Cisco 2100 Series Configuration Manual page 479

Chapter 8 Controlling Mesh Access Points
VLAN mode must be set as non-VLAN transparent (global mesh parameter). Refer to
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Global Mesh Parameters" section on page
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• VLAN configuration on a mesh access point is only applied if all the uplink mesh access points are
able to support that VLAN.
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VLAN tagging can only be configured on Ethernet interfaces.
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Backhaul interfaces (802.11a radios) act as primary Ethernet interfaces. Backhauls function as
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trunks in the network and carry all VLAN traffic between the wireless and wired network. No
configuration of primary Ethernet interfaces is required.
• 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 configuration is required to support VLAN tagging on any 802.11a backhaul Ethernet interface
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within the mesh network.
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• VLAN configuration is not allowed on port-02-cable modem port of an 152x access point. VLANs
can be configured on ports 0 (PoE-in), 1 (PoE-out) and 3 (fiber).
• If bridging between two MAPs, enter the distance (mesh range) between the two access points that
are bridging. (Not applicable to applications in which you are forwarding traffic connected to the
MAP to the RAP, access mode)
Up to 16 VLANs are supported on each sector. Therefore, the cumulative number of VLANs
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supported by a RAP's children (MAPs) cannot exceed 16.
Ethernet ports on access points function as either access or trunk ports within an Ethernet tagging
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deployment.
Access Mode– In this mode only untagged packets are accepted. All packets are tagged with a user-
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configured VLAN called access-VLAN. For this mode to take effect, the global VLAN mode should
be non-VLAN transparent.
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VLAN transparent is enabled by default. To set as non-VLAN transparent you must uncheck the
VLAN transparent option in the global mesh parameters window.
If uplink access points are not able to support the VLAN, then the configuration is stored rather
than applied.
On 152x mesh access points, three of the four ports can be used as secondary Ethernet
interfaces: port 0-PoE in, port 1-PoE out, and port 3- fiber. Port 2 - cable cannot be configured
as a secondary Ethernet interface.
In Ethernet VLAN tagging, port 0-PoE in on the RAP is used to connect to the trunk port of the
switch of the wired network. Port 1-PoE out on the MAP is used to connect to external devices
such as video cameras.
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.
This option is used for applications in which information is collected from devices connected
to the MAP such as cameras or PCs and then forwarded to the RAP. The RAP then applies tags
and forwards traffic to a switch on the wired network.
Adding Mesh Access Points to the Mesh Network
8-16.
Cisco Wireless LAN Controller Configuration Guide
"Configuring
8-27