SFP modules check fake or not?

[Oleg Volkov]

Dear Sirs!

My friend, buy few SFP GLC-T modules as original Cisco.

But I never see serial numbers like this:

00000MTC1719055H

00000MTC171903XL

00000MTC171907RX

00000MTC171909B6

N5596-S5# sh int ethernet 1/45 transceiver sprom

Ethernet1/45

    transceiver is present

    type is SFP-1000BASE-T

    name is CISCO-METHODE

    part number is SP7041_Rev_F

    revision is F

    serial number is 00000MTC1719055H

    nominal bitrate is 1300 MBit/sec

    Link length supported for copper is 100 m

    cisco id is --

    cisco extended id number is 4

  Identifier                      : 0x03 (SFP)

  Ext_Identifier                  : 0x04

  Connector                       : 0x00 (Unknown)

  Infiniband Compliance Code      : 0x00 (None)

  Sonet Compliance Code           : 0x0000

  Gigabit Ethernet Compliance Code: 0x08 (1000Base-T)

  Encoding                        : 0x01 (8B/10B)

  BR_Nominal                      : 0x0d  [1300]

  Reserved1                       : 0x00

  Length_9u_1                     : 0x00  0 KM

  Length_9u_2                     : 0x00  0 Meters

  Length_50u                      : 0x00  0 Meters

  Length_60u                      : 0x00  0 Meters

  Length_Copper                   : 0x64  100 Meters

  Reserved2                       : 0x00

  Vendor Name                     : CISCO-METHODE

  Reserved3                       : 0x01

  Vendor OUI                      : 0x000000

  Vendor Part No                  : SP7041_Rev_F

  Vendor Revision                 : F

  Reserved4                       : 0x410cc1

  Check Code ID                   : 0x5a (OK)

  Options                         : 0x0010

  BR Max                          : 0x00

  BR Min                          : 0x00

  Vendor Serial No                : 00000MTC1719055H

  Date Code                       : 13051801

  Diagnostic Monitoring Type      : 0x00

  enchancedOptions                : 0x00

  SFF8472Compliance               : 0x00

  Check Code EXT                  : 0x2b (OK)

  Vendor Specific ID Data         : 0x00000e51bd4a5e876029cc2b092dba4d

                                  : 0x0ff1fd000000000000000000ebafbb73

What can I check this modules? this original Cisco or fake?

Dear Sirs who have Nexus 5xxx switch and inserted original GLC-T modules - please, send me "transceiver sprom" out

Thanks!

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[Richard Primm · Accepted solution]

hello Oleg,

I checked the serial numbers you listed and they are real Cisco GLC-T and fully covered.  Nothing to worry about.

-Luke

[augusto]

Hi, how can I check if it is Cisco Original, can I check my self ?

have this 4 items to check 

FNS130301D3
FNS12200XVX
FNS12210CF2
FNS13230XLN

[Elrick Landon]

Hi,

I plan to buy two SFP module for my switch device WS-C2960X-24TS-LL.

A lots of model are compliant with my device, but it's impossible to know différences... so crazy !!

I think that GLC-SX-MMD reference seems the best ... ?!

A lots of SFP Module are available on EBay or another website...

How can i know if this SFP Module are genuine or Counterfeit/fake module ?

Does it can be possible to enter the serial number somewhere to know it myself ?

Does any information present on the stick can be usefull to challenge it ?

Best Regards.

[edsge teenstra]

Hi , You can check serial numbers in the Cisco trade tool , but a Cisco login is required. The tool display part-ID (even bundle part-ID country of manufacturer.

https://gcta.cloudapps.cisco.com/FinAdm/GCTA/servlet/ControllerServlet?action=coInfo