Even show idprom interface gigabitEthernet 0/49 command doesn't show anything.

I have been experiencing with the proplem for two days.

Which steps should i follow? what is the real solution?
Thanks in advance

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Best Answer

I'm afraid the real solution is to use either Cisco transceivers or third-party transceivers - from reputable vendors- that are specifically "tagged" to be used on Cisco switches.

Using random transceivers will only cause troubles and the time you will loose will vastly overcome the economy made on the hardware.

Edit:

As you can see in this datasheet the C3560G-48TS has SFP (1Gb) ports, not SFP+ (10Gb). So you cannot use a SFP+ transceiver like sfp-10g-sr

You can use this compatibility matrix to check which transceiver are compatible with your switch.