Roaming between WLANs on different WLCs

Hello,
Is it possible to create the same SSIDs on two different WLCs that are not in a failover or mobility group but have an interface on the same network so that users can connect to those SSIDs automatically without having to do it manually? For instance, If I'm in one location and connected to SSID-A on WLC1 then go to another location in the same campus would I be able to automatically connect to SSID-A on WLC2 without having to do it manually? This is assuming that the SSIDs on both WLCs are set up the same. Thanks!
Regards,
Terence

Thanks Scott for your quick response! Here's the deal, we have 2 locations that are connected to our main campus via an Ethernet Private Line fiber link. They are about a couple of blocks away. We are deploying wireless to both locations but my manager is looking to have guests that come from one of these locations to the main campus to be able to get connected to the same SSID that's managed by a different controller. It's obvious that they'll lose connection due to the distance between the remote and main offices. So are you saying this will work or it won't work since the connection will be lost once they travel far away enough from the APs?

Similar Messages

Roaming between Flexconnect groups for scaling

I have a customer that needs flexconnect at each of his 10 locations to access local servers and printers. The customer has a pair of 5508 WLCs running 7.6.130.0.
While the customer currently has 25 and under AP count per site, they are considering an expansion to 50 - 60 per site.
We are considering the mobility agent on 3650/3850/4500 switches, but the multi-hop restriction will drive the cost too high.
What is the downside for defining multiple flexconnect groups per site?
The customer is also considering Unified Communications. For example, would the voice RTP stream on a wireless IP phone roaming between APs on different flexconnect groups appear to be seamless?

If you plan on utilizing any real-time applications such as voice, you would not want these devices to be roaming between FlexConnect Groups. There will be a full re-authentication of the client; with the exception of OKC capable machines, which "may" roam more cleanly. This means some standard data clients may perform a fast roam, or at least not notice much of a hiccup even with a full re-auth.
In either scenario, you would want to make sure this is NOT a L3 mobility roam (ie. FlexConnect WLAN/VLAN mapping to different networks). This will cause major problems for all your clients as they will most likely end up talking on the new VLAN with their old IP address.
Mobility / Roaming Scenarios
WLAN Configuration
Local Switching
Central Switching
CCKM
PMK (OKC)
Others
CCKM
PMK (OKC)
Others
Mobility Between Same Flex Group
Fast Roam(1)
Fast Roam(1)
Full Auth(1)
Fast Roam
Fast Roam
Full Auth
Mobility Between Different Flex Group
Full Auth(1)
Fast Roam(1)
Full Auth(1)
Full Auth
Fast Roam
Full Auth
Inter Controller Mobility
N/A
N/A
N/A
Full Auth
Fast Roam
Full Auth
(1) Provided WLAN is mapped to the same VLAN (same subnet).

EAP-FAST - WLC 7.4 Roaming between different FlexConnect (FC) Group

Dear all,
WLC 7.4 Release Notes states that with both Local/Central Switching:
- Mobility in the same Flex Group with CCKM is Fast Roaming if WLAN is mapped to same VLAN
- Mobility between different Flex Group with CCKM cause a Full Auth
Using CCK with EAP-Fast during a call with Cisco IP Phone 7921G and 7925G we notice a gap when roaming from an AP belonging to FC GroupA to an AP belonging to FC Group B...so the only solution to do Fast Romaing is to use PMK(OKC) since CCKM will do a complete authentication each time moving from FC Group.
Where do we enable OKC for a specific WLAN? In the FlexConnect Group Menu?
Thanks a lot for sharing answer and suggestion
BR
O.G.

