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tunnel-devices (Tunnel-Capable PICs)


Hierarchy Level


List one or more tunnel-capable PICs to be used for creating multicast tunnel (mt) interfaces. Creating a PIC list enables you to control the load-balancing implementation.

Tunnel-capable PICs include:

  • Adaptive Services PIC

  • Multiservices PIC or Multiservices DPC

  • Tunnel Services PIC

  • On MX Series routers, a PIC created with the tunnel-services statement at the [edit chassis fpc slot-number pic number] hierarchy level.

The physical position of the PIC in the routing device determines the multicast tunnel interface name. For example, if you have an Adaptive Services PIC installed in FPC slot 0 and PIC slot 0, the corresponding multicast tunnel interface name is mt-0/0/0. The same is true for Tunnel Services PICs, Multiservices PICs, and Multiservices DPCs.


Multicast tunnel interfaces are created on all available tunnel-capable PICs, based on a round-robin algorithm.


mt-fpc/pic/port—Interface that is automatically generated when a tunnel-capable PIC is installed in the routing device.

Required Privilege Level

routing—To view this statement in the configuration.

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

Release Information

Statement introduced in Junos OS Release 10.2.