Wireless aironet 1250 agn latency issue

HI , i have cisco wirelss AIRONET 1250 a/g/n Series.
when user connect to this wifi n try to ping any local lan ip then their is ping delay & latency of 2000-3000 ms & packet drop also.
please check the below configuration & help me in case of any misconfiguration in the device.
Building configuration...
Current configuration : 4384 bytes
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname XXX
enable secret 5 $1$v308$CW4$GD@#&HDFSDDIF6F0
no aaa new-model
dot11 ssid XXX
authentication open
guest-mode
power inline negotiation prestandard source
crypto pki trustpoint TP-self-signed-1965857182
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-1965857182
revocation-check none
rsakeypair TP-self-signed-1965857182
crypto pki certificate chain TP-self-signed-1965857182
certificate self-signed 01
3082024A 308201B3 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
69666963 6174652D 31393635 38353731 3832301E 170D3032 30333031 30303030
32385A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D31 39363538
35373138 3230819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
8100A2C0 8F1CE9DC C0960B16 AFCB867C A83E82EF 13DE3AF0 11D91EF1 B23916A5
4F3793D0 8DE9FF37 3122C0C3 ACB5D5F0 7A5E340B 92801A4A 079D37D6 9536B912
2C5F9690 E8252680 8E53B55F 8F08D429 F61751CC 251EDC64 0B9FBB85 41A3C7B9
4A8DB41A A05BC1A6 48A82E8C 6C3990E1 5EF7FCB4 2E3804A4 76BC8105 AE34BDB7
15CF0203 010001A3 72307030 0F060355 1D130101 FF040530 030101FF 301D0603
551D1104 16301482 1242454E 4554544F 4E2D3153 54464C52 2D415030 1F060355
1D230418 30168014 EE87BD76 491710D6 66CB597F 40D14C5B BD380E5E 301D0603
551D0E04 160414EE 87BD7649 1710D666 CB597F40 D14C5BBD 380E5E30 0D06092A
864886F7 0D010104 05000381 81002B48 702D2B54 C3254447 083F0303 23B5D303
40028EDC DFB13D91 6609B86E B7A128FC 241F1AA4 2AF575CE 631A84FA A10C4B05
B778DF8B FE6CB872 D7C4EAAF 59BA2104 86DA2A5A 08DDC234 3B4974E4 84746AD8
032CC895 077CBBA6 CFB4F2B0 C9AA9FBC 9C16E874 4B2399CD 81F0F815 8CEEBB07
D2A15526 26843037 F8216D96 527A
quit
username Cisco password 7 F56GFH45@^$@
bridge irb
interface Dot11Radio0
no ip address
no ip route-cache
encryption key 1 size 40bit 7 BE665G23128CFE transmit-key
encryption mode wep mandatory
ssid XXXX
speed basic-1.0 2.0 5.5 11.0 6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0 m0. m1. m2. m3. m4. m5. m6. m7. m8. m9. m10. m11. m12. m13. m14. m15.
station-role root
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
bridge-group 1 spanning-disabled
interface Dot11Radio1
no ip address
no ip route-cache
encryption key 1 size 40bit 7 3046778GHN5G4527E9D transmit-key
encryption mode wep mandatory
ssid XXXX
antenna gain 128
no dfs band block
speed basic-6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0 m0. m1. m2. m3. m4. m5. m6. m7. m8. m9. m10. m11. m12. m13. m14. m15.
channel dfs
station-role root
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
bridge-group 1 spanning-disabled
interface GigabitEthernet0
no ip address
no ip route-cache
duplex auto
speed auto
bridge-group 1
no bridge-group 1 source-learning
bridge-group 1 spanning-disabled
interface BVI1
ip address 192.168.1.7 255.255.255.0
no ip route-cache
ip default-gateway 192.168.1.3
ip http server
ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
snmp-server view dot11view ieee802dot11 included
snmp-server community public view dot11view RO
snmp-server location First Floor
snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart
snmp-server enable traps tty
snmp-server enable traps entity
snmp-server enable traps disassociate
snmp-server enable traps deauthenticate
snmp-server enable traps authenticate-fail
snmp-server enable traps dot11-qos
snmp-server enable traps switch-over
snmp-server enable traps rogue-ap
snmp-server enable traps wlan-wep
snmp-server enable traps config-copy
snmp-server enable traps config
snmp-server enable traps syslog
snmp-server enable traps cpu threshold
snmp-server enable traps aaa_server
snmp-server host 192.168.1.10 public
bridge 1 route ip
line con 0
line vty 0 4
password 7 094F5JG59GBHGA0A
login
end
Waiting for the suggestons ..

