4400 and 5500 in same mobility group

Hello
Has anyone experience or know if its possible to join 4400 wlc and 5508 to the same mobility group? Can't find much info out there, just want to find out if there are any gotchas.
Thanks

Yes you can but reference this link.
http://www.cisco.com/en/US/docs/wireless/controller/5500/tech_notes/Wireless_Software_Compatibility_Matrix.html#wp123314
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WLC 4400 - Different minor versions same mobility group?

Hi all,
i have 2 WLC 4400 integraded in 3750G.
One has 6.0.202 and the other 6.0.188.
They are in different places but now i want to put them in the same mobility group.
Will this difference be a problem?
BR
Anthony

Yes it will be an issue. You have to remember that the AP gets it firmware from the WLC image. So if an AP has to mi e from one to the other, it will either upgrade or downgrade each time. Best practice is to keep the firmware the same.
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Mobility Group Table *MUST* be populated in each WLC in same mobility group

For what it's worth,
I recently discovered that when you have multiple controllers and want to implement Mobility Groups, more is needed than simply entering the same Default Mobility Group Name for each controller within the mobility group. The following is required:
a) The IP address of the "Virtual" interface on each controller must be identical on each controller within the mobility group.
b) The Default Mobility Group Name must be identical on each controller within the mobility group (case sensitive).
c) The mobility table must be populated with an entry for each controller within the mobility group.
Otherwise, you will see some inexplicable behavior such as:
* LWAP access points refusing to change to a different controller, even if their primary controller is explicitly set and the LWAP is rebooted.
* LWAP access points unable to find any other wireless controller other than the one pointed to by the "CISCO-LWAPP-CONTROLLER" DNS entry (presumably, this would also be the case if DHCP Option 43 is used to point the LWAP to a controller). Once the first controller reaches its max. capacity of LWAPs, no more LWAPs can join.
* Even MASTER CONTROLLER MODE has no effect.
Cisco TAC was able to explain the great mystery of the Mobilty Group Table to me. However, unless you know your problem is related to mobility groups issues, you might not know to start there (I know I didn't).
The least difficult method I have found for populating the mobility group table is as follows:
Build a text file with one entry for each controller in the mobility group as follows:
Log into the GUI for each controller and selecting: Controller -> Mobility Management -> Mobility Groups, click the "EDIT ALL" button and copy the MAC and IP address from the text box into a text file using NOTEPAD. Repeat this for each controller, creating a new line for each:
The format for the entries is as follows:
00:1a:6c:91:22:A0 192.168.20.44
00:1a:6c:91:22:B4 192.168.20.45
Once the text file is completed (one entry for each controller in the mobilit group), click the EDITALL button and copy the entire contents of the text file and paste it into the text box on the controller GUI, click the APPLY button and click Save Changes. Repeat for each controller.
Again, make sure that the following settings are IDENTICAL in each of the controllers in the Mobility Group:
* The IP address of the "virtual" interface ( Controller -> interfaces ) must be the same on all controllers.
* The "Default Mobility Domain Name" ( Controller -> General ) must be identical on each controller in the mobility group (note: the Mobility Domain Name is case sensitive).
After making changes directly to the controllers, a "refresh from controller" in the WCS might be needed to get the WCS to attempt to synchronize itself with the controllers.
Here is a link to the 4.2 Wireless Controller Configuration Guide which discusses this in greater detail.
http://www.cisco.com/en/US/products/ps6366/products_configuration_guide_chapter09186a00808e638b.html
It is unfortunate that there are currently no mechanisms in the WCS 4.2 to make these changes in bulk (i.e.: The WCS has no Controller Template to do this).
Also, if you ever need to replace a controller, you will need to update the Mobility Group Table in each controller in the Mobility Group (since the tables will have the MAC address of the old controller which will now be different in the new replacement controller).
Despite having used the "unified" product for some time now, there are still surprises from time to time. I just thought that I would share my experience for those who may want avoid it and/or who may be encountering any of odd the behavior described above.
- John

Hi John,
Nice work with this very relevant info! Please post a short reply here so that we can give this the nice rating it deserves :)
Thanks again!
Rob

WLC 4400 and 5500 Fail-over

Can we do the same thing with WCL 4400 and 5500 series for failover? We have 1 existing 4400 WLC and we wanted to purchase another 1 for fail-over as well as backup. But right now, 4400 is EOL already. The only option is to have the 5500 WLC.
So if you do have previous set-up like this, so I would need your inputs.. Otherwise, same as usual, will gonna test to work this out.

