On ERS 4900 you can manually set the speed but going into the interface and running command “speed <SPEED>”. On VSP you can modify the speed and duplex.
Hi, thanks for article, core switch vsp 7254xsq with firmware 5.1 and access switch is ers 4926gts .
The port type is 10gb fiber ports. On 4926gts autonegotiate enable command not found.