Cisco :: High Availability With 2125 And 2504?

Oct 28, 2012

Current environment is Cisco 2125 WLC managing ~12 3502E AP's for a single location. Client is looking to provide HA for the single 2125 WLC. With the 2125 now EO-Sale is it possible to go with one additional 2504 WLC and leverage the existing 2125 or would it require going with just (2) 2504's?


Cisco Wireless :: Migrating WLAN Controller 2125 To 2504

May 29, 2012

I will migrate a Cisco WLAN Controller 2125 to 2504,So I have one question?I need to make all configuration into the new Wlan Controller or I can migrate with one tool or something else?

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Cisco :: WLC 5508 In High Availability Over WAN

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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Cisco AAA/Identity/Nac :: ACS Migration From 4.0 To 5.3 With High Availability?

Oct 1, 2012

One of my customer wants to upgrade their Cisco ACS version from 4.0 to 5.3. The client has existing ACS version 4.0 windows on VM with two instance and need to upgrade to 5.3 Linux.As per my understanding following version are supporter to upgrade ACS to version 5.3 ACS 4.1.4ACS 4.2.1 but unfortunatlly there is running 4.0.I suggested to my client the upgradation for ACS and proposed this Upgrade lisence L-CSACS-53VMUP-K9 and CON-SAS-CSACS3V? how I can do the smooth deployment / Migration from 4.0 to 5.3 with (A/P)high availability.

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Make High Availability Between Two Cisco 3560G Switches?

May 7, 2012

We want to make High Availability between two Cisco 3560G switches. Can you tell how we should proceed?Is there any HA module available for Cisco 3560G?

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Cisco Wireless :: WLC 5508 - Setting Up High Availability?

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
 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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Cisco WAN :: High Availability Configuration Between 2 2901 Routers

Jul 7, 2011

I have to install and configure two 2901 routers at different location with high availability.  These 2 routers would be connected through WAN, now I would like to configure high availability bwtween two routers.
I have attached a small diagram of the placement of 2 routers.
how do I configure high availability between these 2 links or routers.

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Cisco AAA/Identity/Nac :: Secure ACS 5.2 Appliance - High Availability

Sep 1, 2011

I just want to know if i need to support High Availability in Cisco Secure ACS 5.1 appliance, will the base license suffice or do i need to buy Security Group Access System License/ Large deployment License. Again, do we require license for each appliance or just one is enough?

I Suppose the licensing rules are same for the Vmware version also.

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Cisco Firewall :: 5505 High Availability Over Dual WAN Connections

Mar 20, 2011

One of my remote sites acquires Internet connectivity via a cable  modem service.  This goes down intermittently, of course.  I would like  to purchase DSL service from the local telco and configure the edge ASA  (currently a 5505) to use the cable modem path normally ... and fall  back to the DSL path if necessary.
These seems hard to  do.  The edge box would need to evaluate the viability of a WAN path  using some set of tests ... perhaps pings to a handful of major Internet  sites.  If all those pings start failing, it would stall for a minute,  to give the WAN service provider time to recover ... then cut over to  the second path.  Cutting to the second path might mean pushing new DNS  server addresses to clients (or perhaps the edge box would hand out both  sets of DNS servers all the time and rely on the clients to try them  all.)  Once the cable modem provider restored service, the edge box  would stall for a while (ten minutes?  an hour?) and then cut back.
I'm willing to replace the edge box with something  fancier (a bigger ASA or something sold as a router or whatever),  although I'd like to stay under 10K (list) for such a replacement.

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Cisco :: 5508 Controller - Software Version / High Availability?

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.
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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Cisco Firewall :: ASA 5520 Configuring Active Standby High Availability

Nov 1, 2011

I am new to Cisco firewalls. We are moving from a different vendor to Cisco ASA 5520s.I have two ASA 5520s running ASA 8.2(5). I am managing them with ASDM 6.4(5).I am trying to setup Active/Standby using the High Availability Wizard. I have interfaces on each device setup with just an IP address and subnet mask. Primary is and secondary is The interfaces are connected to a switch and these interfaces are the only nodes on this switch. When I run the Wizard on the primary, configure for Active/Standby, enter the peer IP of and I get an error message saying that the peer test failed, followed by an error saying ASDM is temporarily unable to connect to the firewall.

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Cisco Security :: Iron Port S160 High Availability Deployment

Apr 10, 2011

I would like to know how to implement high availability on a S160 ironport device.i have two S160 device but the user guide is not useful.

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Cisco :: Connecting And Configuring Two Wlc In High Availability To 3 Switches In Stack 3750 In Difference Ports?