Hello Scott,
thanks for the explanation...
So if in 7.4.121 OKC is enabled by default I don't understand why I'm having a full Authentication when roaming from AP of FC Group A to AP to FC Group B instead of Fast-Roaming...and this is happening in all FC Group configured (6x).
Should I disable CCKM flag in the WLAN definition?!?!
FC Groups and Mobility
http://www.cisco.com/c/en/us/support/docs/wireless/5500-series-wireless-controllers/112042-technote-product-00.html#anc13
O.G

7920 roaming between two WLCs

hi,
- i have two WLCs 4404 and 4402 in the same mobility group and all connections seem to be ok.
- one ssid for voip.
- two 7920 phones
when i roam between the WLCs i will lose the connection.
What should i configure on the WLC??
thx

Are you doing L3 mobility?
If so, would configure the voice ssid for the same VLAN on both controllers to see if that works or not.
Of course for mobility group setup, need the mac and IP configured on each contoller in that mobility group.
Ensure that 3.02 is loaded on the 7920 phones.
Would recommend 4.0.217.0 or later for the controller version.
Refer to WLAN SRND for more info.
http://www.cisco.com/univercd/cc/td/doc/solution/emblty30.pdf

Inter-Controller and Inter-Subnet Roaming between WLC 4402 and 5508?

Hi!
Will it support roaming between WLC 5508 ver. 7.0 and WLC 4402 ver. 4.2?

Here is the matrix for support of IRCM, but the answer is yes.
http://www.cisco.com/en/US/docs/wireless/controller/5500/tech_notes/Wireless_Software_Compatibility_Matrix.html#wp116668
Sent from Cisco Technical Support iPhone App

VoWLAN Roaming without WLAN Controller (WLC)

Hi,
Need some advice here. I am trying to implement VoWLAN in a company using Cisco WAP4410n Access Point. The problem is, I've downloaded all Cisco WLAN Controller (WLC) data sheets and can't find any compatible WLAN Controller for this type of Access Point.
Can I still implement VoWLAN without WLAN Controller? Is there any way to provide smooth intercell roaming without WLAN Controller?
Thanks
Regards

I have designed the cells so they have 20% cells overlap. I've also designed the channels so they won't interfere with each other (I use 2 GHz channel here)
But what could be used to replace WLC's role to manage these Access Points? maybe some kind of server?

Roaming between E3000 wireless router and WAP300N

Hi all
The Linksys router I’ve got in my office room at home is providing poor coverage in my living room. Thus I’ve purchased a WAP300N and connected it by wire to the build-in 4 port switch of my Router (E3000). The set-up is providing a significant improvement in the living room, but… it seems as if the two wireless access points are “competing” over the “clients”.
When I move from the office room into the living room, my wireless equipment seems to be stuck on the connection to the wireless router in the office room – even though the signal from the WAP300N in the living room is much stronger.
The situation is exactly the same, when I move from the living room to the office room – the wireless equipment is stock on the weak signal from the living room.
I have to turn off and on the radio on my wireless equipment to get them to connect to the strongest signal.
Is there a way to make the “roaming” between wireless access points more smooth?
Kind regards
vonRasmussen

vonRasmussen :
Change the channel on the WAP or your router are on.
Not the 802.11?, but the transmission channels, which are probably transmitting on the same channel. I find the best results are at lease 2 numbers apart. if on is transmitting on channel 1 the next closest will be on 3. With multiple WAPs in a large area you would have to play Sudoko to make sure every one is 2 channels apart.
to quote Lisa Phifer:
Multiple access point configuration: Distinguish transmission signals;
Why should you access points use different channels? In a typical micro-cell Wlan, adjacent APs should always use non-overlapping channels, ( e.g., 1 ,6 ,11), to avoid co-channel interference.
Good Luck.
Dave

IPad's Roaming Between Access Points

A company with 460 Cisco Access Points is using iPad Mini's to control lighting and other things, the iPad Mini's are roaming between access points VERY SLOW, they are dropping 45-50 packets between roams. iPad 2's and iPhone's are roaming just fine, if they drop any packets it's a max of 5.
Is there any differance in the NIC's that are in iPad 2's and iPad Mini's? Or is there a setting for fast roaming?

