Duplex between two communicating devices specifies whether communication will be one way at a time (half-duplex) or in both directions simultaneously (full-duplex). When auto-negotiation is enabled, auto-negotiation determines port duplex.
Use the set port duplex command to specify whether the specified ports will operate at half or full duplex when auto-negotiation is not enabled.
The following example sets the port duplex on port ge.1.1 to full:
System(rw)->set port duplex ge.1.1 full System(rw)->show port duplex ge.1.1
default duplex mode is full on port ge.1.1.
System(rw)->