CodingBox Q&A Ask question
Log in Sign up

Questions tagged “crs309”

2 questions
Newest Active Most voted Unanswered
15 30 50 per page
1vote
1 answer
54views

10Gtek ASF-GE-T copper SFPs stop linking on a CRS309 after RouterOS 7.14 because of a wrongly programmed EEPROM

After upgrading a CRS309-1G-8S+IN from RouterOS 6.48.6 to 7.14.1 (and 7.15beta8), ports 5 and 7 with 10Gtek ASF-GE-T (FTRJ8519P1BNL-PT) copper SFPs showed sfp-rx-loss: yes and no-link when auto-negotiation was enabled; disabling auto-negotiation and forcing 1G full duplex restored the link…

10gtek asf-ge-t copper-sfp crs309 MikroTik
Spain coreguru ES asked
3votes
1 answer
19views

Passive XS+DA0001 DAC between an RB3011 SFP port and a CRS309 SFP+ port only links after limiting advertised speeds

The poster wanted to use a MikroTik XS+DA0001 passive DAC between the 1G SFP port of an RB3011 and an SFP+ port of a CRS309 and asked whether a passive cable can bridge different SFP generations. The RB3011 SFP cage is 1G only while the CRS309 cage is SFP+ (10G), and a passive DAC has no active…

crs309 MikroTik passive-dac rb3011 xs+da0001
Russia netadmin RU asked