Configuration Commands
Page 332 7750 SR OS Interface Configuration Guide
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.
accept-remote-loopback
Syntax [no] accept-remote-loopback
Context config>port>ethernet>efm-oam
Description This command enables reactions to loopback control OAM PDUs from peers.
The no form of this command disables reactions to loopback control OAM PDUs.
Default no accept-remote-loopback