Cisco Wireless :: 5508 - Replicating Between Controllers Automatically Without HA?
Jun 11, 2013
We have 2 Cisco 5508 WLCs, each wtih 50 licenses. What I would like to do is split the 50 odd APs between the 2 controllers load balancing the traffic. If a controller goes down or there is a break in the path all APs would failover to their configured secondary controller. So far so good.
However there seems to be no way to 'replicate' the configurations between controllers unless I setup HA , but as I understand it HA is Active /Passive, so essentially, unless you get a failover situaltion, completely 'redundant'.
Is there a way or either replicating between controllers automatically with out HA, or is there a way of making HA Active / Active?
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Dec 6, 2011
Our controller get freezing every week at least twice, and do not know what is the reason. I am attaching the log for you to look at it. Last time happened was yesterday at around 13.00 pm.
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Mar 10, 2013
I am setting up two 5508 controllers, one in HA mode, and one the primary for the remote sites in question. I plan to have these units service wireless for MPLS conected regional sites (each with their own local subnet). I was planning on using the cabled hosts network in each site for the wifi addressing and was thinking a different addressing for Guest Access, is this common? I'm obviously concerned with guest access clients but don't know enough how their trafiic is segregated from normal wifi traffic.
Also, when I stand up the controllers the management interface and ap-manager won't be in the same network as where the hosts or LWAP's will reside (routing access will exist though).
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Sep 1, 2011
I have two 5508 and one WCS server, the controllers are in one mobility group.Now I have to change the management IP addresses on the controllers. What are the correct steps to do this?
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Aug 12, 2012
I'm looking into upgrading our 4400 series controller to 5508's. Currently we have a few sites that have 8-9 4404 100AP controllers and I'm looking to condense these down to either 3 5508-500 or 5 5508-250 depending on cost. I'm wondering what a good port to AP ratio is for controllers with licenses that can handle over 100 AP's. I know the general rule of thumb is 25 AP's per port, but that seems to me to be 4400 way of thinking. I'm trying to also reduce the controllers overall footprint, i.e. ports on the uplink switch, power consumption, rack space etc.
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Aug 28, 2012
I am planning to move our WLC's (5508) from a branch site to HQ so that all branch site APs will just report centrally in the HQ. There are two WLCs working as Active/Standby. Plan is to move one then the other. I am not really inclined with wireless.
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Aug 1, 2012
--- I have 2 WLC's 5500 that I have to set up on my network with the same configuration except I am not sure that they can be load balanced.
-- My only thought is to take a full class C and on each WLC set up a /25, thus each device can provision 120 IP's
--- This seems a bit archaeic, but is there anything else smarter to do? Can they be load balanced?
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Jun 21, 2012
We are installing a set of 5508 controllers at one site in Tennessee. At another divisional site we have another controller that covers that division.
Both sites utilize the same DNS structure and would like to use the DNS entry CISCO- CAPWAP- CONTROLLER entry for bringing new AP onto the controllers at their sites, how would we go about configuring this?
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Feb 14, 2013
I have two 5508 WLCs. Both have APs attached to them. If I create a guest account with the lobby administrator on one, will that user account be able to log in to the network if the client is attached to the ohter WLC? So far, I have found that I need to create the same user on both WLC's, in order to have the user login.
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Nov 10, 2011
Just recently upgrade our 2 5508 controllers from 6.0.199.0 to 7.0.116.0. Since that upgrade, I have a handful (8 to 10) of wireless laptops that now refuse to associate to any access points. The thing these laptops all have in common is some variation of the Intel Wifi Link AGN cards. I have about 200 other clients out there working just fine.
I've tried everything under the sun that I can think of. Patches, drivers, the whole sh'bang.
Is there a known issue with 7.0.116.0 and these particular cards?
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Apr 7, 2013
Is there any way to configure a wired guest network with a combination of 5508 and 2504 wireless controllers? I am aware that the 2504 does not have wired guest functionality, however is it possible to set up a wired guest on the 5508 and using mobility anchors, transmit the l2 information through eoip to communicate with the remote vlan?Home built NAC solution, using 802.1x authentication on switchports for public areas. If user is an employee, communicates with the supplicant on their machine, and places them on an internal vlan.If user is a guest, user fails 802.1x check and is placed on a "guest" vlan with an ACL and external DNS.If placed on the guest vlan, the user has to accept a terms of use form.This is working currently with our 5508s without any issue, however we have some remote offices we'd like to roll this out to that are using 2504 controllers. I'm hoping there's a way that I can use the 5508 as an anchor or vice versa to make this work.
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Mar 28, 2012
Currently in the process of migrating from psk to 802.1x radius environment using a mix of 4400 and 5508 controllers with WCS using Microsoft ias. The problem I have is there is a lot of shared iPads and tablets in the environment. Is there a way to force these user to relogin to radius after a certain time period so they are not sharing unames and passwords?
