Alcatel-Lucent 7210 SAS E OS Configuration Manual page 80

Ethernet Port Commands
When autonegotiation is enabled on a port, the link attempts to automatically negotiate the link speed
and duplex parameters. If autonegotiation is enabled, the configured duplex and speed parameters are
ignored.
When autonegotiation is disabled on a port, the port does not attempt to autonegotiate and will only
operate at the speed and duplex settings configured for the port. Note that disabling autonegotiation
on gigabit ports is not allowed as the IEEE 802.3 specification for gigabit Ethernet requires
autonegotiation be enabled for far end fault indication.
If the autonegotiate limited keyword option is specified the port will autonegotate but will only
advertise a specific speed and duplex. The speed and duplex advertised are the speed and duplex
settings configured for the port. One use for limited mode is for multispeed gigabit ports to force
gigabit operation while keeping autonegotiation enabled for compliance with IEEE 801.3.
7210 SAS requires that autonegotiation be disabled or limited for ports in a Link Aggregation Group
to guarantee a specific port speed.
The no form of this command disables autonegotiation on this port.
Default
autonegotiate
Parameters limited — The Ethernet interface will automatically negotiate link parameters with the far end, but
duplex
Syntax duplex {full | half}
Context config>port>ethernet
Description
This command configures the duplex of a Fast Ethernet port when autonegotiation is disabled.
This configuration command allows for the configuration of the duplex mode of a Fast Ethernet port.
If the port is configured to autonegotiate this parameter is ignored.
Default
full
Parameters
full — Sets the link to full duplex mode.
half — Sets the link to half duplex mode.
efm-oam
Syntax efm-oam
Context config>port>ethernet
Description This command configures EFM-OAM attributes.
Page 80
will only advertise the speed and duplex mode specified by the Ethernet speed and duplex
commands.
7210 SAS E Interface Configuration Guide