Did you plug antennas on the AP ?
Can you take a show dot11 assoc all on the AP command line so that we can see the signal strenght ?
Does this happen only on b/g/n radio or also on a/n radio ?
Nicolas

Similar Messages

Cisco Prime Infrastructure 1.2 and Aironet 1250 + VSS issues

Hi,
I am new to the NCS implementations and configurations. I have one very specific case with Cisco Prime Infrastructure 1.2 and autonomnous APs and several issues with Cisco VSS on 6500 switches.
So here is the version from Prime:
NCS/admin# show version
Cisco Application Deployment Engine OS Release: 2.0
ADE-OS Build Version: 2.0.1.038
ADE-OS System Architecture: x86_64
Copyright (c) 2005-2010 by Cisco Systems, Inc.
All rights reserved.
Hostname: NCS
Version information of installed applications
Cisco Prime Network Control System
Version : 1.2.1.012
IOS version on our APs (which are autonomnous) is:
AP-N-1>show ver
Cisco IOS Software, C1250 Software (C1250-K9W7-M), Version 12.4(25d)JA1, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Thu 11-Aug-11 03:23 by prod_rel_team
Well the issue what we have now is that access point has been added but its not recognized by the NCS prime. I have tried all three versions of SNMP but I get the same result. The SNMP configuration is valid since I use the same for my switching infrastructure. When I enter "debug snmp packets" and "terminal monitor" I can see the SNMP communication between Prime and Aironet 1250 which is standalone.
When I switch to Lifecycle theme and go to Operate > Device Monitor Center I see all devices I have added. The Aironet 1250 is reachable but under collection status I get Managed with Warnings. When I hover over with my mouse I get "None available".
I have successfully added my switching infrastructure in total, which is operating perfectly for Catalyst 2960/3650/3750/4500 series but for 6500 under VSS I have some warnings. The device is recognized by the system which is excellent and all is operational. I get the following errors under Collection Status:
feature_sensor
SNMP request timed out
feature_powerSupplyFanStatus-6k
SNMP request timed out
IdentityCapability
The device is unreachable.
feature_flashdevice
SNMP request timed out
sam_ipsla_feature
The device is unreachable.
What can be done to resolve these issues ? I have attached a screenshot of this particular issue. The affected access point is 172.16.165.241.
Predrag Petrovic

Hi rajeeshp,
Currently I am not allowed to upgrade it because of internal procedures involved in upgrading a specific piece of software (obtaining permissions from various departments). Is it free to upgrade from 1.2 to 1.3 or there is a specific charge for that.
Predrag Petrovic

4 Aironet 1250's and a controller?

Hi guys,
I'm about to order a four Aironet 1250's and a 2106 Wireless LAN Controller. From what I've read, I'll need the controller to manage the APs if I want them all to offer the same broadcast domain and subnet, and offer roaming to the users. Often times what I read and understand turns out to have little to do with reality, so my question is, am I correct about this?
Thanks in advance!
Joe

http://www.cisco.com/en/US/docs/wireless/controller/4.2/configuration/guide/c42ovrv.html#wp1133151
These hardware features are not supported on 2000 and 2100 series controllers:
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Note Ports 7 and 8 on 2100 series controllers are PoE ports.
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•External web authentication web server list
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•Cranite
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•Link aggregation (LAG)

Unable to Connect to Cicso Aironet 1250

My office just bought the Cisco Aironet 1250 and I am task to set it up. Right now, I am unable to connect to AP even when it is configured as Open Authentication without encryption. Tried using both laptops and our products to no avail. The same laptops and products are able to connect to other wireless routers So far, only my Linksys Wireless-G USB network Adapter is able to detect it.
We are very puzzled by this because we are able to setup and connect to it initially. But when we try to reconfigure it to another setting, everything starts to fail. We have tried doing factory default.
The AP is connect only to a Windows 2003 Server running DHCP and IAS. Appreciate if someone can help me on this. Thanks

