When I configured ROCE for CRS520, I found that 100GBE ports 4~7 do not support hardware offload.
Is this due to the limitation of the switch chip or a bug in the ROS software?
Will this be improved in future firmware upgrades?
Thank you!
This device does not work with L3 HW offloading, unrelated to the ports. Either MikroTik is unaware of this or does not consider it necessary to mention.
5 Due to hardware limitations, PFC settings cannot be configured on certain switch ports. … For the CRS520-4XS-16XQ model, PFC is not supported on ports qsfp28-4-1 to qsfp28-7-4.
According to the documentation, it does support it.
CRS520 support L3 HW offloading,I have already set it successfully.
it is only QSFP28 port4~7 shows:
:“PFC not supported on this port”
thanks alot~ got it~
5 Due to hardware limitations, PFC settings cannot be configured on certain switch ports. For CRS354 series models, PFC is not supported on ports ether37 to ether48. For the CRS520-4XS-16XQ model, PFC is not supported on ports qsfp28-4-1 to qsfp28-7-4.
Good news, guys! We contacted our switch chip vendor, who confirmed that the PFC hardware limitation had been fixed in newer switch chip models, including the one used in CRS520-4XS-16XQ. PFC support will be unlocked for all ports in the next RouterOS version.
Hi, is the limitation has been fixed? I’m asking this because the document still says: For the CRS520-4XS-16XQ model, PFC is not supported on ports
The limitation has been fixed since v7.17, removed the info from docs. Thanks.