Cisco :: 5508 - High Bandwidth Consumption For APs To Controller Communications
Mar 24, 2013
We own a Wifi controller 5508, with many access points connected to him. Except on the site where the controller is installed, all other APs are configured in FlexConnect mode through our MPLS network to prevent roundtrip for local communications (local client to local server for example).
Because of important slowness on one site where 8 APs are installed, we captured the traffic going in and out of our MPLS router and we discovered that the APs are consuming about 150kbits/s each in one-way communications with the controller (controller to APs), even when nobody is present (the capture was done this sunday).
Could you confirm me if this behaviour is normal or not ? What could explain such a large amount of data between the controller and the APs ?
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Feb 18, 2013
I will install next week at a customers side a new Pair of 5508 Controller. They have at the moment one old 4404 with about 70 APs.So the bought the new 5508 with HA Pair.For the HA i will need 7.3 i read in the High Availability (AP SSO) Deployment Guide.There are now two 7.3 Versions, or i can choose the new 7.4 Version.
AIR-CT5500-K9-7-3-101-0.aes
AIR-CT5500-K9-7-3-112-0.aes
AIR-CT5500-K9-7-4-100-0.aes
So what software version will be the best at the moment?I will install also a Cisco Prime Infrastructure on a ESX host.For the 7.3 in can use the 1.2 , but for the 7.4 i must take the 1.3.
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Nov 27, 2011
I currently have a 2851 router with 2Mbps point-to-point leased circuit on its serial interface and most of the time its congested. Any tool for measuring the current consumption that is happening on the link other than netflow.Was looking for something for a graph or chart displaying the current consumption rate.
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Sep 18, 2012
My company is composed of three different campuses, all with a similar network topology. We currently are experiencing high bandwidth on our serial interface at one of the campuses in particular. The network is composed of about 20 VLANS routed internally using a Cisco 6509. Traffic to the outside is PAT’d by an ASA 5510 and then forwarded through our edge router interface. Each VLAN is PAT’d to a specific public address.Due to the PAT, how would you recommend determining what specific private addresses are consuming our resources on the serial interface. When I look at our NMS, it reports the public address, but that only narrows it down to a VLAN. For example, all the devices in VLAN 6 are translated to 146.34.118.245, and 146.34.11.245 is a top talker.
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Apr 20, 2011
im using a intel mother board desktop pc and windows xp. i was tray to add external wireless modem .the modem drivers already install successfully but its not working properly it working only 1st 5 to 10 minute.my pci simple communications controller also not installed
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Apr 1, 2012
how to download pci simple communi..... for dell laptop
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Nov 2, 2005
Just got a D610 with no drivers cd. Rebuilt the laptop with TxDOT image and now I get a message found new hard ware pci simple communications controller. Where can I get this driver at?
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Dec 9, 2005
I'm searching for a driver for the PCI Simple Communications Controller for an Dell Optiplex GX110 that is running Windows XP Home edition.
I have installed a Dynex data/fax/voice modem that supports Windows XP, but the system does not recognize it because of the drivers needed for the PCI controller.
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Aug 12, 2012
I know that the 3600 series APs are not supported on the 4404 WLC. However, would the following scenario be supported? I would like to use the 4404 (software rel. 7.0) as a guest anchor with a 5508 (software release 7.2) as the foreign controller supporting series 3600 APs. I ask because the APs do not need to join the guest anchor.
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Jun 2, 2013
We have a customer that have 2 5508 as primary and backup controller and a 4400 as an anchor controller. We plan to upgrade the 5508 to 7.3.112.0 and the 4400 is already 7.0.116.0. Will there be any issue if the anchor controller is not the same code as the foreign controller? Do I also have to upgrade the acnhor controller to 7.0.240.0?
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Aug 14, 2011
Over the last couple of weeks I've been noticing high amounts of jitter and latency over my home network. I've come to some conclusions but am not 100% sure if they are correct or not.When one computer on the network opens a web page, loads a video off youtube or downloads something all of the computers on the network have considerably increased latency for a short period.I've tested 3 computers over WiFI watching ping commands and will show some below in a moment. Tested 1 computer using ethernet to connect to the router and its still affected by the issue. Ive also actually used the router to ping an outside source while the ping is increased and this is also affected. This has only been happening for the last 2 weeks.
