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Viptela Documentation


vpn interface duplex—Configure whether the interface runs in full-duplex or half-duplex mode.

On all vEdge router models, all interfaces support 1-Gigabit Ethernet SFPs. These SFPs can either be copper or fiber. For fiber SFPs, the supported speeds are 1 Gbps full duplex and 100 Mbps full duplex. For copper SFPs, the supported speeds are 10/100/1000 Mbps and half/full duplex. By default, the router autonegotiates the speed and duplex values for the interfaces.

To use a fixed speed and duplex configuration for interfaces that do not support autonegotiation, you must disable autonegotiation and then use the speed and duplex commands to set the appropriate interface link characteristics.

vManage Feature Template

For all Viptela devices:

Configuration ► Templates ► VPN Interface Ethernet
Configuration ► Templates ► VPN Interface PPP Ethernet

Command Hierarchy

vpn vpn-id  
  interface geport/slot   
    duplex (full | half)


Duplex Mode
(full | half)
Set the interface to run in full-duplex or half-duplex mode.
Default: full

Operational Commands

show interface


Configure an interface to run in half-duplex mode:

vpn 0
 interface ge0/0
   no autonegotiate
   duplex half

Release Information

Command introduced in Viptela Software Release 14.1.​
Support for autonegotiation added in Release 15.3.

Additional Information

See the Segmentation CLI Reference article for your software release.

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