Aug 1, 2011

Is possible connect and configuring two cisco wlc in high availability to 3 switches in stack 3750 in difference ports?For example
WLC B (Secondary) - SWITCH SLAVE
How can i connect the wlc's in HA to get a redundancy in the stack?

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Cisco Firewall :: 2911 - Control Link In Zone-Based Policy High Availability

Jun 26, 2012

I have set up a zone-based policy firewall with HA on two 2911 routers as per the Cisco security configuration guide, for an active/passive LAN-LAN cluster. All works as expected, but there is one problem I find: when the control link between the two devices fails, they go into an active/active state as each member assumes it's the last surviving member. The ARP entries for the Virtual IPs on the neighboring devices point to the device that last claimed the active role (usually the standby device). This works in a way, just sessions don't get synched anymore (control link is the same as data link). Now when the link comes back up, the preemtion works and the active, former standby device goes back to standby. But the ARP entries on the neighboring devices still point to the standby device and nothing goes (also sessions established during the active/active state are lost due to resync with the now active member).
This is a single point of failure and what I need is a way to mitigate that. Under:

application redundancy
group 1
control <interface> protocol 1

only one control interface is allowed. Other manufacturers with similar functionality provide for the possibilty of a backup control link, for example the internal LAN interface or a dedicated backup link.
How would I go about that? Maybe use a port-channel for the control/data link (but I'm out of interfaces)?

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Cisco Wireless :: 6500 Configure Mobility Groups For Guarantee A High Availability / Also Redundancy Of Controllers

Mar 24, 2012

What consequences could i have if i install a WiSM-2 module into a pair of 6500 configured in VSS and another WiSM-2 module into other pair of 6500 configured in VSS for serving a 300  APs?? this case, do i need to configure mobility groups for guarantee a high availability and also redundancy of controllers?Under the best practices, is much better having the two WiSM-2 modules into a single pair of 6500 configured in VSS??

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Cisco Wireless :: 4400 High Availability In Wireless Controller

May 28, 2012

We have two 4400 WLC's. We have around 20 access points in our network.If we assign controller1 as primary for half of the access points and controller 2 as primary for the other half, does this mean the association of the ap's indicate load balancing by the controllers. Does this mean wlc does load balancing as different ap's associate on different controllers. or does it only server as active-standby wlc.

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Cisco WAN :: Joining AP802 To 2125 WLC

Dec 3, 2011

I'm having problem joining a AP802 access-point in a Cisco 887VAM-W router to a WLC2125 running I get the following messages pasted below from the AP console. The AP connects to the WLC over a EZVpn tunnel with a ASA on the other end, and can't see any error messages there. [code]

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Cisco Wireless :: LAN Controller 2125 IOS Upgrade?

Sep 28, 2010

A customer has wireless LAN controller with version and i want to upgrade it to version i need to upgrade the controller to intermediate version or i cant directly upgrade it.

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Cisco :: WLC 2125 Modify Heatmap Shape

Mar 20, 2011

I am quite new to WCS and preparing a demo for a client. I am also using WLC2125 with LAP1252s for this setup. Is it possible to modify the shape of the heatmaps of the APs? I know how to regulate TX power of the radios and all works great but how can I controll RF leakage outside the perimiter of the building? Is it possible to controll the RF so that it will not be going outside and same time giving a good coverage inside?

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Cisco Wireless :: 2125 / AP Cannot Join To WLC After Power Failure

Jan 13, 2013

We have cisco wlc 2125 with 13 AP 1131g. All works good. But after power failure one AP can not join to controller, only reset work to recover connection AP to WLC. Additionally, we don't have access to rs-232 port on AP. In this moment on WLC we can see DISCOVERY request from AP and response from WLC to AP, but AP don't send JOIN to controller.

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Cisco Wireless :: WLC 2125 Custom Web Authentication Page?

Feb 16, 2012

I try to make custom web-auth bundle for WLC 2125. User authentication from this custom page work fine, but any error messages about wrong login/pass not work.

Is this supported function for custom pages? If yes, could you result a working html-code?

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Cisco :: 2125 Wireless LAN Controller TX Power Configuration?

Aug 29, 2011

I have a Cisco 2125 Wireless Lan Controller and I have problem with hold coverage errors and I had tri different solutions with different antenna, the resume is:The antena gain 10*0,5 Dbi(Using a 5 Dbi antenna or 10 Dbi antenna) with Tx power 1 and the antenna gain 20*0,5 Dbi (using 10Dbi antenna) with Tx power 3 the coverage is the same.
If I try the configuration 20*0,5 gain antenna and Tx power 1 the controller show me one error and the controller don't permit this configuration. Why don't permit this configuration?

