prom Port Duplex Mode

1.3.6.1.4.1.2167.3.6.3.1.1.31

A point-to-point Ethernet port may be configured to support half or full duplex communications. A full-duplex(2) port transmits and receives data concurrently, effectively doubling the data rate of the port. Half-duplex(1) ports transmit or receive data, but not at the same time. Half-duplex ports use CSMA/CD as the access method to the network. Ports that are connected to shared segments (i.e. connected to a repeater), should always be configured to be in half-duplex mode. This object indicates the desired duplexity of this port. If auto-negotiation is turned on for this port, then this value is ignored.