interfaces {
   so-0/0/0 {
      description "Interface POS/STM16";
      traceoptions {
         flag all;
      }
      no-keepalives;
      mtu 9192;
      encapsulation ppp;
      sonet-options {
         fcs 32;
      }
      unit 0 {
         family inet {
            no-redirects;
            address 193.252.123.45/30;
         }
         family iso;
         family inet6 {
            address 2001:688:1F80:ABCD::2/64;
         }
         family mpls;
      }
   }
}