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golgotow
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Posts: 2
Joined: Sun Mar 28, 2021 11:01 am

CRS312-4C to CRS328-24P-4S+ spf+ 10G port flapping

Sun Mar 28, 2021 11:22 am

Hello,

I'm looking for advice on where problem can be in my connection between 2 Mikrotik Devices CRS312-4C and CRS328-24P-4S+ .
Both devices are located in one rack shelf and connected via SFP+ using copper pigtail MikroTik S200200811571 , from the beginning we used 1G connection and there was no problem at all, but now
we experiencing problematic flapping more often, but nothing we found yet about possible reason.

[master@MT-10G-Odroid] > /interface ethernet monitor combo3
;;; to 192.168.14.52
name: combo3
status: link-ok
auto-negotiation: done
rate: 10Gbps
full-duplex: yes
tx-flow-control: no
rx-flow-control: no
advertising: 10M-half,10M-full,100M-half,100M-full,1000M-fu
link-partner-advertising:
combo-state: sfp
sfp-module-present: yes
sfp-rx-loss: no
sfp-tx-fault: no
sfp-type: SFP-or-SFP+
sfp-connector-type: copper-pigtail
sfp-link-length-copper: 3m
sfp-vendor-name: MikroTik
sfp-vendor-part-number: S+DA0003
sfp-vendor-revision: 01
sfp-vendor-serial: S200200811571
eeprom-checksum: good
eeprom: 0000: 03 04 21 00 00 00 00 00 04 00 00 00 67
0010: 00 00 03 00 4d 69 6b 72 6f 54 69 6b 20
0020: 20 20 20 20 00 00 00 00 53 2b 44 41 30
0030: 20 20 20 20 20 20 20 20 30 31 20 20 01
0040: 00 00 00 00 53 32 30 30 32 30 30 38 31
0050: 31 20 20 20 32 30 30 33 31 37 30 30 00
0060: 00 00 00 00 00 00 00 00 00 00 00 00 00
0070: 00 00 00 00 00 00 00 00 00 00 00 00 00
0080: 00 00 00 00 00 00 00 00 00 00 00 00 00
0090: 00 00 00 00 00 00 00 00 00 00 00 00 00
00a0: 00 00 00 00 00 00 00 00 00 00 00 00 00
00b0: 00 00 00 00 00 00 00 00 00 00 00 00 00
00c0: 00 00 00 00 00 00 00 00 00 00 00 00 00
00d0: 00 00 00 00 00 00 00 00 00 00 00 00 00
00e0: 00 00 00 00 00 00 00 00 00 00 00 00 00
00f0: 00 00 00 00 00 00 00 00 00 00 00 00 00

Best Regards
 
brg3466
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Posts: 177
Joined: Sat Aug 01, 2015 7:29 am

Re: CRS312-4C to CRS328-24P-4S+ spf+ 10G port flapping

Tue Jan 17, 2023 2:08 am

I know it is a bit old thread but I recently bought CRS312 ( I have CRS328-24P for years) and when I connected CRS312 to CRS328 with 1m-long Mikrotik 10G DAC, the sfp+ port flapping randomly, sometimes 3-4 times per hour, sometimes every 5 minutes. Tried different RouterOS version, and different DAC, but problem remains the same.

Do you have any solution in the end ?

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