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tdm-options (Interfaces)


Hierarchy Level


Configure TDM options to enable the smart SFP to encapsulate PDH (Plesiochronous Digital Hierarchy) and SDH (synchronous Digital Hierarchy) traffic over packet switched networks (PSNs).



Enables checking of the destination MAC address of the incoming packets on the receiving SFP. If you have configured the destination MAC address using the dmac-address option, use this option to verify the MAC address on the receiving SFP. If you have enabled MAC address verification and the MAC address does not match, the packet is discarded by the smart SFP.

sfp-type sfp-type

Specify the smart SFP type you want to configure on the interface. Values: T1, E1, DS3, STM1, STM4, and STM16.


Enables looping back of the input path (Rx) of TDM traffic on the SFP TDM port.


Enables looping back of the output path (Tx) of TDM traffic on the SFP TDM port.

The remaining statements are explained separately. Search for a statement in CLI Explorer or click a linked statement in the Syntax section for details.

Required Privilege Level

interface—To view this statement in the configuration.

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

Release Information

Statement introduced in Junos OS Release 19.4.