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Hierarchy Level

Release Information

Statement introduced in Junos OS Release 9.3.


Configure the Two-Way Active Measurement Protocol (TWAMP) responder or sever settings on all M Series and T Series routers that support Multiservices PICs (running in either Layer 2 or Layer 3 mode), and on MX Series routers.

TWAMP is an open protocol for measurement of two-way metrics. The host that initiates the TCP connection takes the roles of the control-client and (in the two-host implementation) the session-sender. Such a device is also called the TWAMP client. The host that acknowledges the TCP connection accepts the roles of a server and (in the two-host implementation) and the session-reflector. Such a device is also called the TWAMP server. The TWAMP-Test messages are exchanged between the session-sender and the session-reflector, and the TWAMP-Control messages are exchanged between the control-client and the server.

The following addresses cannot be used for the client-list source IP address used for probes:


  • (loopback)

  • (multicast)

  • (broadcast)

The remaining statements are described separately.

Required Privilege Level

system—To view this statement in the configuration.

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