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jesus3097
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sfp-sfpplus1 FCS error on link - SFP+ ERROR FCS

Sat Apr 10, 2021 12:58 am

I am having FCS error problems on my Mikrotik SFP+ optical port, I have tested with my business service provider and everything is fine.
But on my Mikrotik side it is throwing FCS type errors in log, I have changed the SFP+ 3 times to rule out that it is not an incompatibility problem.
Please help, when these errors occur they cause me to lose packets on my internet link.


I tried with a 10gtek module and now I tried with a Cisco-Prolabs module... when the FCS errors occur the link drops and I lose connectivity with my provider, on the other end of my internet provider there is also a Cisco Prolabs SFP+ module SFPPLR31-10-CJ.

My mikrotik is CCR1009-8G-1G-1S-1S+

SFP+ 10G

I already tried to turn off the autonegotiation, force it to 10G only but the problem persists.

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anav
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Re: sfp-sfpplus1 FCS error on link - SFP+ ERROR FCS

Sat Apr 10, 2021 3:00 am

I had no luck with my sfp+ port using an SJR10+ ethernet cage attached to my CCR1009 connecting to FIbre OP modem.
The modem has fibre in and ethernet out.

I think the CCR1009 SFP+ is broken. :-(
 
liviu2004
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Re: sfp-sfpplus1 FCS error on link - SFP+ ERROR FCS

Wed Mar 08, 2023 5:33 pm

Same here, css610-8p-2S+in with srj10+ brand new out the box, tested 3 cables brand new against a NAS 10gbe port, buffalo Terastation with windows storage servers. Tons of tx fcs errors.
Dissappointment is an understatement.

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