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FlexConnect VLAN Based Central Switching
Associate a client on this WLAN and authenticate using the user name configured in the AAA server in
Step 10
order to return the AAA VLAN.
Step 11
The client should receive an IP address from the dynamic VLAN returned via the AAA server.
In order to verify, click WLC GUI > Monitor > Client, click the specific client MAC address in order
Step 12
to check the client details.
Limitations
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FlexConnect VLAN Based Central Switching
In controller software releases 7.2, AAA override of VLAN (Dynamic VLAN assignment) for locally
switched WLANs will put wireless clients to the VLAN provided by the AAA server. If the VLAN
provided by the AAA server is not present at the AP, the client is put to a WLAN mapped VLAN on that
AP and traffic will switch locally on that VLAN. Further, prior to release 7.3, traffic for a particular
WLAN from FlexConnect APs can be switched Centrally or Locally depending on the WLAN
configuration.
From release 7.3 onwards, traffic from FlexConnect APs can be switched Centrally or Locally depending
on the presence of a VLAN on a FlexConnect AP.
Summary
Traffic flow on WLANs configured for Local Switching when Flex APs are in Connected Mode:
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Flex 7500 Wireless Branch Controller Deployment Guide
36
Cisco Airespace-specific attributes will not be supported and IETF attribute VLAN ID will only be
supported.
A maximum of 16 VLANs can be configured in per-AP configuration either via WLAN-VLAN
Mapping for individual FlexConnect AP or using ACL-VLAN mapping on the FlexConnect group.
If the VLAN is returned as one of the AAA attributes and that VLAN is not present in the Flex AP
database, traffic will switch centrally and the client will be assigned this VLAN/Interface returned
from the AAA server provided that the VLAN exists on the WLC.
If the VLAN is returned as one of the AAA attributes and that VLAN is not present in the Flex AP
database, traffic will switch centrally. If that VLAN is also not present on the WLC, the client will
be assigned a VLAN/Interface mapped to a WLAN on the WLC.
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