WLC 4404 LAG Mode question

What port channel id does the controller use or how can I find out? I created the port-channel to the controller and enabled lag mode but the interfaces are not coming up. Any help would be appreciated. Thank you!

Hi Friend,
When you enable LAG on controller you have to reboot the controller first. Also when it is rebootting you have to go ahead and create channel-group on the switch ports which are connected to the controller and at the time when you define channel group you can define the group number.
Something like this
interface gig1/0/1
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
interface gig1/0/2
switchport trunk encapsulation dot1q
switchport mode trunk
channel-group 1 mode on
This will automatically create a port channel with number 1 and you can see the same using command "sh etherchannel summary"
HTH
Ankur
*Pls rate all helpfull post

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WLC with LAG mode enable connected to a switch HP in LACP mode

I am trying to connect a WLC 4402 5.0.148.0 mode with an HP 2800 switch. The switch is configured thunk mode with LACP protocol.
The WLC in LAG mode uses the protocol LACP? How can configure them switch HP?
Thanks.
Mirko Severi.

not supported, Mirko. Refer to this for further detail:
http://www.cisco.com/en/US/docs/wireless/controller/4.0/configuration/guide/c40mint.html#wp1186245

WLC 4404 %OSAPI-3-FILE_OPEN_FAILED

the WLC 4404 present this logs:
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-FILE_OPEN_FAILED: osapi_file.c:370 Failed to open the file : /proc/927/stat.(erno 24)
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-TASK_GETTIME_FAILED: osapi_task.c:3431 Failed to retrieve statistics (/proc/<pid>/stats) for task 'gccp_t'
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-FILE_OPEN_FAILED: osapi_file.c:370 Failed to open the file : /proc/926/stat.(erno 24)
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-TASK_GETTIME_FAILED: osapi_task.c:3431 Failed to retrieve statistics (/proc/<pid>/stats) for task 'dot1dTimer'
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-FILE_OPEN_FAILED: osapi_file.c:370 Failed to open the file : /proc/925/stat.(erno 24)
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-TASK_GETTIME_FAILED: osapi_task.c:3431 Failed to retrieve statistics (/proc/<pid>/stats) for task 'dot1dRecv'
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-FILE_OPEN_FAILED: osapi_file.c:370 Failed to open the file : /proc/921/stat.(erno 24)
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-TASK_GETTIME_FAILED: osapi_task.c:3431 Failed to retrieve statistics (/proc/<pid>/stats) for task 'fdbTask'
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-FILE_OPEN_FAILED: osapi_file.c:370 Failed to open the file : /proc/920/stat.(erno 24)
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-TASK_GETTIME_FAILED: osapi_task.c:3431 Failed to retrieve statistics (/proc/<pid>/stats) for task 'nPCSL_timer'
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-FILE_OPEN_FAILED: osapi_file.c:370 Failed to open the file : /proc/916/stat.(erno 24)
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-TASK_GETTIME_FAILED: osapi_task.c:3431 Failed to retrieve statistics (/proc/<pid>/stats) for task 'tFrameReceive'
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-FILE_OPEN_FAILED: osapi_file.c:370 Failed to open the file : /proc/913/stat.(erno 24)
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-TASK_GETTIME_FAILED: osapi_task.c:3431 Failed to retrieve statistics (/proc/<pid>/stats) for task 'tFrameReceive'
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-FILE_OPEN_FAILED: osapi_file.c:370 Failed to open the file : /proc/917/stat.(erno 24)
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-TASK_GETTIME_FAILED: osapi_task.c:3431 Failed to retrieve statistics (/proc/<pid>/stats) for task 'tFrameSend'
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-TASK_GETTIME_FAILED: osapi_task.c:3431 Failed to retrieve statistics (/proc/<pid>/stats) for task 'Gmac Link Task'
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-FILE_OPEN_FAILED: osapi_file.c:370 Failed to open the file : /proc/905/stat.(erno 24)
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-TASK_GETTIME_FAILED: osapi_task.c:3431 Failed to retrieve statistics (/proc/<pid>/stats) for task 'tDapiTxTask'
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-FILE_OPEN_FAILED: osapi_file.c:370 Failed to open the file : /proc/904/stat.(erno 24)
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-TASK_GETTIME_FAILED: osapi_task.c:3431 Failed to retrieve statistics (/proc/<pid>/stats) for task 'RMONTask'
*osapiReaper: Oct 02 14:55:11.152: %OSAPI-3-FILE_OPEN_FAILED: osapi_file.c:370 Failed to open the file : /proc/903/stat.(erno 24)
when present this loggs the device present those symptoms:
lost GUI session
Lost console conection
Lost SSH and Telnet conecction
the WLC 4404 not work is stopedd