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Feb 8, 2012
I have a WCS, four 5508 controllers, Cisco 3750X switches, and both autonomous Cisco 1200, and LightWeight 3502i in service.The problems I am having, is that some of my Access Point reset for no apparent reason, and I get alerted by my NMS.When I look at the switch port, that connects an access point that reported down, I see the POE switch port went down and back up in 4 seconds, just long enough for the access point to reset.There are no errors on the switch port(s). No cable or speed/duplex issues. Switch IOS: c3750e-universalk9-mz.122-55.se1
There are no other pertinent entries in the switch log. Just that the port went down and then back up. Always in 4 seconds.When a reset happens the WCS reports on the access point: '802.11/b/g/n' interface of AP associated to controller 172.20.0.x is down. Reason: Indicates that while the radio state should be updated on controller, no reset should be reported.But nothing else, except that the radio came back up.
This is happening two or three times a day, and rotates. It seems that it never happens at the same time of the day, or the same access point, or the same switch. (I have over 1000 access points and 500 switches in service)I am curious if the WCS is automatically resetting the access point radios, which is causing the switch port to go down/up?And if so, is it possible to turn off the automatic reset?
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Jun 5, 2013
Please find attached a simple BYOD/ISE document I uploaded to kick start my new Wireless setup. Its all configured on my ISE sever and Controller as per doc.My setup:
-3600 AP's
-Internal 5508 Controller
-DMZ 5508 Controller (acts as a DHCP server for wireless clients)
Controllers have established connectivity (mobility acnhors), as a client I can connect fine to my new SSID get a DHCP IP address back from DMZ WLC and at the moment can connect out to the Internet fine (using no WLAN Security as a test). So this part is working.I have now followed the document configured ISE, enabled AAA on the Internal WLC only and used the AAA override setting on WLAN as in the attached document.I connect to SSID expecting to be redirected to my ISE Guest Portal, nothing happens other than connecting to Internet WebPages.My question is, if I have followed this document correctly why is the Internal WLC not redirecting client requests to ISE, is this because my mobility anchors need to be re-configured, perhaps the AAA/ISE config needs to be applied to my DMZ WLC not internal WLC?
I would prefer the Internal WLC to redirect the login to ISE, doesn't make sense to traverse through the DMZ Firewall onto DMZ WLC back into the Internal Network again to the ISE to authenticate.Or am I missing something additionally to this document to make sure clients are directed to the ISE Guest portal login.
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Apr 16, 2013
We have a Cisco 5508 controller with 1142 LWAP's running version 7.4.100.We have several Dell laptops which will not associate to the access point UNLESS you stand directly underneath it, power off the wireless, turn it back on then eventually the PC will associate to the AP.Once the PC is associated to the AP and user is authenticated then all is well.
Have tried updating the wireless drivers downloaded from both Dell or INTEL. This does not happen to all of our laptops. However, without making any changes to the WLC or the PC's, we have begun to expirence this problem with laptop which previously did not have this issue.
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Jan 28, 2012
I have 2 x Redundant Guest Anchor Controllers (5508) located in 2 separate Data Centers with all the management and guest user VLAN spanned between two. Everything is working fine with the Guest WiFi access except the DHCP functionality as the Controllers are acting themselves as the internal DHCP Servers.
This is how I tried to distribute :
network. 10.1.0.0/23
gateway: 10.1.1.254
Controller 1, DHCP Server pool: 10.1.0.2 - 10.1.0.254 Gw: 10.1.1.254
Controller 2, DHCP Server pool: 10.1.1.2 - 10.1.1.254 Gw: 10.1.1.254
As the user load balancing between the Anchor Controllers cannot be controlled (i.e. they are active/active), the same client sometime getting 2 different IP addresses from both the Controllers (as they do not talk to each other in terms of DHCP) hence depleting the pool addresses.
I guess one way of solving this is to just run 1 DHCP server in one of the controllers but that defeats the purpose of having N+1 Controllers. Is there a better way of doing the DHCP load balancing and having full redundancy at the same time?
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Oct 17, 2012
I am trying now to deploy the setup that works on some APs and doesn't work on others.
For example, on an AIR-AP1231G-A-K9, the following setup works:
!
version 12.3
no service pad
service timestamps debug datetime msec
[Code].....
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Jan 24, 2013
I want to prevent guest from doing peer - peer communication on my Guest (5508) controllers. Is this a feature on the WLC or only by applying an ACL on the router interface?
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Jun 5, 2011
I have this firewall working as active/standby. Everything seemed to be ok, but we noticed that confirgurations are not being replicated by saving configuration either copy run start or write. The workaround here is write standby command. Below the configs and stats, plus the show version, which is the same in both equipments:
Header 1
failover
failover lan unit primary
[Code].....