You can have both in a primary and backup, but make sure they are on the same code version. I'm assuming that you also have the configuration correct for the two wlc to communicate.
I would put them both on the 7.0.220.0.
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Layer 2 & Layer 3 Controllers in Same Mobility Group

I want to upgrade the existing Layer 2 contollers 4100 and AP 1200 (in the same subnet) to Layer 3 (controller is different subnet from AP). Due to migration in phases, I need to have mix Layer 2 and Layer 3 controllers in short period of time. Any issue if there is mixed Layer 2 and Layer 3 controller in the same mobility group. Additionally, any concern if user roaming between Layer 2 and Layer 3 controllers in the same mobility group? Thank you.

On the controller page, General, there is a option LWAPP Transparent Mode to select Layer2 or Layer 3 mode of the controller. Not sure why can't convert from L2 to L3.
Actually I had converted few L2 controllers to L3 in the same mobility group in lab. I concern if there is any problem if mix L2 and L3 controler in the same mobility group. Thanks.

Diifference between WLC 2100 and 4400 and 5500

Hi
what is the difference between wire lan controllers(WLAN) 2100 and 4400 and 5500.

Hello syed
Cisco 5500 Series Controllers:
The Cisco 5500 Series Wireless LAN Controller is currently available in one model: 5508. The 5508 controller supports up to 250 lightweight access points and 7000 wireless clients (or 5000 wireless clients and 2500 RFID tags when using the client location feature), making it ideal for large enterprises and high-density applications.
Cisco 4400 Series Controllers:
Because the Cisco 4400 Series Wireless LAN Controller supports 802.11a/b/g and the IEEE 802.11n draft 2.0 standard, organizations can deploy the solution that best meets their individual requirements. Organizations can offer robust coverage with 802.11 a/b/g or deliver greater performance with 5x the throughput and unprecedented reliability using 802.11n and Cisco's Next-Generation Wireless Solutions and Cisco Enterprise Wireless Mesh.
The Cisco 4400 Series Wireless LAN Controller is available in two models. The Cisco 4402 Wireless LAN Controller with two 1 GB Ethernet ports comes in configurations that support 12, 25, and 50 access points. The Cisco 4404 Wireless LAN Controller with four 1 GB Ethernet ports supports 100 access points. The Cisco 4402 controller provides one expansion slot. The Cisco 4404 controller provides two expansion slots that can be used to add VPN termination.
Cisco 2100 Series Controllers:
These controllers are part of a Payment Card Industry (PCI) certified architecture, and are well suited for retail customers who deploy transactional data applications such as scanners and kiosks. With performance up to 100 Mbps, the Cisco 2100 Series Wireless LAN Controllers also enable small and medium branch offices to deploy collaboration applications such as guest access and mobile voice.

Compatibility with 4400 and 5500

Folks,
I have a doubt, there is an existing setup of 4400 series controller. I would like to add more access points , which the current controller cannot accommodate, also client requires redundancy in the solution. I was wondering, if it is possible to add 5500 controller and configure one to one redundancy b/w 4400 controller and 5500 series.
Regards,
Siddarth .

I see no reason why you couldn't. But make sure you share the same code and update the
mobility group.

Roaming between 4400 and 5500 controllers

Hi, we are planning to do an AP migration, but there is a doubt for this.
Actually we have a 4402 controller with 1120 APs both of which are marked as EoL products, we want to jump over the new 2600 APs and 5508 Controller for increase signal coverage but we have the following deals:
Last firmware for 4402 controller is 7.0
Firmware needed for 5508 to support 2600 APs is 7.3
Is it possible to configure mobility between 4402 and 5508 even with different firmware branch?

Inter-Release Controller Mobility (IRCM)
Table 10 lists the inter-release Controller Mobility (IRCM) compatibility matrix.
Table 10 Inter-Release Controller Mobility Compatibility Matrix
CUWN Service
4.2.x.x
5.0.x.x
5.1.x.x
6.0.x.x
7.0.x.x
7.2.x.x
7.3.x.x
Layer 2 and Layer 3 Roaming
X
X
X
X
X
Guest Access/Termination
X
X
X
X
X
X
X
Rogue Detection
X
X
X
X
X
Fast Roaming (CCKM) in a mobility group
X
X
X
X
X
Location Services
X
X
X
X
X
Radio Resource Management (RRM)
X
X
X
-1
Management Frame Protection (MFP)
X
X
X
X
X
AP Failover
X
X
X
X
X
1 In the 7.2.x.x release, RF Groups and Profiles were introduced. RRM for 7.2.x.x and later releases is not compatible with RRM for any previous release.
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin

Preventive maintenance WLC 4400 and 5500?