Hi,
It seems that these APs are not aware of each other, I would suggest you look into a controller based solution, that means you need some sort of controller base AP system to get this seamless roaming feature, I also suggest you check whether there's compatibility
issue for the device with product vender.
Yolanda Zhu
TechNet Community Support

Roaming between 802.11a & g

Hi forum,
Can wireless clients roam seamlessly between 802.11a and 802.11g APs? they will be using the same SSID.
besides, if I select different channel for bluetooth clients, can it coexist with 802.11g?
Thank you,
paul

It is possible for a wireless client to roam between 802.11a and 802.11g.
Try this link:
http://www.cisco.com/warp/public/cc/pd/witc/ao1200ap/prodlit/index.shtml

Roaming between mesh and non mesh and mesh AP design

Hi There,
I need some verification on the following:
- Can client roam between Mesh AP 1550 series and Non-Mesh AP?
- I have 1550 series AP to be installed and all the mounting area are with data point ready, which connects back to switch. Would configuring mesh for this outdoor units recommended, and guide on this. Current guide i am looking from cisco site is basically the AP do not have wired ethernet connection, my design here a bit different, all the AP's have wired connection back to the switch.
Kindly assist.
Thank you
Rama

I have seen and done installs like this. The advantage is that you don't have to worry about the backhaul dropping. So it's like any LAP but big chunky outdoor AP. If the RAP looses Ethernet connectivity... Well it changes to a MAP. So you can look at
It as a benefit. It's always nice to be able to have Ethernet when you can.
Sent from Cisco Technical Support iPhone App

Extend the same WLAN using more WLCs

I have a bit of a question,
We already have one 50 AP WLC 4402 in our organization, and currently we have ran out of the 50 AP license. Issue is we want to extend the WLAN to another area but because of the 50 AP max on our WLC we are faced with getting another 50 AP WLC.
My question is can we extend the SAME WLANs using another WLC. I know it will work for the WLC fail-over but not sure if using another WLC will give us the mobility/roaming feature throughout the organization we want. Do we needto go for WCS as well in this situation to deploy organization wide roaming?. Basically is there a way to make existing WLC and new one act like the same WLAN with roaming throughout or will using two WLCs be separate roaming domains.
Please advice. Thanks.
Cheers
Lal Antony
www.lalantony.com

Hi Lal,
Yes it is possible and works awesome!! here is the mobility link which gives you more info as well.. but in short for your question that you have.. We can extend the WLAN and there is no problen at all..
http://www.cisco.com/en/US/docs/wireless/controller/7.0/configuration/guide/c70mobil.html
My other suggestion will be to go for a WLC which supports more APs.. so that in future if we wanna extend the network, then there wont be any issues..
lemme know if this answered your question..
Regards
Surendra
====
Please dont forget to rate the posts which answered your question and mark it as answered or was helpfull

How can i navigate via navigational link between views in different windows

hello
i am using CRM_UI and have opened a popup
gv_transcr_popup is a attribute referrring to if_bsp_wd_popup in my implementation class
gv_transcr_popup = comp_controller->window_manager->create_popup(
    iv_interface_view_name = 'AIC_CM_TRANS/AssignTranspReq' "#EC NOTEXT
    iv_usage_name          = 'CUBAssignTransporReq'         "#EC NOTEXT
    iv_title               = lv_title ).
get instance of BOL dynamic query
lo_qs = cl_crm_bol_dquery_service=>get_instance( 'BTQAIC_CM_TRANSPORTREQ').
gv_transcr_popup->set_on_close_event( iv_view = me iv_event_name = 'AssignTranspReq' ).
gv_transcr_popup->set_display_mode( if_bsp_wd_popup=>c_display_mode_surrounded ).
gv_transcr_popup->open(   ).
through the iv_usage_name i will open in this popup a search view from another window
in this window is a searchview implemented and now after selecting the line in the result view in want to navigate through outbound plug / inbound plug to the starting view .
but i get the exception
Target view AIC_CM_TRANS/TransportReq of the navigation is not assigned to the current window AIC_CM_TRANS/AssignTranspReq ( which is true)
now the question: how can i navigate between views of different windows?
Best Regards
britta

hi
i have found a way : you have to use a outboungplug from the windows interface ..then it is working
best regards
britta