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Cisco Wireless :: WLC AP Upgrades On Automatic Update 2125

Apr 1, 2013

I have WLC 2125 on version and AP's on version 12.4(21a)JA.I also have a load more AP's (newones) 1041's with IOS version 15.2.
So i have to upgrade my WLC because the newones are not compatable with the old WLC version.What will happen to the old AP's ?I was told they will automatically update the IOS version.These AP's (oldones) are not on site, they are in a differnet LAN.

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Cisco Wireless :: 1131 Ap Working With 5108 Controller But Not With 2125

Dec 23, 2012

I have this issue regarding the 1131 Access Points. These access points were fat access points from the factory and were applied with LAP ios so that they can join our controller. We have 2 controllers 5108 for  Internal network office use and a seperate 2125 for Guest internet both these are physically seperate networks. These AP's have been working fine since say like 8-9 months and suddenly they started giving problems. The status light keeps changing colour and the AP does not join the controller 2125. Whenever i am connecting this ap to our internal network it joins the controller 5508 and works fine but somehow does not register with our 2125 guest controller. This issue is being faced by one of our client. Could this be an issue due to the ap being loaded with lap ios or does it have anything to do with the different software version fo the controllers as i could not find any things regarding this.

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Cisco Wireless :: WLC 2125 - Web External Authorization And Disabled Java

Jul 21, 2012

I have cisco wlc 2125 and external web autherthation was configured on it. When user disable the java script in browser cisco wlc do not redirect on my external page instead of wlc show page with cisco logo. How can i resolve this problem? How to configure wlc redirect to external web auth site with disabled java in users browser?

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Cisco Firewall :: ASA 5510 7.2.1 High Traffic On Outside Interface Very High Input?

Oct 13, 2011

Today I've received reports of slow internet access/activity and have noticed myself that it seems a bit slow today.  On the dashboard of our asa 5510 the "outside interface" traffic usage is running constantly high. It's at the top of the graph. How can I tell what is causing the spike in utilization. It usually runs at about 1500-2000 Kbps, and now it's up over 10,000.

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Cisco :: 2950 / 2960 / 3560 / 3750 / 2125 / 1262 - Centrally Manage All Switches

Aug 27, 2012

I have more than 20 Cisco switches in my office which is basically a soap manufacturing factory. The switches include Cisco 2950, 2960, 3560, 3750 etc. We have routers also which include 2821, 2951 etc. We also have Cisco WLC 2125 and LAP 1262 series. Sometimes all these devices management comes very tough to us.
We need to log on to different devices for troubleshooting/network management which sometimes becomes very tough to us. So I wonder if there any Cisco applications or tools by which we can centrally manage all these devices.

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Cisco WAN :: 2801 High CPU Load / Low Traffic / High Interrupts

Nov 26, 2012

We installed a solution with 2 Cisco 2801, BGP multihomed failover.
1) The router which is currently getting all the traffic gets to 55% to 60% of CPU usage when handling 40 SIP/RTP streams . This equals 10Mbit up/10Mbit down and it showed around 5800 packets TX and around 5800 packets RX, with a majority of them CEF switched. As those figures are way less than the performance figures published by Cisco, we wonder if we made any mistake in setting up our router, or if we can do something to improve the router setup.
2) Does it have an impact on router performance if we increase/decrease RTP packet size, thus increasing or decreasing the pps relative to the consumed bandwidth?
3) If it is not possible to improve router configuration, we also wonder about possible replacement units for those routers. Would a 2901 do a good job? By how much would it rise the capacity? What other models would you recommend if we plan to rise the number of concurrent calls by a factor of 4 or even 8 times of what we have now (so up to 48000 pps and 80Mbit).
Here is what we tried:

- ip route-cache same-interface does not seem to improve anything

- ip flow ingress on or off makes no difference

- disabling the inbound ACL on fa0/0 seems to reduce load by 10%, although I don't understand why - a very high percentage is CPU interrupts, and ACLs are process switched, or not?

- we tried following the Cisco guide for high CPU due to high interrupts, with no success
Here are some usage statistics: 
The graphs that we plot via SNMP show a propotional growth/increase of CPU and bandwidth (and thus pps) At the highest loads, we had a bit more than 55% CPU utilization with more than 50% interrupt CPU.
CPU utilization for five seconds: 36%/30%; one minute: 30%; five minutes: 30%
PID Runtime(ms)     Invoked      uSecs   5Sec   1Min   5Min TTY Process
127       13140         954      13773  2.00%  0.29%  0.07% 194 SSH Process  


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How To Increase Internet Availability

Dec 10, 2011

what fields of IT increase internet availability. I have lived in South Korea for the last six months. I can't say how much better life is because there seems to be universal high-speed internet access, even at 24/7 fast food places like Dunkin' Donuts, McDonalds, etc.).