Hi good morning,
i asking for help in order to make a preventive maintenance for WLC 4000 and 5500.
the main problem is: can i open the WLC´s and clean all the circuits they have inside? or must i only cleaning out the WLC?
And i would like to know if there are documentation about this topic.
thanks.

thanks
I thought of opening the WLC, and use compressed air to remove dust only.
but like you mention would be better not open it.
Greetings

N+1 redundancy and different mobility groups

Is it possible to backup 2 controllers with 2 different mobility groups (for example GROUP1 and GROUP2) to the same backup controller (running HA SKU N+1 (7.4)) ?
Since a controller can only be configured in 1 mobility group, this doesn't seem to be possible. Can someone confirm ?
regards,
Geert

Hello,
As per your query i can suggest you the following solution-
In all Wireless LAN Controller (WLC) versions earlier than 4.2.61.0, when a WLC goes "down," the LAP registered to this WLC can failover only to another WLC of the same Mobility Group, if the LAP is configured for failover. From Cisco WLC version 4.2.61.0 and later, a new feature called Backup Controller Support is introduced for access points to failover to controllers even outside the Mobility Group. Refer to Wireless LAN Controller and Light Weight Access Points Failover Outside the Mobility Group Configuration Example for more information.
Hope this will help you.

WLC 5508 and mobility groups

Hi,
We are using 2 WLC 5508 running 7.0.98.0 sw (AP's are 1142) at our primary site. They are hosting 3 different WLAN/SSID's, one for guest and the
other 2 are for corporate access. We have put the WLC's in a mobility group, say "AAAA".
Now we have the need for our UK peer site to publish a corp WLAN that exists in UK - at our site, and when trying to configure for that (following the c70cg.pdf) - I put the WLC's for UK in a new mobility group, say "BBBB". But i can't add our WLC's into that mobilty group
(i get a duplicate mac address message).
What's the correct way of configuring this, does all WLCs need to be in the same mobility group?
Is there some reason why we can't have 2 mobility groups? Is there any upside/downside to configuring 2 mob. groups?
Any clearification would be greatly appreciated
BR
//Mikael

I think you are misunderstanding , so far what you did on your local swedish site is correct. Your two swedish WLCs have to be in their own same mobility group so you can give seamless roaming to your wireless users across your swedish area without interruption.
On a WLC mobility group config page, you can have only one entry per WLC, this is why you are getting the duplicate error message.
WEBGUI - CONTROLLER - MOBILITY MANAGEMENT - MOBILITY GROUPS
If you want to put your 4 WLCs so they exchange mobility messages, the following has to happen on all 4 WLCs.
xx:xx:xx:xx:xx:xx 192.168.1.1 uk
yy:yy:yy:yy:yy:yy 192.168.1.2 uk
zz:zz:zz:zz:zz:zz 172.17.1.1 sweden
aa:aa:aa:aa:aa:aa 172.17.1.2 sweden
Note when you add WLC on the mobility section, the WLC start sending messages to each like, hey i have this client and you have that client and so on. But this has nothing to do with what you are trying to achieve.
With regards to the execs that are coming, yes, replicate the SSID and point it to the Radius Server they have in UK, add your swedish WLC(s) as a NAS on the Radius Server and it should work as if they were in UK. that should be enough and i advise you to do the following for mobility groups config.
on the two UK WLCs
xx:xx:xx:xx:xx:xx 192.168.1.1 uk
yy:yy:yy:yy:yy:yy 192.168.1.2 uk
on the two Swedish WLCs
zz:zz:zz:zz:zz:zz 172.17.1.1 sweden
aa:aa:aa:aa:aa:aa 172.17.1.2 sweden
hope i cleared it out for you. greeting from cold Belgium tonight :-) and hope the execs will enjoy Sweden!

Can't put two 5508 WLCs in the same RF group

Hi experts,
I have two 5508 WLCs and I want them to be backup to each other. I put in the same "RF Group Name" and even the same "Default Mobility Domain Name" however under Wireless -> 802.11b/g/n -> RRM -> RF Grouping each controller still only have themselves as the only memter to the group.
Two controllers are having management IPs on the same subnet 192.168.161.x/24. AP-manager interfaces are in the same network as well. They can ping each other fine. The following screen shots show the current relavent config on the controller:
I do have two controllers in the same mobility group and they are both showing up...
Does anyone know why they can't add each other to the RF group? All other settings are pretty much default...
Thanks!

