Configuring 802.1q trunk between UniFi AP and Juniper EX switch
802.1q VLAN trunking on port, according to UniFi Wireless Controller, AP is now in
Adoption Failed state.
Tap the traffic (e.g. using port reflector). UniFi AP expects no VLAN tagging on native VLAN, tagged packets on management interface will get discarded. If you’ve a lot of
DHCP Discover and
DHCP Offer packets but no
DHCP Request packets, check if your native VLAN packets are not tagged.
show ethernet-switching interfaces will probably describe default VLAN as tagged and untagged at the same time:
Interface State VLAN members Tag Tagging Blocking
ge-0/0/1.0 up default 1 untagged unblocked
VLAN2 2 tagged unblocked
VLAN3 3 tagged unblocked
VLAN4 4 tagged unblocked
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