Dynamic Port Breakout fall in case "autoneg" field exist in config_db.
- How I did it
Added "autoneg" field in sonic-port yang model.
- How to verify it
Add "autoneg" field into config_db like this:
"Ethernet8": {
"index": "2",
"lanes": "8,9,10,11",
"fec": "rs",
"pfc_asym": "off",
"mtu": "9100",
"alias": "Ethernet8",
"admin_status": "up",
"autoneg": "on",
"speed": "100000",
},