Ports on AIR-CT2504-5-K9

AIR-CT2504-5-K9  has 4 Gig ports with a note "Access point directly connected to the controller is not currently supported."
So what is the idea for these ports? Just an etherchannel to provide 4 Gig of bandwidth or some other uses?

Hello,
The ports on the 2500 can be used for multiple deployment scenarios. You can have port 2 be a backup port in case the connection on port 1 fails (redundancy). You can also send different vlan traffic out a different physical port (guest segment, etc). The 2500 does not support Link Aggregation, so you cannot configure the ports in an etherchannel bundle.
At this time, connecting APs directly to the WLC is not a supported scenario.
For additional details, please see the following section of the 2500 deployment guide:
http://www.cisco.com/en/US/products/ps11630/products_tech_note09186a0080b8450c.shtml#scenarios
-Pat

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