аналогично
# mar/10/2023 00:02:23 by RouterOS 6.49.4
# software id =
#
# model = 2011UiAS
# serial number =
/interface ethernet
set [ find default-name=ether1 ] name=ether1-gateway speed=100Mbps
set [ find default-name=ether2 ] speed=100Mbps
set [ find default-name=ether3 ] speed=100Mbps
set [ find default-name=ether4 ] speed=100Mbps
set [ find default-name=ether5 ] speed=100Mbps
set [ find default-name=ether6 ] advertise=\
10M-half,10M-full,100M-half,100M-full,1000M-half,1000M-full name=\
ether6-master-local
set [ find default-name=ether7 ] advertise=\
10M-half,10M-full,100M-half,100M-full,1000M-half,1000M-full name=\
ether7-slave-local
set [ find default-name=ether8 ] advertise=\
10M-half,10M-full,100M-half,100M-full,1000M-half,1000M-full name=\
ether8-slave-local
set [ find default-name=ether9 ] advertise=\
10M-half,10M-full,100M-half,100M-full,1000M-half,1000M-full name=\
ether9-slave-local
set [ find default-name=ether10 ] advertise=\
10M-half,10M-full,100M-half,100M-full,1000M-half,1000M-full name=\
ether10-slave-local
set [ find default-name=sfp1 ] speed=100Mbps
это наверное скорости на которых порт поднимается для автосогласования, на сетёвках подобное видел в настройках драйвера, на итоговую скорость соединения не влияет
пс в настройках порта - закладка ethernet, при снятой галке auto negotiation и указана эта заданная скорость