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babelmonk
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Joined: Sun Nov 22, 2020 7:02 pm

SFP 1 Gbps devices in SFP+ cage (CCR2004-1G-12S+2XS) not working in 7.1x

Thu Nov 25, 2021 10:10 am

I had these SFP devices running fine prior to a 7.1rc6 upgrade, but now they never get link (known good switch at remote end)
/interface/ethernet> monitor sfp-sfpplus12
                               name: sfp-sfpplus12
                             status: no-link
                   auto-negotiation: failed
                        advertising: 
           link-partner-advertising: 
                 sfp-module-present: yes
                        sfp-rx-loss: no
                       sfp-tx-fault: no
                           sfp-type: SFP-or-SFP+
  sfp-link-length-copper-active-om4: 100m
                    sfp-vendor-name: OEM
             sfp-vendor-part-number: SFP-GE-T
                  sfp-vendor-serial: CSMTGTKC00310
             sfp-manufacturing-date: 20-12-14
                    eeprom-checksum: good
                             eeprom: 0000: 03 04 00 00 00 00 08 00  00 00 00 01 0d 00 00 00  ........ ........
                                     0010: 00 00 64 00 4f 45 4d 20  20 20 20 20 20 20 20 20  ..d.OEM          
                                     0020: 20 20 20 20 00 00 00 00  53 46 50 2d 47 45 2d 54      .... SFP-GE-T
                                     0030: 20 20 20 20 20 20 20 20  20 20 20 20 00 00 c1 66               ...f
                                     0040: 00 1a 00 00 43 53 4d 54  47 54 4b 43 30 30 33 31  ....CSMT GTKC0031
                                     0050: 30 20 20 20 32 30 31 32  31 34 20 20 00 00 00 38  0   2012 14  ...8
                                     0060: 00 00 11 50 69 fd 48 18  70 33 2c 99 4e c4 3f a2  ...Pi.H. p3,.N.?.
                                     0070: 5d f1 00 00 00 00 00 00  00 00 00 00 d3 7d 8a 9e  ]....... .....}..
                                     0080: 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  ........ ........
                                     *
They are these devices: https://www.amazon.co.uk/gp/product/B07 ... =UTF8&th=1 - has anyone seen similar challenges with a 7.1 upgrade?

Are there known good SFP (1 Gbps) devices that will work in the CCR2004's 10 Gbps SFP+ ports?
 
ccl13
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Re: SFP 1 Gbps devices in SFP+ cage (CCR2004-1G-12S+2XS) not working in 7.1x

Thu Nov 25, 2021 11:26 am

I kind of suspect what you have is same issue as I am having:
viewtopic.php?t=180647
 
elbob2002
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Re: SFP 1 Gbps devices in SFP+ cage (CCR2004-1G-12S+2XS) not working in 7.1x

Thu Nov 25, 2021 11:39 am

Turn off Auto Negotiation and set the speed to 1G

I've had to do this on a CRS328 running 6.4x and on an RB5009 running 7.1RC6
 
babelmonk
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Re: SFP 1 Gbps devices in SFP+ cage (CCR2004-1G-12S+2XS) not working in 7.1x

Thu Nov 25, 2021 11:56 am

Bingo! Works for me. Thanks!
 
mhugo
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Re: SFP 1 Gbps devices in SFP+ cage (CCR2004-1G-12S+2XS) not working in 7.1x

Mon Nov 29, 2021 2:22 pm

We have seen this issue with some sfp vendors but never with the ones we use mostly from fs.com.

The workaround for the others as reported is to disable autoneg.

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