My take on this is that the WLSE and WLSE Express are really not really a viable choice for new purchases.The WLSE has not been completly "End of Life" although I think its safe to say that Cisco is really promoting the change to LWAPP. They even have a migration path from the WLSE to WCS in place. There are many Autonomous AP's that can be converted to LWAPP as well. You probably want to look into one of the various versions of the WLC (Wireless Lan Contoller) Have a look;
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Have a look at this good Q & A from a recent "Ask the Expert" event;
Question from Andrew;
"Not strictly a deployment question but...! What's the status of the autonomous APs and the WLSE? Are they still being developed or are they pretty much due for retirement? In other words should we be moving to using LWAPs and WLCs?
Answer from Sergey @ Cisco;
"Although this question does not exactly fit into the discussion subject I know that WLAN products based on the Distributed Architecture are still being developed, although you are likely to see more new features coming in the controller based solution. Using our internally deployed WLAN as an example - we are migrating from the fully featured IOS based APs deployed about 6 years ago to the network with about twice as many LWAPP APs and wireless controllers."
This thread shows the varying opinions about the WLSE vs WLC/WCS debate;
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
This is the start of a display filter cross reference between Wireshark
and OmniPeek. The 1st installment is a table of advanced filters. More
filters will be added as time allows. It is a living doc, so check back
for changes every so often Please feel f...