Heres a list of hardware being used/software and os.
Windows 7 with a Belkin G enabled usb NIC
Windows XP with a realtek rtl8139/810x
Windows 7 (Friends laptop)
Router = Netgear dg834g
Settings
[code]...
So I've read up on QoS and understand that my router doesnt support it but I still dont understand how 1 person using youtube can affect my network that much. As before 2 weeks ago it did not affect it what so ever, and it didnt in my old house either. So what this means is that browsing is fine on the network, just whenever you try and play a game or anything that requires low latency anyone touching the network means you get massive jitter.
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Sep 18, 2011
I am working as net admin which is i need to monitoring and manage my workplace network( education center )I got a few question about network traffic flow. Here is the issued.I got high bandwidth utilization so high after office hours which is only on night. as we know, after office hours there is no person at the office but the traffic flow on bandwidth utilization is high.what are the possibilities of this issued?
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Dec 9, 2012
I have decent Bandwidth, high download speeds (25.67mbps) low ping(16ms) And okay upload speeds (4.47mbps). I usually browse Reddit and my father usually plays CoD. The problem is, whenever I try and download anything, his game slows down to where he gets kicked from the room.
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Jul 11, 2013
I'm trying to debug a latency / bandwidth issue with 2 servers ( DELL 860 ) connected by infiniband. Servers use 10Gb cards connected on a MTS2400, here are the result for bw and latency: [code]
Are those values 'normal'? I was hoping to get more bw and less latency.I'm using CentOS 6.4 with ib_ipoib driver, it's using stock settings.
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Jan 13, 2013
Region : Romania
Model : TL-WR841ND
Hardware Version :
Firmware Version : 3.13.27 Build 121101 Rel.38183n
ISP : cosmote
hardware version is WR841N v8.wireless works just fine. i use it for my smartphone and an old laptop. i use ethernet cable to connect to main computer where all is ok until i start using my bit torrent client. as soon as i build up traffic above 1MB the ethernet portion of the router freezes and needs a reboot. when frozen, wireless is still working and i still have access on the lan to the router via my browser. i got this router so i could have wifi for my phone. my old router (asus rx3041) worked just fine and i accessed my isp at the maximum speeds it would allow on a 60 gigabit connection.
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Jun 10, 2011
I have two cisco wlc 5508. I wan to install them in two differents site. One WLC in the site A and the another WLC in the site B.
Site B is the WAN of the site A. The site A is the headquarter.
But i need to configure them in High Availability. For example if the Cisco WLC in site A goes down, the ap's have to registered in the WLC of the site B.
Then the traffic LWAPP have to pass over the WAN between site A to site B.
I have to configure two cisco wlc in HA over a WAN . Is ok configure the roamming L3 intercontroller?
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Jun 14, 2012
I found 20Mhz bandwidth enable option in 2504 controller.But what about 40 Mhz .The access points(1142) are dual band...I hope it should support in 2504 controller also.If there is no option of 40Mhz
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Jan 19, 2012
I have 2 WLC (5508), i configured the option for enable the high availability, but when the 2 WLC is working the mesh network is unstable, when only wlc is working the mesh is fine.
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Mar 25, 2011
If there is something that cant control the bandwidth of our internet.
The problem is that one person is constantly hogging our internet by downloading and such and making it impossible to play games.
So is there anything that can make it so he cant use that much bandwidth so we can play without constant lag?
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Aug 16, 2012
I setup a WLC5508 with 2 SSIDs, one for guest traffic and another for internal users. They are in separate subnets and are routed out to the internet via 2 different isps, with the guest network going over a bonded t1 and the internal users going out the primary internet connection for the company. While this works as desired and we've verified that while on the guest network we're going out the right isp, we've encountered an issue with saturation of the bonded t1 pipe by guests. We'd like to find a way to limit a guest to a capped down/up stream if possible, with downstream being the most important. The infrastructure includes 3560 switches and AIR-CAP3502I-A-K9 access points.
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Sep 18, 2011
I am upgrading the Wireless Infrastructure with two 5508 WLC.I am setting up High Availability, but I think is not quite working.