Almost looks like it could be defect ID CSCtx02515. SHows that it's fixed in 7.2.110.0, but if you have a 4404, you can't run 7.2 code.
Symptom:
High CPU on webJavaTask
Alternatively: large number of TCP connections, leading to file descriptor problems like:
osapi_file.c:370 Failed to open the file : /proc/1054/stat.(erno 24)
http://tools.cisco.com/Support/BugToolKit/search/getBugDetails.do?method=fetchBugDetails&bugId=CSCtx02515
HTH,
Steve
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Wlc ha maintenance mode

We have 2 wlc 5508 with software 7.5.102.0, both wlc have 25 AP license.
We try to setup HA SSO but 1 wlc in maintenance mode: Maintenance cause= Incompatible Software license
Could you help me ?
thanks.
============== Primary controller===========================
(Cisco Controller) >show redundancy summary
            Redundancy Mode = SSO ENABLED
                Local State = ACTIVE
                 Peer State = UNKNOWN - Communication Down
                       Unit = Primary
                    Unit ID = BC:16:65:F9:19:60
           Redundancy State = Non Redundant
               Mobility MAC = BC:16:65:F9:19:60
Redundancy Management IP Address................. 192.168.11.11
Peer Redundancy Management IP Address............ 192.168.11.12
Redundancy Port IP Address....................... 169.254.11.11
Peer Redundancy Port IP Address.................. 169.254.11.12
(Cisco Controller) >
(Cisco Controller) >show interface summary
Number of Interfaces.......................... 5
Interface Name                   Port Vlan Id IP Address      Type    Ap Mgr Guest
management                       LAG 30       192.168.11.9    Static Yes    No
redundancy-management            LAG 30       192.168.11.11   Static No     No
redundancy-port                  -    untagged 169.254.11.11   Static No     No
service-port                     N/A N/A      0.0.0.0         DHCP    No     No
virtual                          N/A N/A      1.1.1.1         Static No     No
============== Secondary controller===========================
(Cisco Controller) >show redundancy summary
            Redundancy Mode = SSO ENABLED
                Local State = MAINTENANCE
                 Peer State = UNKNOWN - Communication Down
                       Unit = Primary
                    Unit ID = F8:72:EA:EE:86:60
           Redundancy State = Non Redundant
               Mobility MAC = F8:72:EA:EE:86:60
Maintenance Mode = Enabled
Maintenance cause= Incompatible Software license
Redundancy Management IP Address................. 192.168.11.12
Peer Redundancy Management IP Address............ 192.168.11.11
Redundancy Port IP Address....................... 169.254.11.12
Peer Redundancy Port IP Address.................. 169.254.11.11
(Cisco Controller) >
(Cisco Controller) >
(Cisco Controller) >show interface sum
Number of Interfaces.......................... 5
Interface Name                   Port Vlan Id IP Address      Type    Ap Mgr Guest
management                       LAG 30       192.168.11.10   Static Yes    No
redundancy-management            LAG 30       192.168.11.12   Static No     No
redundancy-port                  -    untagged 169.254.11.12   Static No     No
service-port                     N/A N/A      0.0.0.0         DHCP    No     No
virtual                          N/A N/A      1.1.1.1         Static No     No

In order to use a WLC that has a license as an HA WLC, you need a minimum of a 50 AP license.
http://www.cisco.com/en/US/products/ps10315/products_tech_note09186a0080bd3504.shtml
If you want to convert any existing WLC as a Standby WLC, do so using the config redundancy unit secondary command in the CLI. This CLI command will only work if the WLC which is intended to work as Standby has some number of permanent license count. This condition is only valid for the 5500 WLC, where a minimum of 50 AP Permanent licenses are needed to be converted to Standby. There is no restriction for other WLCs such as the WiSM2, 7500, and 8500.
Sent from Cisco Technical Support iPhone App

Wlc 4404 upgrade

Hi, looking for advice on which code to upgrade to. We have a wlc 4404 using mostly AIR-AP1231G-A-K9 access points. The current code is 4.2.130.0. We would like to use some of the 1141 APs and I understand they need at least 5.2. My plan would be to go to 6. I believe I need to go to 4.2.176.0 first and then to 6. The question would be what version of 6 would be the best? Right now 6.0.182.0 (ED), 6.0.188.0 (ED), and 6.0.196.0 (ED) are available.

Well that is a tricky question and really depends on a lot of variables. We have installs with all three versions of the software. Currently I would have to say that 6.0.188.0 is one to try. We have upgraded some clients to 6.0.196.0 because of issue with the 6.0.188..0, but again, it all depends what equipment you have and if you see any issues with the 6.0.188.0. Some people I know have just went right to the 6.0.196.0 code and have not seen any issues. The 6.x is still pretty new in my book, but like you already did..... review the caveats on the different versions and if you have a spare WLC,do some testing.

