https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/encapsulation-edit-interfaces-physical.html
extended-vlan-bridge ( Physical Interface Options )
—Use extended VLAN bridge encapsulation on Ethernet interfaces that have IEEE 802.1Q VLAN tagging and bridging enabled and
that must accept packets carrying TPID 0x8100 or a user-defined TPID.
...
showroot@QFX5110-2# interfaces ge-0/0/13
flexible-vlan-tagging;
encapsulation extended-vlan-bridge;
unit 0 {
vlan-id 200;
}
{master:0}[edit]
root@QFX5110-2# commit check
[edit interfaces ge-0/0/13]
'unit 0'
interface needs to be in a bridge-domain or evpn to support family bridge
error: configuration check-out failed
{master:0}[edit]
root@QFX5110-2#
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| title | solution add interface to |
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vlan{master:0}[edit interfaces ge-0/0/16]
root@QFX5110-2# top show interfaces ge-0/0/16
flexible-vlan-tagging;
encapsulation extended-vlan-bridge;
unit 0 {
-id 200;
}
root@QFX5110-2# top show vlans
. . .
vlan200 {
vlan-id 200;
interface ge-0/0/12.0;
interface ge-0/0/16.0;
}