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link-mode (full-duplex | half-duplex);

Hierarchy Level

[edit interfaces interface-name],[edit interfaces ge-pim/0/0 switch-options switch-port port-number]

Release Information

Statement introduced before JUNOS Release 7.4.


Set the device’s link connection characteristic.


full-duplex—Connection is full duplex.

half-duplex—Connection is half duplex.

Default: Fast Ethernet interfaces, except the J Series ePIM Fast Ethernet interfaces, can operate in either full-duplex or half-duplex mode. The router’s management Ethernet interface, fxp0 or em0, the built-in Fast Ethernet interfaces on the FIC (M7i router), and the Gigabit Ethernet ports on J Series Services Routers with uPIMs installed and configured for access switching mode autonegotiate whether to operate in full-duplex or half-duplex mode. Unless otherwise noted here, all other interfaces operate only in full-duplex mode.

Required Privilege Level

interface—To view this statement in the configuration.

interface-control—To add this statement to the configuration.

Published: 2010-04-20

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