Wlc 4404 strange behaviour

Hello,
I have to manage a wlc 4404. According to me he acts strange.
Only ports 1,2 and 3 are connected. The ap-manager and the management are linked at port 1. So far so good.
If I look at the wireless-tab I see all AP's are connected at port 3 !!
All the 3 ports are connected to the same switch and VLAN.
AP=Cisco Aironet 1130AG with a default config
Could someone explain me why all AP's are connected on port 3, while the ap-manager is linked at port 1.
Thanks in advance,
Carlo

The Cisco docs clearly state that you can only have 48 APs associated to each ap-manager interface. If you are not running LAG, and I can't think of a good reason not to, then you will need 3 physical interfaces to be configured with unique ap-manager ip addresses in order to register 100 APs. Since the APs point to the management ip (via DNS or DHCP) to get the ap-manager interface, they will automatically load balance.
Note that unless you are running VERY recent code, there are significant ARP bugs related to the additional ap-manager interfaces responding to ARP requests. The best-practice is to add a static ARP entry in the router/L3 switch that is the ap-manager's default-gateway. This is an artifact of the ap-manager interfaces not responding to any traffic accept LWAPP, including ARP. This has been a serious problem for a lot of enterprise customers because this impacts most CEF switching devices like the Catalyst 6500 since most IOS versions also have a CEF adjacency/ARP timeout bug.

WLC 4404-100 with CAP1550E

Currently I have a WLC 4404-100 and 96 nos. LWAP 1250 installed at site. I need to add CAP1550E (4 Nos.) to this existing setup. Out of this CAP1550E, 2 needs to be configured as root, and the remaining 2 has to be connected through 802.11a/n backhaul and meshed.
Can I achieve this scenario, without adding a new controller??
Thanks to all in advance.....

jerrick,
Yes you can. Mesh and non-mesh functionality has been merged for quite some time now. Use more recent code (7.0.x) or higher for best results.
If you are unfamiliar with configuring mesh, consider spending some time scanning the 7.2 mesh design guide. Mesh works a little bit differently than your traditional local-mode APs and you need to do some additional configuration on the controller to tune it to your environment.
7.2 Mesh Design Guide: http://www.cisco.com/en/US/docs/wireless/technology/mesh/7.2/design/guide/MeshAP_72.html
One thing the guide doesn’t say (I don’t think): Get it working on the ground first, then hang your APs. It will save you a lot of time and frustration.
Justin

Wlc 4404 and high avaibility

If i have 2 WLC 4404 that support 100 Access Points for one and i have installed 110 Access Point, can i you decide when a WLC go down which are the 10 Access Point that must stay down?
thanks for your help
fcostalunga

Let me understand your question.
You have two WLC and each can support 100 AP. You have 110 APs. If one of the WLC should go down, how can you configure or tell which 10 AP's will be unable to join?
If this is your question, here are some solutions I can think of.
1. H-REAP. If you enable H-REAP to all your AP's, when one or ALL of your WLCs should go down, the AP's will be able to operate as if the WLC were up. The exception-to-the-rule is DO NOT reload the AP's and this should be fine.
2. You can configure, via CLI only, 100 AP's the primary and secondary controller. 10 AP's will have no config so they will go into "limbo".
Hope this helps.

WLC 4404 bandwidth management

Hi ...
I have a WLC 4404 installed and we would like to manage the bandwidth per SSID.
Today we have configured many SSID because our campus has a lot of wireless users and any SSID has only one class C subnet (/24).
We would like to configure each SSID with more subnets.   is this possible ?
Additionally we need to restrict the bandwidth per SSID. is this possible ?
We have some SSID for less important users and we would like to assign the bandwidth per SSID.
Thanks for your help.

Yes with the WLC you can go in and create bandwidth limitations, that are either linked to a user profile, or you can link them to a QoS Profile.
If you link to the QoS Profile, say Bronze, then all you need to do is set the Guest WLAN to be in the Bronze Profile in QoS. If you want to allow certain users to get more than "x" bandwidth, you would do it to a user profile.
   ******Either way you do this, it only rate limits from the WLC down. ****** It is still possible to saturate a link from the edge to the WLC. So you may want to do some traffic shaping at the edge.\
     For the multiple subnet questions, yes you could do that as well.. You'd want to create the interfaces for the new subnets, then use AP groups to link the SSID to a different interface, all based on the location of the AP
Cheers,
Steve
If this helps you and/or answers your question please mark the question as "answered" and/or rate it, so other users can easily find it.

