WLC at core and LWAP in the distribution
the attached design for WLAN , there are two buildings one is the faculty of computer science where the access points and the distribution layer switch are resides, the second building is the IT management building where the core layer switch reside, the connectivity between the core and distribution is using the layer 3 connectivity (EIGRP routing), the VLANs are created on the distribution layer switch, and multiple VLANS needed to be configured on the WLC, i am thinking to use flexconnect or REAP and DHCP 43 , but after registration how i can configure the different VLANS with different subnet ?
shall i configure the vlan interfaces on the distribution layer switch with ip addresses and assign it as agateway for AP? if some one can help.
You can take advantages of Local mode AP deployment, if you could move your WLC onto your distribution layer (in your case computer science building).
If you go ahead with FlexConnect mode, then you do not require to define dynamic interface on WLC with the same subnet as users IP range. You can have a dummy interface in WLC, but WLAN configured for FlexConnect Local Switching. In this way users will get IP as per the SVI configuration on your distribution layer.
Compare to Local mode, FlexConnect mode having certain deployment limitations (no multicast, no L3 roaming, No of AP in a FlexConnect group, etc)
HTH
Rasika
**** Pls rate all useful responses ****
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Photoshop touch gets stuck on load screen on samsung grand, neo, core and most of the samsung phones
photoshop touch gets stuck on load screen on samsung grand, neo, core and most of the samsung phones
Hi,
which version are you using of the app?
Does it help to set the phone in flight mode?
Thanks,
Ignacio -
So our customer has asked us to compare compare Amazon Workspace and Azure RemoteApp offerings for them to choose from. While looking at Amazon Workspace, it clealy defines bundles with specific CPU cores, memory and user storage. However, Azure RemoteApp
only specifies user storage and vaguely compares its basic vs. standard plans in terms of "task worker" vs. "information worker"
I tried looking up its documentation but couldn't find specific CPU cores that are dedicated per user in basic vs. standard plans. I have following questions:
Can anyone point me in the right direction or help understand how many CPU cores and memory are dedicated (or shared) per user in each plan?
Our customer would most likely need a "custom" image for their custom apps. Is it possible for us to choose specific CPU cores and memory for the users to be able to run their apps in azure remoteapp?
In case i am misunderstanding the basic difference between AWS workspace and Azure RemoteApp, i'd appreciate some help in understanding it as well.
Thanks!Hi,
With Azure RemoteApp users see just the applications themselves, and the applications appear to be running on their local machine similar to other programs. With Workspaces users connect to a full desktop and launch applications within that.
1. Azure RemoteApp currently uses size A3 Virtual Machines, which have 4 vCPUs and 7GB RAM. Under Basic each VM can have a maximum of 16 users using it whereas under Standard each VM is limited to 10 users. The amount of CPU available
to a user depends on what the current demands are on the CPU at that moment from other users and system processes that may be on the server.
For example, say a user is logged on to a VM with 3 other users and the other users are idle (not consuming any CPU). At that moment the user could use all 4 vCPUs if a program they are running needed to. If a few moments later
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may contact support.
-TP -
what is capwap and lwap? the differnce?
LWAPP = Cisco proprietery..
CAPWAP = Industry standard protocol
Both used to get the AP joining the WLC...
http://www.cisco.com/en/US/products/ps6366/products_qanda_item09186a008064a991.shtml
Lemme know if this answered your question..
Regards
Surendra -
WLC upgrade license and access point
Hi everyone,
I need suggestion regarding wlc 5508 upgrade license. Right now i have 150 license for access points. There will be upgrade around 300 access points. So we are planning to buy new license until the maximum capacity of 5508 (500 licenses).
Our management ip address is 192.168.50.x/24 . so all the access point are pointed to this management ip address (in the same subnet)
First question,
Because there will be an upgrade to around 450 access point. The current management ip address will not be enough.
Please, give me the best suggestion ?
Should i create another management ip address ? or I need to make a bigger subnet using the current management ip address ?
if i create a bigger ip address, the current access points must be set again yups ?
Second question
There will be a new link connected to the wlc, and i want to create new user subnets.
what is the best practices for this matter ?
if there are better suggestion, please let me know, i am still learning about wireless
I have attached the topology.
