If specified, request that the device only use the specified duplex mode. Either "half" or "full".
If non-zero, only transmit packets of the specified size or smaller, breaking larger packets up into multiple Ethernet frames.
The setting's name, which uniquely identifies the setting within the connection. Each setting type has a name unique to that type, for example "ppp" or "wireless" or "wired".
Specific port type to use if the device supports multiple attachment methods. One of "tp" (Twisted Pair), "aui" (Attachment Unit Interface), "bnc" (Thin Ethernet) or "mii" (Media Independent Interface). If the device supports only one port type, this setting is ignored.
s390 network device type; one of "qeth", "lcs", or "ctc", representing the different types of virtual network devices available on s390 systems.
If non-zero, request that the device use only the specified speed. In Mbit/s, ie 100 == 100Mbit/s.
If %TRUE, allow auto-negotiation of port speed and duplex mode. If %FALSE, do not allow auto-negotiation, in which case the "speed" and "duplex" properties should be set.