What settings need to be set for the fastest roaming on my wlc 4404

Hi all
I notice that on my WLC 4404 when walking around with my laptop, I am dropping pings when it roams to another access point, Is there anything on the controller I need to check, and can I optimize these settings for roaming?
cheers
carl

Hello Carl,
to have romaing working fine you need to be sure of following:
1) RF designed correctly , and enough overlapping is availble between the AP's.
in addition for environment to be free from external noise..
this can be confirmed with spectrum expert site survey
2) what authentication and encryption used ( WEP , or WPA-PSK no need to check this point ->> skip :-) )
if you are using any authentication like 802.1x ->> then enable CCKM on the WLAN to make more seamless roaming.
3) if more than one WLC availble on site , configure mobility group between them,
so if client roam from one AP in WLC 1 to AP on WLC 2 ->> no disocnnection observed....
Kind regards
Talal
===========
please rate answers that you find useful , and mark as answered - when it is :-) - so others can find it easily

WLC 4404 Wireless users getting disabled

Currently Being Moderated
Wireless users getting disabled
Hi,
I have WLC 4404 with 7.0.116.0 version. I was getting following messages for particular APs
*Dec 20 14:11:13.875: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Dec 20 14:11:13.908: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up
*Dec 20 14:11:29.383: %LWAPP-5-RLDP: RLDP stopped on slot 0.
*Dec 20 14:11:29.674: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to down
*Dec 20 14:11:29.678: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Dec 20 14:11:29.700: %LWAPP-5-RLDP: RLDP started on slot 0.
*Dec 20 14:11:29.707: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up
*Dec 20 14:11:29.752: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to down
*Dec 20 14:11:29.757: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Dec 20 14:11:29.790: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up
*Dec 20 14:11:45.396: %LWAPP-5-RLDP: RLDP stopped on slot 0. *Dec 20 14:11:13.875: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
After seeing one of the cisco forum, I have disabled RLDP for that particular APs
so above messages are rectified.
But right now we are not able to identify Rogue IP and it is not contained.
So please give any suggetion so that i can rectify the above messages as well as i can identify the rogue IP.
Thanks & Regards
Gaurav Pandya

Hi Scott,
You are right i am not able to detect rogue APs because i disabled the RLDP. but when i enable the RLDP for that particular AP. i got the following messages with interface go up and down
*Dec 20 14:11:13.875: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Dec 20 14:11:13.908: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up
*Dec 20 14:11:29.383: %LWAPP-5-RLDP: RLDP stopped on slot 0.
*Dec 20 14:11:29.674: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to down
*Dec 20 14:11:29.678: %LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
*Dec 20 14:11:29.700: %LWAPP-5-RLDP: RLDP started on slot 0.
So please suggest me the mid way so that i can enable the RLDP (Detect the rogue APs) with out interface going up and down frequently.
Regards
Gaurav

Wireless clients load balancing on the APs on WLC 4404

Hi Experts,
I'm just wondering if the WLC 4404 with firmware 4.2.207.0 can load balance the wireless clients on different WAPs. Let's say that an AP is already handling 15 Wireless devices. When the 16th is trying to join, the controller somehow puts it on another nearby AP, even the signal from this AP is weaker. I heard the similar feature on other Wireless solution vendors. I'm just wondering if Cisco has the similar feature or not.
Thanks!

Yes it is known as aggressive load balancing sending a code 17 making the wireless client to loook at another nearby AP.
here it is the documentation:
http://www.cisco.com/en/US/products/ps6366/products_tech_note09186a00809c2fc3.shtml

Need Information of cisco WLC 5508 LAG Interface

HI
We have cisco WLC 5508 in our network and right now ,this WLC is connected to two ports of each core switches.Both CORP and GUEST SSID are configured on this WLC.
Now we want to segregate the trafffic og GUEST to on core switches from WLC. SO my question is ,how can we achieve this without using guest anchor controller ?
Can i use one interfcae cisco WLC 5508 and connect it to the firewall or any device ?
Thanks
Puneet

Hi
Thanks ...I am using WLC as a DHCP server for Guest.
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my topology is here...
Corp network and management network are reachable however management metwork is not pinagble from guest netowrk.

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Does anyone know of a way to clear the load balancing statistics from a WLC 4404? I've looked through the gui and CLI and can't seem to find a way to do it.
Thanks,
Rob

You can do a 'show summary' to see the number of connections that have been sent to each servers.
You can't see the number of bytes so.
I would suggest to collect this info on the server.
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Gilles.

Replacing WLC 4404 with 5508

Hi Friends,
I am new to Cisco wireless and would appreicate any help with replacing WLC 4404 with 5508. I mean any link or doc (best practices).
Thansk,
Nav
[email protected]

Yup, what said Scoot said .. Add the 5508 to the aps high availability. If you have WCS/NCS you can push this to the APs.
"Satisfaction does not come from knowing the solution, it comes from knowing why." - Rosalind Franklin
‎"I'm in a serious relationship with my Wi-Fi. You could say we have a connection."

WLC 4404 LAG Mode question

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