Thank you
FanieFor an example, a 5508 can support up to 500 AP's, and the AP's can be in one large subnet or be in many different subnets and or even different locations. As long as the ap knows how to discover the WLC or the ap already had joined the WLC, then the AP's don't have to be on the same subnet as the WLC. The easiest way to have AP's join is to stage them on the same subnet as the WLC management and then move them to a different subnet. I would probably have no more than 100 AP's per subnet, but that's me. Stage some AP's on the management subnet that the WLC is on and then when the AP's join and complete downloading code, change the switch port Vlan and shut and no shut the port. The ap will come back up and join the WLC.
Sent from Cisco Technical Support iPhone App -
IPv6 for management and control plane on WLCs and LWAPs
Good morning, everybody!
I am trying to find answer to a question that has been previously asked by people but never successfully answered
The question is about IPv6 support on Cisco Wireless LAN Controllers and access points... Does Cisco have a roadmap to include support for IPv6 used in CAPWAP, control plane and management? There are couple of posts on this topic that do not unfortunately provide any answer to this point.
https://supportforums.cisco.com/message/3018843
https://supportforums.cisco.com/docs/DOC-15667
Infamous "Cisco IPv6 Solution" at http://www.cisco.com/en/US/partner/technologies/collateral/tk648/tk872/tk373/technologies_white_paper_09186a00802219bc_ps6553_Products_White_Paper.html briefly states "Wireless Solutions... In future, IPv6 control plane features may get added to those components."
Has anyone heard of any more specific roadmap for IPv6 support for CAPWAP, control plane and management on WLCs and LWAPs?Full ipv6 support will never be available on the Wism and 440x controllers because they have a NPU to forward traffic and it was not designed with ipv6 in mind.
The 5508 and Wism2 and all new controllers all have CPU based forwarding and ipv6 is coming in next releases.
WLC 8.0 is only for december 2011/2012 and I have to say I don't know if it will support native ipv6.
my 2 cents -
Peculiar error from WLC and LWAP locking out iPhone 6+
WiFi LAN:
WLC Cisco 2504 Software Version 8.0.100.6
LWAP's Cisco 1702i's Software Version IOS 15.3 Mini IOS 8.0.72.236
Single WLAN using WPA2 (AuthPSK)
Apple iPhone 6+ Software Version 8.1.2
The error being reported in the 2504 WLC Message Log is:
"*sntpReceiveTask: Jan 21 10:59:27.457: #LWAPP -3-DUP_IP:spam_Irad.c:39857 The system has added client a8:8e:24:60:a0:52 to exclusion list due to IP Address conflict of AP 192.168.10.10, this is a duplicate of IP on another machine (MAC a8:8e:24:60:a0:52)"
In the error above:
a8:8e:24:60:a0:52 - Is the Smart Phone being locked out of the LAN.
192.168.10.10 - Is the IP address of the LWAP where the problem started yesterday.
To troubleshoot, I took the smartphone to another LWAP 100 meters away and the above error still gets reported to the 2504 WLC.
My questions to the support community:
1) I have looked everywhere for this "Exclusion List" on the 2504 WLC GUI and cannot fine it. Does it exist on the 2504 GUI? CLI?
2) If not, is it on the LWAP?
My thinking is to clear this list to see if this smartphone can then join the LAN. THXThanks for that Scott. I will do the updates when a window opens up. I performed the opened SSID as you suggested and the smartphone would not join on the first attempt. On the second attempt I manually entered network settings and it finally joined and has held for over an hour now. I have 2 iPhone 6 smartphones with this problem now and 45 mixed iPhone 6's/Droids running flawlessly with WPA2/AES Security. I will attach a couple screenshots of the security setup to this post.
On another note, I had originally though that this was an Apple IOS 8 issue as I found a recent thread on the Apple Support Communities mentioning the same issue of continuous re-logging in.
https://discussions.apple.com/thread/6536955 -
Identification of Core and Distribution Layer Design
Hi
I am a CCNA certified and I am doing a job as an IT technician here in UAE. I'm the only IT person in my company. Having no prior experience in networking field, I find myself in a pickle. With the help of CDP, I have figured out the network diagram. I am told that there is a COLLAPSED CORE network running in my company. I cannot identify the Core switches here. My question is how to identify the the core switches? We have two internet connections in two separate buildings. Can somebody please help me out. Please..Generally speaking with a L2 access layer to L3 distribution switches the default gateways of the vlans are on the distribution switches.