How to improve client handover and roaming between AP's

Improving client Handover and roaming between APs
There are a few standards and methodologies available to use to improve handover of clients between APs. Most are focused on VOIP technologies, but it must always be remembered that we cannot control the client Handover (especially with legacy clients) we can only encourage them. Some Standards and methods work well for some environments and some do not - test the recommendations extensively before implementing in a live Production environment. It must also be noted that all settings take effect immediately once applied, however from a client perspective it might need to re-associate for the changes to take effect client side.
As with everything else in IT, if a perfect method/solution existed there would only be one - try them all and keep the best.
The Standards and Definitions
802.11k
IEEE 802.11k allows a device to quickly identify nearby APs that are available for roaming. When the signal strength of the current AP weakens and the device needs to roam to a new AP, it will already know the best candidate AP with which to connect to.
802.11r
IEEE 802.11r specifies fast Basic Service Set (BSS) transitions between access points by redefining the security key negotiation protocol, allowing both the negotiation and requests for wireless resources to occur in parallel.
When a device roams from one AP to another on the same network, 802.11r streamlines the authentication process. BSS allows a devices to associate with APs more quickly. Coupled with 802.11k's ability to quickly identify the target AP, BSS's faster association method may enhance application performance.
Handoff Assist
The AP monitors the RSSI for every associated client. If the RSSI for a specific client falls below "low-rssi-threshold" and continues to fall for the "rssi-falloff-wait-time", then the AP will send a de-auth to the client.
The de-auth is meant to kick the client away from the current AP and get it to re-authenticate to a nearby AP. This will have the effect of helping a client handover between 2 APs.
BUT (Big But), if the client gets de-authed and takes a while to re-authenticate (if it even does re-authenticate automatically after a de-auth), then this will have the effect of destroying communication instead of helping it -- mostly found with legacy clients.
Remove Lower Transmit Rates
Removing lower transmit rates is a way to promote better roaming, BUT not all clients respond well, or even respond to it.
The practice is that the basic rates are a subset of the transmit rates. If you only want to allow speeds 9 and up, you would select only the transmit rates of 9 and up, and the basic rates of 9 and 11. If a legacy client expects the rates of 1 and 2 it will not connect.
Local Probe Threshold
Local probe Threshold prevents a client from connecting to an AP with a too low a signal - helps more with initial connection than roaming.
The local probe threshold parameter is not supposed to force clients to roam as soon as they pass near an access point with a good signal, but rather to NOT hold on to an access point with a weak signal (avoiding sticky clients).
PMK Caching
Defined by 802.11i and is a technique available for authentication between a single AP and a station. If a station has authenticated to an AP, roams away from that AP, and comes back, it does not need to perform a full authentication exchange. Only the 802.11i 4-way handshake is performed to establish transient encryption keys.
Opportunistic Key Caching (OKC)
Is a similar technique to PMK, but not defined by 802.11i, for authentication between multiple APs in a network where those APs are under common administrative control. An Aruba deployment with multiple APs under the control of a single controller is one such example. Using OKC, a station roaming to any AP in the network will not have to complete a full authentication exchange, but will instead just perform the 4-way handshake to establish transient encryption keys
Implementation and Configuration
802.11k
802.11k is configured in your VAP profile. Tick the option to “Advertise 802.11k”. There after set the Handover Trigger Feature Settings.
Tick the “Enable Handover Trigger feature” and then set RSSI threshold by specifying the -dBm level at what the hand over trigger should be sent to the client
802.11r
802.11r is configured under SSID of your VAP profile. Tick the option to “Advertise 802.11r”
HandofF Assist
Station Handoff Assist is enabled in RF Optimization under the RF Management section of AP configuration.
Tick the “Station Handoff Assist” option to enable it, next set the Low RSSI Threshold – the threshold determines above what level no deauth gets sent
Lower Transmit Rates
Transmit rates can be adjusted in the Advanced tab of SSID under your VAP profile.
Remember that the basic rates are a subset of the transmit rates. If you only want to allow speeds 9 and up, you would select only the transmit rates of 9 and up, and the basic rates of 9 and 11
Local Probe threshold
Local Probe threshold can be adjusted in the advanced tab of SSID under your VAP profile.
Depending on the density of your APs consider values between 20 and 40 -- 40 being aggressive in an AP dense area.
Deny Broadcast Probes
Denying Broadcast Probes can cause problems with Roaming especially if the SSID is hidden – leave option disabled.