Hi All,
Here are screen capture of my configuration
http://img.photobucket.com/albums/v146/tiger3687/Cisco%20AP%201250/ExpressSetup.jpg
http://img.photobucket.com/albums/v146/tiger3687/Cisco%20AP%201250/Security-EncryptionManager.jpg
http://img.photobucket.com/albums/v146/tiger3687/Cisco%20AP%201250/Security-EncryptionManager.jpg
http://img.photobucket.com/albums/v146/tiger3687/Cisco%20AP%201250/Security-SSIDManager02.jpg
http://img.photobucket.com/albums/v146/tiger3687/Cisco%20AP%201250/Security-SSIDManager03.jpg
http://img.photobucket.com/albums/v146/tiger3687/Cisco%20AP%201250/Security-SSIDManager03.jpg
http://img.photobucket.com/albums/v146/tiger3687/Cisco%20AP%201250/Security-SSIDManager03.jpg
http://img.photobucket.com/albums/v146/tiger3687/Cisco%20AP%201250/Security-ServerManager.jpg

Snow Leopard - Latency issues when waking from sleep

I own two macs ('09 mini and unibody macbook), both of which connect wirelessly to an airport extreme N router. Since upgrading to Snow Leopard I have been dealing with terrible latency issues when the computers wake from sleep. Ping times from local servers increase from around 23ms to 220ms and webpages load slowly. A quick reboot solves the issue. Connecting directly to the airport extreme with a patch cable also solves the latency issue so I know it's just with wireless.
Has anyone else experienced this problem since upgrading and, if so, what are you doing to solve the issue?
Edit: Samples of ping times...before and then after a reboot:
BEFORE:
Ping has started…
PING www.l.google.com (64.233.169.147): 56 data bytes
64 bytes from 64.233.169.147: icmp_seq=0 ttl=238 time=306.921 ms
64 bytes from 64.233.169.147: icmp_seq=1 ttl=238 time=227.929 ms
64 bytes from 64.233.169.147: icmp_seq=2 ttl=238 time=149.819 ms
64 bytes from 64.233.169.147: icmp_seq=3 ttl=238 time=70.753 ms
64 bytes from 64.233.169.147: icmp_seq=4 ttl=238 time=299.572 ms
64 bytes from 64.233.169.147: icmp_seq=5 ttl=238 time=221.037 ms
64 bytes from 64.233.169.147: icmp_seq=6 ttl=238 time=142.583 ms
64 bytes from 64.233.169.147: icmp_seq=7 ttl=238 time=63.197 ms
64 bytes from 64.233.169.147: icmp_seq=8 ttl=238 time=292.738 ms
64 bytes from 64.233.169.147: icmp_seq=9 ttl=238 time=214.157 ms
--- www.l.google.com ping statistics ---
10 packets transmitted, 10 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 63.197/198.871/306.921/85.201 ms
AFTER:
Ping has started…
PING www.l.google.com (xxx.xxx.xxx.xxx): 56 data bytes
64 bytes from xxx.xxx.xxx.xxx: icmp_seq=0 ttl=47 time=46.076 ms
64 bytes from xxx.xxx.xxx.xxx: icmp_seq=1 ttl=47 time=45.177 ms
64 bytes from xxx.xxx.xxx.xxx: icmp_seq=2 ttl=47 time=44.649 ms
64 bytes from xxx.xxx.xxx.xxx: icmp_seq=3 ttl=47 time=46.317 ms
64 bytes from xxx.xxx.xxx.xxx: icmp_seq=4 ttl=47 time=45.886 ms
64 bytes from xxx.xxx.xxx.xxx: icmp_seq=5 ttl=47 time=45.180 ms
64 bytes from xxx.xxx.xxx.xxx: icmp_seq=6 ttl=47 time=45.899 ms
64 bytes from xxx.xxx.xxx.xxx: icmp_seq=7 ttl=47 time=46.236 ms
64 bytes from xxx.xxx.xxx.xxx: icmp_seq=8 ttl=47 time=45.281 ms
64 bytes from xxx.xxx.xxx.xxx: icmp_seq=9 ttl=47 time=44.900 ms
--- www.l.google.com ping statistics ---
10 packets transmitted, 10 packets received, 0.0% packet loss
round-trip min/avg/max/stddev = 44.649/45.560/46.317/0.561 ms
Message was edited by: mikespug

I use Ethernet so I cannot comment but have you tried trashing the airport pref.plist and removed the preferred networks in the network set up in System Preferences and then set up the wifi connection again?
This seems to help with a lot of airport problems on this forum.