The core switches are used when you need to interconnect multiple distribution switches eg. a campus LAN type environment.
In many sites if you only have one building the core and distribution switches are the same pair of switches but to be precise the default gateways are not on the core but the distribution switches.
If you have a separate pair of core switches you usually connect your distribution switches using L3 links so again the STP root for the vlans would actually be the distribution switches for the vlans they route for and not the core switches.
Separate core switches are basically just a high speed interconnect between your distribution pairs and should be left to do that so the routing between vlans, acls etc. are done locally on the distribution switches and only traffic for remote vlans/IP subnets ie. those on other distribution switches would go via the core switches.
If the same pair of switches is used for both functions then all routing between vlans and routing to remote networks is done by that pair.
Jon -
I have a MacBook Pro 15.4" 2.53GHz Core 2 Duo (A1286) - Mid 2009 MC118LL/A and I think the MATSHITA DVD-R UJ-868 is going out. Should I replace it with the exact same drive or is there a better one that is compatible?
I went to my local Apple store last weekend with a similar issue on my 2007 C2D MBP and they quoted me a price of around £60 (excluding VAT) to replace the optical drive. That's about the same price as the external optical drive a bought for my RMBP.
Alternatively you could just buy a 3rd party external drive if you want to save cash but note that the external Apple superdrive is not compatible with MacBooks with built in optical drives. -
IS THE SITUATION HOPELESS
I used Target mode to transfer files to a new i7 iMac running Snow Leopard 10.6.8 from an older Dual core Intel machine (EMC 2105) also on 10.6.8. but originally Tiger 10.4. The operation was successful and I ejected the disk icon from the new machine and powered down the old machine. When this was restarted the next day there was a grey screen with flashing Mac symbol alternating with a 'no entry' sign and occasionally a question mark.Keyboard and mouse were unusable so k inserted the original instal disc (No.1 for 10.4. with installer 1.0.4) which came with the machine in 2006 in an attempt to boot from this. The ensuing window said this was not possible and now it cannot be ejected.I have tried everything ! It offers Disk Utility and other options like Terminal but that doesn't work either.I 'repaired disk' and that was pronounced o.k. None of the various keystrokes at start up will work, and the computer will only offer the installer disc continually.The only option would seem to be is to erase the hard drive completely from the disc in the machine.I don't want to do this as there is still material which I need to recover. I think the drive has in some way been corrupted by using it in target mode, and I don't know if there are any other options to try.
Please tell me how to get this disc to eject !Graham Giles wrote:
Have you seen this type of problem before? I think it could be a serious issue for anyone in a similar position.
No; but then, I've not had occasion to use TDM. I've been using firerwire drives for over 10 years, both FW400 and FW800, with no issues except a bit of instability using a B&W G3 machine.
TDM should be safe. Using cautious, manual copying of files from the Target machine to the Host machine should not result in unexpected loss of files or damage to the Target drive's directories. It should behave exactly the same as if it were an external (to the Host) firewire drive.
• I don't suppose there is anything I can do to 'put back' lost items from a separate Time Machine drive which has an up to date backup on it.
There is probably a way to do that - seems to me that's one of the reasons for a Time Machine volume.
On the other hand, if the Time Machine volume is rigidly linked to the now-absent OS on the original drive, there may be no way to effectively access the files in the TM archive.
I know that using a cloned drive would work well in this instance.
I have no experience with Time Machine, so perhaps someone who has will chime in with suggestions.
With the machine in TDM with the other machine, have you tried running Disk Utility to see if you can effect repairs to the drive? -
I have an iMac purchased new about 5 years ago with OS 10.4.11. I would like to upgrade to Lion. I currently have a 2.33 GHz Intel Core 2 Duo processor with 2 GB of ram. Can I upgrade to Lion, and what is the best way to do so?
From what I read here:
http://www.tuaw.com/2011/06/06/lion-...u-2-gb-of-ram/
s long as they already have Snow Leopard 10.6.8 installed in it.All a person needs to do with that type of iMac is to upgrade/max out their Ram. They claim that an Interl iMac with Core 2 Duo is all that is needed, as long as it has OS 10.6.8 installed. They say you don`t need the "Core i3, Core i5, Core i7, or Xeon processor"
But I wonder about the RAM speed, the iMac 2.33Ghz uses DDR2 SDRAM, which I believe is rated at 667Mhz. Lion maybe installed but it might be problems running smoothly or not?