Primary Controller = WLC1
Secondary Controller = WLC2
LAP = LAP1
LAP1 has WLC2 as the primary controller for HA
LAP1 has WLC1 as the secondary controller for HA
While connected to LAP1, I shutdown WLC2. After ~ 20 seconds, LAP1 move to WLC1.I lost connection from LAP1 Don't LAP1 should move with all its clients to WLC1?Am I missing something in my configuration?
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Jun 12, 2013
Is there any way to determine how much bandwith users on a particular WLAN (Guest) are using on the 5508 or by any other means?
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Nov 9, 2011
Is it possible, through a QoS profile, to control how much bandwidth a user gets to use for upstream traffic? I can easily set limits for downstream traffic, via the per user bandwidth contracts, but it is not obvious to me on how to control upstream traffic.
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Apr 21, 2013
I want to use a 5508 as an anchor controller for a wireless guest deployment....but the client has internal 4402's controllers, with software version 7.0.235.0...is it possible tu mix these two controllers for a Wireless Guest Access Deployment??
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Oct 2, 2012
A wlan on my controller is configured for WPA2, AES encryption and a PSK. A vendor will supply me with a wireless device for this wlan. The vendor asks if we use AES 128 or AES 256. I had always believed we use AES256 but I can't verify this. How can I verify this to the vendor?
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Mar 21, 2011
Seems that all solutions are null and void for us because we are not using SNMP v3 or H.
We are using SNMP v2, We have upgraded our WCS to latest version as well as the controllers. I have 6 controllers currently added although they are on WiSM blades.
We are unable to add the 5508 Controllers, we keep recieving this error -
No response from device, check SNMP communities, version or network for issues.
I have confirmed all connectivity is working, even with a debug on the controller you can see it sending SNMP packets to the WCS, although still same error.
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Jan 9, 2013
I have a wireless controller 5508 and all my interfaces can be accessed via https or ssh from a wireless client. Management access from a wireless client is disabled so I don't understand why this is happening.
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Nov 29, 2012
We have a customer that is looking to allow only static IP addresses onto the wireless network via the new 5508 we are putting into place. I can see where to require DHCP but not the opposite.
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Aug 16, 2012
Is it possible to block outside P2P traffic on a guest wireless network using an ACL on the controller? I know we can do it our firewall
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Sep 12, 2012
i'am trying to configure an AP1121g on my controller wlc5508 7.2 but i'am facing a compatibility issue.
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Sep 30, 2011
I have a 5508 controller at our headquarters and am installing some 3502 AP's at a remote branch. Unfortunatly, the remote branch has a different Vlan setup for some reason and the vlan that is used for the WLC (90) is designated for telephony at this branch. Can I put the AP's on a different VLAN (10) without having any issues? I will still use DHCP option 43 to point them back to the controller. Below are the configs for the WLC interfaces and what I am proposing for the AP interfaces:
WLC Config
interface GigabitEthernet1/1/38
description WLC01
switchport
switchport trunk encapsulation dot1q
switchport trunk native vlan 90
switchport trunk allowed vlan 1,10,50,90,91,390,410-413,610-613,800,810,811
switchport mode trunk
[code]......
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Mar 29, 2012
Web Auth on 5508 running 7.2.103.0.
Issue 1: I have been trying to configured Webauth bundle however it seems that is not working.
1. login.tar created use picozip contains 3 files: login.html, terms.html, and logo.jpg.
2, uploaded via FTP to controller successfully..
3, no issue when i tried to preview on the controller
However users unable to see the login page when connected to guest wifi. when the user tried to connect cisco.com, on the browser address shows that the page redirected to url... however internet explorer / firefox display "Connection reset error".During this time, if i ask the user to type url... they can see the default login page, so no issue on connectivity to the service port.
Issue 2: Since i couldnt make that work, i have use default webauth internal. its all good. then when i tried to upload customlogo.jpg (18k size). User able to see the login page however not the logo. it shows broken image icon on the web browser. --> i can see the logo when i did preview on the controller.
Issue 3: last resort if i couldnt get the answer by sunday, how do i delete or remove the customlogo ?? so by monday users will not be seeing any errors on the page.
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Nov 13, 2012
Cisco 5508 Series Wireless Controller for up to 100 APs 802.11a/g/n Ctrlr-based AP w/CleanAir; Ext Ant; E Reg Domain..For Mobility i want to settup the device such that the SSID would be the same with thesame security key and in different subnet.
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