Restrictions for Configuring Auto Media Sense
When the media-type is changed from RJ45 to SFP or vice versa with 100% line rate, the port goes DOWN. The workaround is to stop the traffic, and to perform shut/no shut operation on the port.
By default, the auto negotiation is always enabled when the media-type is selected as auto-select.
For ports 4 to 11, the same port cannot be used as RJ45 or SFP at the same time.