Cisco Aironet 1250 - How to bridge two AP's and get Non-root to talk to Root AP

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      I have two buidlings acroos the street from each other. I have two Cisco Aironet 1250 wireless AP's with the first one going in the main building with network backbone. The Second AP goes across the street with the other wired network segment. Both AP's have long range antenas 2.4 GHZ on top of each building. I have configured the 1st one as the Root Bridge. The one across the street is configured as non-root bridge. I have both AP's configured with the same WEP key and also with the same SSID name with both set to broadcast it.   I am still unsure and confused as to how I get the non-root bridge to talk to and use the root bridge to get on the main network.
        1- It’s main to use the Root parent Mac address.
        2- Is there another config that I am missing to get the signal?
Note: I still not getting any signal from the root although distance between root and non-root is 330m
My root antenna is AIR-ANT24120 and non-root antenna is AIR-ANT1949 and attached files is my configuration files
Thank you.

1. How are the AIR-ANT24120 and the AIR-ANT1949 installed?
the AIR-ANT24120 is connected virtically on tower far 11m from the earth and AIR-ANT1949 is connected horizontally on tower far 10m from the earth
2. What is the distance between both APs?
350 m
3. Do you have clear line-of-sight between the two?
there is one tanker in the middle between them but it's far 7m from the earth
4. Is the two APs properly aligned?
i think yes and changed the aligned many times without any news (I don't have any tools for alignment)
5. Which point are the antennas connected to? Primary, Secondary or middle?
I tried in the primary and secondary but never tried the middle antenna
Thanks

Aironet 1250 Configuration Help

Hello to all,
I'm an vmware\linux system administrator with very low skills in networking, I just bought 3 Cisco Aironet 1250 2.4ghz + 5ghz for my testing network and I need help to configure them.
Scenario:
1 - I have 3 Cisco Aironet 1250
2 - I want to create 2 wifi networks, SSID guest (vlan 11) and SSID production (vlan 1) in 2.4ghz + 5ghz
2a- I want to configure security WPA2-PSK without RADIUS Server.
3 - Aironet 1250 # 1 is connected to ethernet vlan1 (production)
4 - Aironet 1250 # 2 is connected to ethernet vlan11 (guest)
5 - Aironet 1250 # 3 is connected to ethernet vlan1 (production)
These are the first configuration commands found:
configureno ip domain-lookupline vty 0 4no exec-timeoutenableconfigure terminalinterface dot11radio 0encryption vlan 1 mode ciphers aes-ccmssid Productionvlan 1authentication openauthentication key-management wpa version 2wpa-psk ascii password1guest-modeend interface dot11radio 1encryption vlan 11 mode ciphers aes-ccmssid Guestvlan 11authentication openauthentication key-management wpa version 2wpa-psk ascii password2guest-modeend
When I try to set the repeater configuration webinterface tells me configuration errors.
Any help is welcome, sorry for my newbie!
Thanks a lot!

Since each AP is connected via Ethernet, you don't need to set any as a repeater. Here are some links that show you what you need to have multiple SSID's and multiple vlans.
http://www.cisco.com/en/US/docs/wireless/access_point/12.2_11_JA/configuration/guide/s11ssid.html
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a0080665ceb.shtml
Tech Guides
http://www.cisco.com/en/US/products/hw/wireless/ps4570/prod_configuration_examples_list.html
Sent from Cisco Technical Support iPhone App

