Cisco Aironet Series 1700/2700/3700 Access Point Deployment Guide
Cisco Aironet Series 2700 Access Point
Figure 98
AP 2700 supports all standard modes of operation
Auxiliary Ethernet Port (New Feature)
AP 2700 has an additional Ethernet port labeled “AUX” for Auxiliary port used for downstream traffic.
The Ethernet uplink port to the controller on the AP 3700 is labeled Ethernet, on the AP 2700 it is shortened to PoE.
This AUX port is designed to function as a downstream port. The AUX port is ideal for devices such as video cameras,
projectors, IP Phones, Point of Sale terminals, and other end point devices. It is not designed to perform port aggregation nor
will it provide PoE out.
Additionally, this AUX port will be disabled if the AP is being powered by a limited 15.4 W .3af PoE source because it requires
PoE+, .3at, or local power (wall brick type power supply) to properly function.
Note
In release 7.6 MR2/8.0, this port is not manageable and is simply bridged back to the controller. Avoid
connecting another AP to this port or devices such as switches/hubs or the same switch or uplink as the
PoE port because it can create spanning tree loop issues.
For example, if you configure the switch port (to AP 2700) as access in VLAN 5, then the traffic comes from the AUX port.
If you configure the switch port to trunk, the AP 2700 will be in the native VLAN and the AUX will also be in native by default.
Traffic from the AUX port will not be sent to the WLC, and the AP 2700's
built-in
switch will drop the traffic in the native
VLAN.