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Nov 11, 2012
I discover an issue with my CISCO ASA 5550 because I'm looking at the vlans that I have configured and some vlans on the Stand by device had not an IP address configured, checking the configuration of the failover
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Feb 8, 2012
I have two switches, a 2960 (sw01) and a 2948 (sw02). The sw01 is trunking via dot1q on Gi0/24 to sw02 on 2/48. Why are VLANs 2-4 not active on sw02?
sw01#sh int Gi0/24 trunk
Port Mode Encapsulation Status Native vlan
Gi0/24 auto 802.1q trunking 1
Port Vlans allowed on trunk
Gi0/24 1-4094
[code].....
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Jan 18, 2012
We have 2 ASA 5510's running in a Active/Standby configuration. It appears that most of the changes we make on the active unit are replicated to the standby unit. However, there are 3 AnyConnect Client Profiles on the active unit and none of them show up on the standby, the standby has no AnyConnect Profiles. We also have 1 OnConnect script on the active unit and it does not appear on the standby unit either.
I was under the assumption that all config items on the active unit would replicate to the standby. Is this not correct? Do I need to do something extra to get everything replicated? Are there other items that do not replicate?
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Sep 9, 2012
I have been tasked by my boss of finding out and implementing a solution of building GRE tunnels from 2 4408 Wireless controllers system for a guest wireless network. I am but a low CCNA wireless, working on getting motivated for CCNP wireless, but I didn't even know if this was possible and if it was where to begin. I have been reading configuration guides but figure I should ask the wireless experts of the world of Cisco.
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May 2, 2013
I am read this cisco document Cisco Catalyst 3850 Switch Services Guide
[URL]...
which describe that
L2 roam occurs when the user roams from an access point connected to its controller to a different access point connected to another controller, where the two controllers are L2 adjacent to each other.
L3 roam occurs when the user roams from an access point connected to its controller to a different access point connected to another controller, where the two controllers are L3 adjacent to each other.
so what exactly this mean the two controllers are L2/L3 adjacent to each other , what is the different between them.
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Aug 6, 2012
I am configuring two 2504 controllers, which I ordered together, however they run different software versions and I don't have a contract/ login to download wlan controller software from the Cisco website. The one with the newest version runs 7.2.103.0 while the other one runs 7.0.220.0 I want to run them together in the same subnet and use them for redundancy (10 AP's will connect).
Is there a way I can download the software from the controller, just like I am able to do with an ASA firewall? Then I can upload it to the controller with the older software version.
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Oct 11, 2012
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?
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Jun 9, 2012
If we have 2 Cisco 2504 series wlcs and use multicast features in both and both are primary and secondary for LAPs. what about of we use multicast ip address let's say 255.239.1.60 can we use the same ip address for the secondary controller too or we should use any other ip ?
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Aug 23, 2012
I have 2 WLAN controllers, a 4400 series and 5500 series controller. The 4400 series has 100 seat limit on it, with 74 Access Points currently connected. The 5500 series has a 250 max, but we bought it with only 50 licenses, and it is max'd out at 50.The 5500 controller is the controller that has a DNS entry so that the Access Points will know to find that controller as they're being added. BUT, because we've reached our limit of 50 licenses, I'd like to be able to set the 4400 series controller to be the controller that new Access Points try to connect to. By going back to the 4400 as the controller that new Access Points connect to buys me time to plan for more licenses on next years budget for the 5500 controller.
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Jan 22, 2013
Every time I power down my WLC2504 controller and then back up, the time reverts back to the year 2000.The APs can't join the controller, due to certificate errors, until I reset the clock. This problem just started recently.
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Apr 3, 2013
Having performance issues running two 5508 controllers on the same network? One is running 7.3.101.0, the other is running 7.0.98.0. The legacy APs are connected to the WLC on the older code to support older hardware. The new WLC is accepting all the new 3600 APs. Once all legacy APs are replaced, the 5508 on old code will be disabled.
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Mar 19, 2013
I want to download the Cisco 2500 Series Wireless Controllers Release 7.3 Software AIR-CT2500-K9-7-3-112-0.aes.I have CON-SMB for it, when I try to download it I am not to download it. I have mentioned the message given by Cisco" The category for this contract does not include the feature or the benefit for software download that you are requesting at the moment, this means that even if the contract is a support assistant (8X5XNBD) does not support the the mentioned feature for you to update the device you need, please refer to your partner directly to be able to acquired a Cisco Service Contract that supports and include the software download feature to be able to upgrade and update your device as you need."Is there any seprate contract for downloading the Software.
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Apr 12, 2012
Does 2500 series wireless controllers support redundancy?
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Jan 18, 2010
I've read some opinions that lowering the RTS threshold can facilitate in some noisy wireless environments. I have found how this can be done on standalone APs but cant seem to implement the change on a WLC 2112. How to do it.
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