ctEtherDuplexAdminStatus
1.3.6.1.4.1.52.4.1.2.4.2.3.1.1.5
The administrative status requested by management for the duplex of this
port. The value of halfduplex(2) indicates that if Auto-Negotiation
is disabled for this port, that the port will operate in half duplex,
provided that the port supports half duplex, as specified by
ctEtherSupportedDuplex.
The value of fullduplex(3) indicates that if Auto-Negotiation
is disabled for this port, that the port will operate in full duplex,
provided that the port supports full duplex, as specified by
ctEtherSupportedDuplex.
In all cases, if the value specified does not indicate a duplex that
the port supports the set will fail.