Aironet 1250

I have an interesting problem. I have an aironet 1250. For months my wireless clients has been connecting with no problems. One day there was a power failure, don't remember making any chnages which I should of saved. After, all of my equipment rebooted with no problems. Now I'm seeing my 802.11N clients having connectivity problems. After 10 to 40 mins I believe they get logout, but the client don't get updated to this. The G and the B no problems. Some are Intel chip sets and some are apples base computers.
Anyone seen this?
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname blackhole
aaa new-model
aaa group server radius rad_eap
aaa group server radius rad_mac
aaa group server radius rad_acct
aaa group server radius rad_admin
aaa group server tacacs+ tac_admin
aaa group server radius rad_pmip
aaa group server radius dummy
aaa authentication login eap_methods group rad_eap
aaa authentication login mac_methods local
aaa authorization exec default local
aaa accounting network acct_methods start-stop group rad_acct
aaa session-id common
clock timezone -0500 -5
clock summer-time -0400 recurring
ip domain name javabeans
ip ssh version 2
dot11 ssid JavaBeans
authentication open
authentication key-management wpa version 2
guest-mode
wpa-psk ascii 7 033E5D060F0EB78723C3E1815142B053225535E52754556204D116C577F784846032369512E0C40553B2301080C5219177A683E16
dot11 ids mfp distributor
dot11 ids mfp detector
dot11 ids mfp generator
power inline negotiation prestandard source
bridge irb
interface Dot11Radio0
no ip address
no ip route-cache
encryption mode ciphers aes-ccm
ssid JavaBeans
antenna gain 2
speed basic-1.0 basic-2.0 basic-5.5 basic-11.0 basic-6.0 basic-9.0 12.0 18.0 24.0 36.0 48.0 54.0 m0. m1. m2. m3. m4. m5. m6. m7. m8. m9. m10. m11. m12. m13. m14. m15.
packet retries 128
station-role root
l2-filter bridge-group-acl
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 input-address-list 750
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
bridge-group 1 spanning-disabled
interface Dot11Radio1
no ip address
no ip route-cache
encryption mode ciphers aes-ccm
ssid JavaBeans
antenna gain 3
dfs band 1 2 3 4 block
speed basic-6.0 9.0 12.0 18.0 24.0 36.0 48.0 54.0 m0. m1. m2. m3. m4. m5. m6. m7. m8. m9. m10. m11. m12. m13. m14. m15.
channel width 40-above
channel 5180
station-role root
no dot11 extension aironet
l2-filter bridge-group-acl
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 input-address-list 750
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
bridge-group 1 spanning-disabled
interface GigabitEthernet0
no ip address
no ip route-cache
duplex auto
speed auto
bridge-group 1
no bridge-group 1 source-learning
bridge-group 1 spanning-disabled
interface BVI1
ip address 10.5.15.1 255.255.0.0
ip helper-address 10.5.20.1
no ip route-cache
ip default-gateway 10.5.1.1
ip http server
no ip http secure-server
ip http help-path http://www.cisco.com/warp/public/779/smbiz/prodconfig/help/eag
ip radius source-interface BVI1
logging history size 50
logging history notifications
logging 10.5.20.1
snmp-server community java RO
radius-server attribute 32 include-in-access-req format %h
radius-server vsa send accounting
bridge 1 route ip
line con 0
session-timeout 30
line vty 0 4
session-timeout 30
sntp server 10.5.1.1
sntp broadcast client
end

this is what I got from the AP
2009-04-17 15:59:47 Local7.Info 10.5.15.1 214: Apr 17 19:59:46.885: %DOT11-6-ASSOC: Interface Dot11Radio0, Station blackhole 0013.e871.5b29 Associated KEY_MGMT[WPAv2 PSK]
2009-04-17 15:59:52 Local7.Info 10.5.15.1 215: Apr 17 19:59:51.969: %DOT11-6-DISASSOC: Interface Dot11Radio0, Deauthenticating Station 0013.e871.5b29 Reason: Sending station has left the BSS
2009-04-17 16:00:55 Local7.Info 10.5.15.1 216: Apr 17 20:00:54.298: %DOT11-6-ASSOC: Interface Dot11Radio0, Station blackhole 0013.e871.5b29 Associated KEY_MGMT[WPAv2 PSK]
2009-04-17 17:04:56 Local7.Warning 10.5.15.1 218: Apr 17 21:04:55.640: %DOT11-4-CCMP_REPLAY: AES-CCMP TSC replay was detected on a packet (TSC 0x102313) received from 0013.e871.5b29.
2009-04-17 17:05:24 Local7.Warning 10.5.15.1 219: Apr 17 21:05:23.570: %DOT11-4-CCMP_REPLAY: AES-CCMP TSC replay was detected on a packet (TSC 0x10C31F) received from 0013.e871.5b29.
it looks like the clients reconnect 30mins later after, what ever happens.