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Difference Between High-power And High-gain In Wireless USB Adapters

Nov 12, 2011

what's the difference between High-power and High-gain wireless USB adapters.

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Dell :: Reformatted Inspiron 17R And No Wi-Fi Availability

Apr 30, 2012

My father purchase an Inspiron 17R (he knows nothing about computers and I'm just a low level user).  He has wireless internet thru Comcast and there was never a problem.He downloaded some scam program, and I reformatted the hard drive.  Used the recovery disk, windows installed and remained connected thru the whole reformat process.This recovery disk was the operating system only- no other recovery disk was included.After the reformat, the computer now has no wireless capability.  After checking the forums I went to the service center, entered the service tag, and downloaded/installed every driver in the "chipset" and "network" categories. (Downloaded to a different computer and transferred with CD)Still no wireless.  When I click on the "bars" in the lower right corner, it doesn't even give me an option for wireless networks (which it used to- now it only says "dial up and VPN")I went to the device manager, the "Wireless LAN mini card" is ok, but there are 4 things underneath showing the yellow exclamation point of death:


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Cisco Switching/Routing :: C6509 To Have Feedbacks About Vss Availability

Mar 9, 2012

we plan to implement VSS on our datacenters (C6509/Sup720), in order to remove L2 loops (currently, access layer are C3750 stacks, which could evoluate for N5K/N2K). I would like to have some feedbacks about VSS stability. Some years ago, I have seen some bugs with this technology in another company, so I am still not totally comfortable  to use it in the datacenter.

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Cisco Switching/Routing :: LLDP IOS Availability On 2960?

Jan 19, 2012

we have some 2960 in my company and i'm looking to implement LLDP on them.But some are older than the other.tell me from which IOS the lldp is available ?

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Cisco Firewall :: ASA 5550 - Active Port Availability

Sep 28, 2011

with the 5550 we get 4 gig ports on slot 0 and 8 gig ports on slot 1, also a fast Ethernet management interface port. The documentation states that only 8 ports can be active at any one time but does that exclude this management port so that I can use this as well ?
Also is the port assignments for slot 1 like g1/0 - 1/7 ? As the other the 8 ports in slot 1 are 4 x gig E and 4 x gig sfp.

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Strategies To Ensure Availability Of Network Access

Mar 26, 2012

I'm new to learning about networks and I'm trying to do some research to be able to answer this question for a paper I'm writing. It is the only question in which I have no direction on how to find the answer to and was wondering if someone could point me in a direction? Describe strategies to ensure the availability of network access in switched and routed networks.

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Dell :: How To Check Availability And Activate Bluetooth On Latitude D630

Mar 4, 2008

I just bought Latitude D630 (2nd hand) but I don't know if my D630 have/haven't bluetooth device. how to check it? and how to enable it?

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Cisco Switching/Routing :: 2125 Wireless Controller Without Anchor Controller Just Using Existing Hardware

Dec 6, 2012

I am looking to configure a wired and wireless guest network. I have industrial barcode scanners that connect to one SSID and then there is the business network on the office SSID (no vlan seperation for these devices just different SSIDs). There is not really a need to seperate the business network from the scanners in any case. However, there are needs for a guest network and this needs to be seperated. At the bare minumum I would like to have the wireless guest network. Here is what I have: 2125 Wireless LAN controller managing 18 LAPs (1 indoor and 17 outdoors)Cisco Cat 2950 switches (2 x 24 port and soon to be replaced with 2 x 48 port 2960's with 802.1x capability) Sonicwall TZ210 firewallOne existing wired and trunked vlan for PLC infrastructure. One ESXi hosting Windows server guests (soon to be 2 with vMotion) The reason for the wired guest access network is tp prevent anyone from plugging into the wall jack in the office with thier home laptops or anyone else from being on the same subnet as our domain machines. Granted they would be unathenticaed but there would be no layer 2 seperation and that is what I think would be best.
How would I go about doing this on the wireless controller without an anchor controller just using my existing hardware? I would like to have the Guest SSID only availible in the front office. Is it possible to offer a guest network while still servicing the business network SSID on the same access point? Then might I be able to have the guest network be treated as it should at the controller? However this might present another issue altogether as the guest traffic will be over the same wire as the business SSID until it hits the controller for management.

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Dell :: XPS 1340 And WWAN 5550 / 5560 Compatibility And Drivers Availability?

Jul 11, 2013

I'd like to get a new WWAN card for my Dell XPS 1340 - currently there is 5530, though now I would like to put 5550 or 5560. I have read couple of threads on dell forums, other forums regarding the drivers availability and compatibility, however I haven't noticed any for 1340. Even though mentioned cards are not officially available for this model?

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