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Enabling Remote Loopback Support on the Local Interface

You can allow a remote DTE to set a local interface into remote loopback mode on IQ2 Gigabit Ethernet interfaces and all Ethernet interfaces on the MX-series routers. When a remote-loopback request is sent by a remote DTE, the JUNOS software places the local interface into loopback mode. When an interface is in loopback mode, all frames except OAM PDUs are looped back without any changes to the frames. OAM PDUs continue to be sent to the management plane and processed. By default, the remote loopback feature is not enabled.

To enable remote loopback, include the allow-remote-loopback statement at the [edit protocol oam ethernet link-fault-management interface interface-name negotiation-options] hierarchy level:



[edit protocol oam ethernet link-fault-management interface interface-name negotiation-options]
allow-remote-loopback;

Note: Activation of OAM remote loopback may result in data frame loss.

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