Aironet 1250 AP

Will the Cisco Aironet 1250 (802.11n) only require an Firmware upgrade after it has been approved for use and gets past draft 2.0? Im thinking of purchasing for testing but want to make sure that being that its in its early stages that the code will only need to be upgraded once the standards have been created.
Anyone know?
Thanks!

Hi Adam,
Have a look at these answers from Cisco;
Q. What is the procedure for upgrading radios in the Cisco Aironet 1250 Series Access Points once future technologies become available?
A. The Cisco Aironet 1250 Series was designed as a modular and upgradable access point platform. When new radio modules become available, the old radio module may easily be removed and replaced in the field.
Q. Will Cisco guarantee that the Cisco Aironet 1250 Series can be upgraded to support the final 802.11n standard?
A. Cisco cannot guarantee that the current Cisco Aironet 1250 IEEE 802.11n draft 2.0 standard radio modules can be software-upgraded to support the final 802.11n standard. However, the modularity of the Cisco Aironet 1250 helps ensure that should the final 802.11n standard require a hardware modification, the impact will be limited to just the radio modules, and will not require a change to the access point. The Cisco Aironet 1250 Series radio modules are field-upgradeable and easy to change.
Investment protection: The Cisco Aironet 1250 Series is a powerful, modular and upgradeable platform that provides support for the IEEE 802.11n draft 2.0 standard today. Platform modularity ensures a smooth migration path to emerging higher-performance wireless technologies and future advanced services.
From this good Q & A doc;
http://www.cisco.com/en/US/products/ps6973/products_qanda_item0900aecd806b7c82.shtml
Hope this helps!
Rob

Cisco Aironet 1250 basic setup questions

Hi,
I'm going to be three Aironet 1250's within a building. There is not going to be a wireless controller, the AP's are all going to be standalone. I am going to set them all up the same, with WPA2 wireless encryption. My question is, is it important/beneficial to add configuration to the AP's so they are aware of each other (for roaming perhaps)? If so, what is this technology called and could someone point me towards a section of a guide that could illustrate this?
Or am I good with just configuring 3 standalone AP's as is.
Any other pointers are welcome.
Thanks!

Hi,
On Autonomous APs you can use Wireless Domain Services (WDS) technology which allows the APs to be aware of each other and make roaming faster withouth needing full authentication each time the clients move from one AP to the other.
Basically you configure the same SSIDs on all 3 APs, then only one will act as primary WDS.
The primary WDS will be responsible for the communication between the clients and the RADIUS server, and the infrastructure APs will simply bypass all the info from the clients to the primary WDS and vice-versa.
Evenually you can configure standby WDS with different priorities so that in case of the primary WDS goes down, another AP assumes the role of active WDS.
Configuration Example via AP GUI:
http://www.cisco.com/en/US/products/hw/wireless/ps458/products_configuration_example09186a008059a559.shtml.
In attach you can find an example of config using WDS and Infra APs. You will find example to configure open ssid, psk, and eap using WPA2.
3 diferent vlans.
Clients authenticate against External RADIUS Server and APs authenticate on local RADIUS for WDS.
HTH,
Tiago

Antenna direction for Aironet 1250

Hi,
What is the recomended antenna direction for Aironet 1250 model? We have three antennas. And we have no choice but to fix the base device on the wall of our office. So the antennas are looking like coming out of the wall towards the office open space. All uses use notebook which is on the horizontal platforms of tables. Is this the direction / orientation correct of notebooks and aironet antennas. Or do we need to turn the antennas in the vertical direction.
DO we have any best practises available fro antenna direction on cisco.com ?
If yes please let me know the URL.
Thanks in advance.
Subodh

You should have then vertical. There are antennas that are dipole that are not fixed position. This will allow you to have them in a vertical position rather than horizontal.
http://www.cisco.com/en/US/prod/collateral/wireless/ps7183/ps469/product_data_sheet09186a008008883b.html
Here are a list of the di-pole.
AIR-ANT4941
AIR-ANT2422DW-R
AIR-ANT5135D-R
AIR-ANT5135DW-R

Aironet 1250 in lightweight mode?

