Disable a Physical Interface

You can disable a physical interface, marking it as being down, without removing the interface configuration statements from the configuration. To do this, include the disable statement at the [edit interfaces interface-name] hierarchy level:

[edit interfaces interface-name]

disable; 

Example: Disable a Physical Interface

Disable a physical interface:

[edit interfaces]

so-1/1/0 {

    mtu 8000;

    clocking internal;

    encapsulation ppp;

    sonet-options {

        fcs 16;

    }

    unit 0 {

        family inet {

            address 12.12.12.21/32 {

                destination 12.12.12.22;

            }

        }

    }

}

[edit interfaces]

user@host# set so-1/1/0 disable

[edit interfaces]

user@host# show so-1/1/0

so-1/1/0 {

    disable;                        # Interface is marked as disabled

    mtu 8000;

    clocking internal;

    encapsulation ppp;

    sonet-options {

        fcs 16;

    }

    unit 0 {

        family inet {

            address 12.12.12.21/32 {

                destination 12.12.12.22;

            }

        }

    }

}