CRS312-4C+8XG-RM has separate QCA9531 CPU and Marvell-98DX8212 switch chip.
Here is the block diagram:
https://i.mt.lv/cdn/rb_files/CRS312-4Cp ... 104503.png
Are there any errors in interface stats when using v2.8 or v2.9?Upgrading from 2.8 to 2.9 on a CSS106-5G-1S causes severe traffic drop between 1G ports and 100Mbit ports. It's random from 0 to 40Mbps.
Reverting back to 2.8 traffic increased back to steady 100Mbps.
*) CRS328-24P-4S+ upgrade from the SwOS does not work in this version
Upgrade using SwOS firmware file "swos-css328p-2.9.bin" from https://mikrotik.com/download should be used instead.
/interface ethernet switch egress-vlan-tag add tagged-ports=switch1-cpu vlan-id=10