Did some quick checking and the iMacs apple is selling this year use 1333MHz DDR3 SDRAM.
The only thing to do is to make sure you have a good back-up, Install your RAM and install Snow Leo, then wait a couple of hours and install Lion.
Good Luck -
My Mac Mail subfolders on my MacBook Air will not sync in alphabetical order. I am assuming it is a setting that I am not finding since my iMac based at my home office is fine, so is my iPad and iPhone. The core source is Exchange.
If you have been using the mac.com Apple ID to make iTunes purchases recently, then there should be no issues continuing to use it with the new iPhone. I would abandon the new ID as you will never get Apple to merge the two IDs. I have had a mac.com ID for years and continue to use it with my iPhone 4S.
Tell us the issues that you encounter trying to set up the iPhone with the mac.com account. -
*** WARNING *** Upgrade to 5.0 may require isolating LWAPs from the WLC
Before you run into the problem that we ran into when one of our larger customers upgraded from 4.2 to 5.0 and the result was that the controllers got caught in a loop during the upgrade and took the entire WLAN down.
Please be advised that Cisco recommends that you ISOLATE all lightweight access points from their controller during the upgrade of the controller from 4.2 to 5.0.
In part, this is due to a bug in 4.2.xx that starts upgrading the LWAP software images before the controller finishes updating/rebooting. This can cause interruption to the LWAPs as they upgrade their software from the controller when it reboots.
I have also heard of some situations where the LWAPs get corrupted to such a degree where you may have to out and physically access/reset the LWAPs that were interrupted during the upgrade process. I believe the worst-possible-case for this would be limited to no more than 10 LWAPs per controller
that can upgrade at a time)
In our case, the result was that the upgrade process hung up - with some LWAPs stuck, and all other LWAPs unable to pass traffic through the upgraded (ver 5.0) controller because they were at the previous revision (4.2).
In our case, this resulted in a system-twide WLAN outage.
As part of the call into Cisco TAC, the engineer said, in effect, 'why didn't you ignore the release notes instructions and isolate your controller from the LWAPs during the upgrade?'.
Our response was, we would have done so if it had been in the release notes (which it is not). So, after much cajoling by us, TAC finally agreed that it might be a good idea to include this additional step in the release notes.
Please reference the bug which requests an update to the 5.0 release note installation instructions: CSCso02420
TAC is aware of this problem and it is my understanding that there is discussion at Cisco regarding a maintenance release for 4.2 (since 4.2 is where the problem actually lies). The maintenance release would be applied to 4.2 controllers PRIOR to upgrading them to 5.0.
In the meantime, if you are still anxious to upgrade to 5.0, one workaround is to isolate the LWAPs from the controller either by:
1) Physically disconnecting the controller from the network during the upgrade and reconnecting it after its upgrade/reboot is complete.
or
2) Temporarily disabling the VLAN that carries the LWAP traffic to/from the LWAPs/Controller and re-enabling the VLAN after the upgrade/reboot of the controller.
I hope that this is helpful for anyone out there who is about to upgrade to 5.0.
I hope your upgrade goes smoother than our customer's did.
- John
(Please remember to rate helpful posts)FYI - I noticed these messages in the message log on a 4.0.179.11 controller, sourced from 4.2 controllers.