Hi,
is there a chance that one of the 2 WLC doesn't contain any access point ? Or that the APs from one WLC are not physically close to the APs of the second WLC ?
The point of RF grouping is to exchange RF information, to make RRM decisions together and to know what ap is a rogue and which is not. RF group information travels over the air from AP to AP.
So if a wlc has no ap of if its APs are not close to those of the other WLC there is both no point in grouping with the other WLC in rf group and also no technical way of doing so.
Regards,
Nicolas
===
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Mobility group membership

I have 4 WLC's deployed :
1. AnchorWLC - WLC4402 anchor in a DMZ for guest access
2. WLCA1 - WLC4402 on SiteA
3. WLCB1 - WLC2006 on SiteB
4. WLCB2 - WLC2006 on SiteB
SiteA & SiteB are geographically separated.
On all WLC's there is the same mobility group 'group1' with the following group members:
1.on AnchorWLC: group1 members:WLCA1,WLCB1,WLCB2
2.on WLCA1: group1 members: anchorWLC
3.on WLCB1: group1 members: WLCB2,anchorWLC
4.on WLCB2: group1 members:WLCB1,anchorWLC
As SiteA and SiteB are geographically separated I have not included internal(non-anchor) WLC's that are on siteA in the mobility group created on WLC's on SiteB and vice versa . The only WLC that has all controllers added to his mobility group is the AnchorWLC as guest access is needed from both siteA and siteB.
Is this a valid config(anayway it is working...) or is it recommended to have 2 different mobility groups, one for each site(A & B) and create 2 seperate mobility groups on the anchorWLC ?

I would recommend going for two separate mobility groups. Even though it is working since it is geographically separated, its always better to have different mobility groups.

Mobility Group Requirements for Guest Anchor WLC

Hello -
I've alway assumed you can't create a guest tunnel between a local WLC and an anchor WLC that are in different mobility groups.   However, I was told recently (without much detail) that this is possible. So I have set out to test this.
I am trying to point one of my local WLCs guest SSIDs to a guest anchor WLC in a different mobility group.   I have a maintenance window coming up and I am looking to anchor the clients on one campus to the anchor WLC on the other campus so guest service does not go down.   Each campus is it's own mobility group.   In trying to set this up I went to the "mobility anchors" screen for the guest SSID on one of the local WLCs and I am unable to add the anchor WLC from the other campus because it's non in the drop-down menu. This is because it's not in the same mobility group.   So my question is how do I anchor clients coming through a local WLC in one mobility group to an anchor WLC in another mobility group?
To me it doesn't seem possible without significant configuration changes.   I don't want to reconfigure/recreate mobility groups.
Thanks
Chuck

Not only is it possible, I would recommend it. However, you may be confusing some concepts.
The Mobility Group is different than the Mobility Domain. I generally refer to the Mobility Group as those WLCs with the same Default Mobility Group Name, and the Mobility Domain as the entire Mobility List (where you can define up to 72 controllers from various mobility groups).
The point is that if WLCs 1-10 are GroupA, and WLCs 11-20 are GroupB, for anchoring to work you at least need to add the anchor to the mobility list of the foreign wlc, and vice versa.
If you notice, when you add a mobility entry to the list, it should ask you for mobility group. If you leave it blank, it should default to that of that WLC, but on GroupA controllers, you could define GroupB controllers (and specific GroupB) and then you should now have mobility established between your controllers and the Anchor configuration will have your anchors in the drop-down....
Does that make sense?

WLC Mobility Group Confusion

Can some please clarify how Mobility groups work and when to use them. I have 2 data centers, each with a WLC, for centralized control. I just want to provide simple redundancy.
When should I use an Anchor group.
Thanks for your help.

To make it simple, any wlc's that will be a primary, secondary or tertiary WLC for lap's will need to be placed in the same mobility group. Now if you have a guest anchor controller for guest, then that will need to be added in the same mobility group. Bottom line, when users roam from AP to AP from WLC to another even getting tunneled (anchor) the WLC's need to be aware of the roaming and that is what mobility group does.
Anchor is if you want to tunnel users to a specific controller like in a guest wireless situation when the WLC is located in the DMZ. There are other reasons, but this is most likely why.

4400 and 5500 in same mobility group

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