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redundant wlan controllers (AIR-CT5508-50-K9)

Q: a client has a network with 60 AP's controlled by a AIR-CT5508-50-K9 (+  L-LIC-CT5508-25A) with a redundant power supply. Can he get full redundancy by purchasing a second controller? If he purchases one, can he bring it into the network? What about the extra license for 25 extra AP's installed on the first controller?

4 REPLIES
Cisco Employee

redundant wlan controllers (AIR-CT5508-50-K9)

Hi,

The Controller Lisence is per WLC based and if you buy another WLC then you need to buy another set of license again for the new WLC.

Regards

Surendra

New Member

redundant wlan controllers (AIR-CT5508-50-K9)

Thx Surendra for your answer

Suppose the client decides to purchase a second one, can he install this second controller as a 'sleeping backup' device in the network, together with the first one or does he have to put it aside waiting until the first goes out of service?

Isn't it better to just purchase an onsite SMARTnet?

redundant wlan controllers (AIR-CT5508-50-K9)

You can have two WLCs up and running at the same time and make APs joining one WLC and the other is standup backup.

If the primary WLC goes down the APs move to join the secondary WLC.

You need to put the two WLCs in same mobility domain and configure APs for primary and secondary WLCs.

HTH

Amjad

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Cisco Employee

redundant wlan controllers (AIR-CT5508-50-K9)

Can he get full redundancy by purchasing a second controller?

No, it needs AP license just like the one in production.

If he  purchases one, can he bring it into the network?

Yes. WLC can run all day long without AP license on them but it won't be  useful to have as backup as APs are not going to join them. However all  WLC comes with evaluation license  that let you join the APs for limited  time.

What about the extra  license for 25 extra AP's installed on the first controller?

Get AP license count specifically for the second/redundant controller. Your first WLC seem to have capacity for 75 APs, You need redundant WLC with AP license count similar to the first one i.e, 50 + 25A.

check licensing and ordering guide for 5500 WLC.

http://www.cisco.com/en/US/products/ps10315/products_tech_note09186a0080b78104.shtml

http://www.cisco.com/en/US/prod/collateral/wireless/ps6302/ps8322/ps10315/data_sheet_c78-521631.html

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