Design Guide

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Cisco Aironet 1520, 1130, 1240 Series Wireless Mesh Access Points, Design and Deployment Guide, Release 6.0
OL-20213-01
Connecting the Cisco 1520 Series Mesh Access Point to Your Network
Figure 65 Warning Message Displays for Backhaul Configuration Attempts
•
No configuration is required to support VLAN tagging on any 802.11a backhaul Ethernet interface
within the mesh network.
– This includes the RAP uplink Ethernet port. The required configuration happens automatically
using a registration mechanism.
– Any configuration changes to an 802.11a Ethernet link acting as a backhaul are ignored and a
warning results. When the Ethernet link no longer functions as a backhaul the modified
configuration is applied.
• VLAN configuration is not allowed on port-02-cable modem port of AP1520s. VLANs can be
configured on ports 0 (PoE-in), 1 (PoE-out) and 3 (fiber).
• Up to 16 VLANs are supported on each sector. Therefore, the cumulative number of VLANs
supported by a RAP’s children (MAPs) cannot exceed 16.
• The switch port connected to the RAP must be a trunk.
– The trunk port on the switch and the RAP trunk port must match.
– The RAP must always connect to the native VLAN ID 1 on a switch. The RAP’s primary
Ethernet interface is by default the native VLAN of 1.
– The switch port in the wired network that is attached to the RAP (port 0–PoE in) must be
configured to accept tagged packets on its trunk port. The RAP forwards all tagged packets
received from the mesh network to the wired network.
– No VLANs, other than those destined for the mesh sector, should be configured on the switch
trunk port.
• A configured VLAN on a MAP Ethernet port cannot function as a Management VLAN.
• Configuration is effective only when an mesh access point is in CAPWAP RUN state and
VLAN-Transparent mode is disabled.
• Whenever there is a case of roaming or CAPWAP restart, an attempt is made to apply configuration
again.