Hi, thank you for the helpful guidance. I have a basic question, if the device roam from one AP to another AP with the same SSID. Is there a need of re-authentication given a) the network uses EAP based authentication; b) the network uses MAC address authentication. If there is no need of EAP re-authentication, how the 802.11 keys are moved to the new AP. Thank you very much if you could help me clarify my thought.

Incompatibility between DW on different computer browsers

I'm a graphic designer / dabble a bit in DW / beginner coding skillset
In essence:
1) I'm working on a five button menu in a style that's commonly known as a "Mac (MacIntosh) Docker / Fisheye" effect.
2) On one computer it works fine in the IE browser.
3) I copy all related the files in order to place them on another computer.
4) Upon viewing the same file in the browser (both Fire Fox and IE) on this computer, the rollover effects do not work.
Any suggestions?

Thanks for the quick response.
This is but an experiment so it's not posted anywhere. The files are few so I've attached them (hope you don't mind).
For the few sites I create; I use a very easy WYSIWYG program called "Xara Web Designer". I create my pages there and every so often I like to slip in a special effect I find online. In this case it was a Mac Docker http://ndesign-studio.com/blog/css-dock-menu similar to this one. I tweak the code in DW; kind half-***, trial & error - nip & tuck while previewing in split screen / live view. When I like what I see I save it.
I go back to Xara and create a "placeholder" box and paste in the html code from the docker (created in DW) - hit preview in browser and voilá - no fuss no muss.
It's how I've done things up to know but this particular docker is giving me grief and I can't seem why.
NOTE:
In the past I've seen a .css file in the batch. In this docker there is none yet it looks fine in DW.
As I stated before; I'm strictly a graphic designer swimming in the deep end of the pool . . . with no floaties!
Any assistance is greatly appreciated.
Date: Wed, 15 Aug 2012 07:42:55 -0600
From: [email protected]
To: [email protected]
Subject: Incompatibility between DW on different computer browsers
Re: Incompatibility between DW on different computer browsers created by SnakEyez02 in Dreamweaver - View the full discussion
If you are using DW rollover effects did you copy over the Scripts folder as well with the Javascript files to make the rollovers work, or are you using CSS for the effects. If you are sure you have all the files please share the page with us so we can see it.
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Compare and validate values between fields on different objetcs

The main problem we are having right now is that we need to define a business's rule that compares two amounts between two different objects (in our case, account and custom object 3) and do a subtraction in order to check if the money amount value of the client is over zero to cover accidents with his insurance policy can cover the 100% of the accident or less but we need to assure that the money amount value can´t exceed the available amount (Monto Disponible).
An example is:
Object Account
Available Amount: 450,00$
Object Custom Object
Accident's Amount: 600,00$
Payment Amount: 600,00$
In this example we can’t give authorization to the medical institution since the total billed amount exceeds the available amount.(The Payment Ammount > Available Ammount so there is no auth.)
Can you tell us if this possible?. Can we make arithmetic operations between fields of different objects?.

Dragosd,
You can take Bob's suggestion and create a Webapplet that then displays your report information as a related item. I have a document I can send you if you need information on how to do this.
regards
Alex

Roaming between WLANs on different WLCs

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