на QFX5100/5110/5120 другой синтаксис тогда используется cm@sw01# show | compare
[edit interfaces irb]
+ unit 28100 {
+ family inet {
+ address
10.250.253.252/24;
+ }
+ }
[edit vlans]
+ v-qinq {
+ vlan-tags outer 28 inner 100;
+ interface xe-1/0/30.0;
+ interface xe-1/0/31.0;
+ interface xe-1/0/32.0;
+ l3-interface irb.28100;
+ }