Fri Mar 14 17:14:36 2008 [ERROR] ethoip.c 106: Eth-over-IP pkt too short; pkt size=82, expected min=66
Fri Mar 14 17:14:36 2008 [ERROR] mm_listen.c 4157: Mobility packet IP-message IP mismatch: pkt: 172.20.48.68 msg: 215.42.227.2
Fri Mar 14 17:14:36 2008Fri Mar 14 17:14:33 2008 [ERROR] ethoip.c 305: ethoipSocketTask: ethoipRecvPkt returned error
Fri Mar 14 17:14:33 2008 [ERROR] ethoip.c 106: Eth-over-IP pkt too short; pkt size=82, expected min=66
Fri Mar 14 17:14:32 2008 [ERROR] ethoip.c 305: ethoipSocketTask: ethoipRecvPkt returned error
Fri Mar 14 17:14:32 2008 [ERROR] ethoip.c 106: Eth-over-IP pkt too short; pkt size=82, expected min=66
Fri Mar 14 17:14:32 2008 [ERROR] mm_listen.c 4157: Mobility packet IP-message IP mismatch: pkt: 172.20.48.6 msg: 215.42.227.24
Fri Mar 14 17:14:32 2008Fri Mar 14 17:14:29 2008 [ERROR] ethoip.c 305: ethoipSocketTask: ethoipRecvPkt returned error
Fri Mar 14 17:14:29 2008 [ERROR] ethoip.c 106: Eth-over-IP pkt too short; pkt size=82, expected min=66
Fri Mar 14 17:14:26 2008 [ERROR] ethoip.c 305: ethoipSocketTask: ethoipRecvPkt returned error
Fri Mar 14 17:14:26 2008 [ERROR] ethoip.c 106: Eth-over-IP pkt too short; pkt size=82, expected min=66
Fri Mar 14 17:14:23 2008 [ERROR] ethoip.c 305: ethoipSocketTask: ethoipRecvPkt returned error
Fri Mar 14 17:14:23 2008 [ERROR] ethoip.c 106: Eth-over-IP pkt too short; pkt size=82, expected min=66
Fri Mar 14 17:14:22 2008 [ERROR] ethoip.c 305: ethoipSocketTask: ethoipRecvPkt returned error
Fri Mar 14 17:14:22 2008 [ERROR] ethoip.c 106: Eth-over-IP pkt too short; pkt size=82, expected min=66
Fri Mar 14 17:14:19 2008 [ERROR] ethoip.c 305: ethoipSocketTask: ethoipRecvPkt returned error
Fri Mar 14 17:14:19 2008 [ERROR] ethoip.c 106: Eth-over-IP pkt too short; pkt size=82, expected min=66
Fri Mar 14 17:14:16 2008 [ERROR] ethoip.c 305: ethoipSocketTask: ethoipRecvPkt returned error
Fri Mar 14 17:14:16 2008 [ERROR] ethoip.c 106: Eth-over-IP pkt too short; pkt size=82, expected min=66
Fri Mar 14 17:14:13 2008 [ERROR] mm_listen.c 4157: Mobility packet IP-message IP mismatch: pkt: 172.20.48.4 msg: 215.42.227.24 -
HELP I just bought a new dell quad core 5i and HAVE DOWNLOADED THE TRIAL VERSION OF PHOTO SHOP - its Slow to open up a small file and equally as slow to print why?
Use Photoshop menu Help>system Info... use its copy button and paste that info in an append here.
Supply pertinent information for quicker answers
The more information you supply about your situation, the better equipped other community members will be to answer. Consider including the following in your question:
Adobe product and version number
Operating system and version number
The full text of any error message(s)
What you were doing when the problem occurred
Screenshots of the problem
Computer hardware, such as CPU; GPU; amount of RAM; etc. -
I have a macbook pro core i7 mid 2012
And update to the latest version 10.8.4 system after updating the system I have the problem appeared to take off the device and stops at the apple logo for about 5 minutes and then enters the desktop How can I solve this problem and thank youIf you have more than one user account, these instructions must be carried out as an administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Step 1
Make sure the title of the Console window is All Messages. If it isn't, select All Messages from the SYSTEM LOG QUERIES menu on the left. If you don't see that menu, select
View ▹ Show Log List
from the menu bar.
Enter "BOOT_TIME" (without the quotes) in the search box. Note the timestamps of those log messages, which refer to the times when the system was booted. Now clear the search box and scroll back in the log to the last boot time when you had the problem. Select the messages logged after the boot, during the time something abnormal was happening. Copy them to the Clipboard (command-C). Paste into a reply to this message (command-V).
For example, if the problem is a slow startup taking three minutes, post the messages timestamped within three minutes after the boot time, not before. Please include the BOOT_TIME message at the beginning of the log extract.
If there are runs of repeated messages, post only one example of each. Don’t post many repetitions of the same message.
When posting a log extract, be selective. In most cases, a few dozen lines are more than enough.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some private information, such as your name, may appear in the log. Anonymize before posting.
Step 2
Still in Console, look under System Diagnostic Reports for crash or panic logs, and post the entire contents of the most recent one, if any. In the interest of privacy, I suggest you edit out the “Anonymous UUID,” a long string of letters, numbers, and dashes in the header of the report, if present (it may not be.) Please don’t post shutdownStall, spin, or hang logs — they're very long and not helpful.
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