Can the Aironet 1250 802.11n WAPs be made to run in lightweight mode like the 1240's can?
Been poking around the cisco site and cant find anything that clearly says yes or no.
thanks
e-

Y'sure can. Here's a link to show you how it's done:
1. The EASY way:
Upgrading Autonomous Cisco Aironet Access Points to Lightweight Mode
www.cisco.com/en/US/docs/wireless/access_point/conversion/lwapp/upgrade/guide/lwapnote.html
2. The CLI way:
Requirements:
â¢ Image file (The recovery file has the prefix ârcvâ in the image name, such as c1200-rcvk9w7-tar.122-15.JA.tar);
â¢ AP is connected to the Wireless LAN Controller; and
â¢ AP can ping the TFTP server where the image is located.
Procedure
1. Copy the recovery file to the AP using the following command:
archive tar /x tftp:/// flash:
2. Let the AP boot on this image:
boot system flash://.bin
3. Reboot the AP.
OPTIONAL
â¢ DO NOT ALLOW THE AP TO JOIN THE WIRELESS LAN CONTROLLER.
â¢ IF POSSIBLE, type the following commands:
ï¾ clear lwapp private-config (This will bring the AP to factory default.);
ï¾ clear lwapp ap ip address
ï¾ clear lwapp ap hostname
ï¾ clear lwapp ap controller ip address
4. Let the AP connect to the Wireless LAN controller.
OPTIONAL
If an AP refuses to join the Wireless LAN Controller, type the following command from the AP:
lwapp ap controller ip address
Hope this helps.

High latency issue of an evening whilst gaming.

Hiya`s Peeps, Having recently switched to BT from Virgin (this being only my third day as a customer) as the VM service for gaming in my area (Sth Manchester) on thier 50mb package was simply not viable due to over utilisation issues, I now find myself experiencing high latency issues with my BT service.
All three evenings have been lost to me as my in game latency (World of Warcraft) has rose upto 3500ms with occasional disconnections.
Also strange was that was after the BB was first switched on I had a consistent in-game latency of 24ms home and 24ms world, this lasted around 8 hours until I experienced my first lag spike, I was disconnected and when I eventually was able to get back in game, some 20 minutes or so later, my home and world latency had changed to 42/45 (still playable ) but every 10 to 15 minutes the world latency would again rise to around 3k and above and I would again be disconnected from the server.
I do apologise for the lack of any technical detail within this post as I simply do not understand such and struggle terribly with it, I am very happy with both my speed and ping tests, both being excellent in comparison to that that I would see when using the VM service.
What I am after I guess is advice from the community on how to get the best from BT bb for playing my online game, this connection is only used for World of Warcraft and very light reading on the www, I do not have a phone connected to this line and use no wireless connections with it at all, this PC (hard wired) is the only contraption connected.
Any help and advice will be greatly appreciated, Thankyou
Les

welcome to the forum
there is a 10 day training period after your connection is activated during which time you need to leave the router connected with no manual resets. The router may reset (often) during training but that is normal as the equipment in the exchnage tries to find the best stable connection for your line.
after the training period is complete and you have a stable connection then you can get the latency changed to 'fast' if yours latency is 'interleaved' changing to fast can make your line less stable than interleaved but it is the choice of gamers
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Time Capsule stuck at Preparing for Backup, and internet TC latency issue

I have an iMac that backs up to my 1TB Time Capsule. I have had it since March. Suddenly it stopped backing up. It get's stuck at "preparing for backup" and never actually completes a backup.
I am also experiencing a HUGE latency issue with my internet connection. I am constantly having to use the 'refresh' page button in Safari.
help....

TB,
*_Time Machine May Report "Preparing..." For a Long Time_*
Consider these factors regarding an extended period of "Preparing...". Consider each topic separately and do not attempt to act on all of them at once.
*Recent Crash or Other Major System Event* (Deep Traversal)
The reasons for this process are described in an article by George Schreyer. “During the preparation step it checks the FSEvents log for consistency. If it determines that something isn't quite right it has to rescan the whole disk. This can take quite awhile. A full rescan is always triggered by a crash, an unplanned shut down event or by booting from some other bootable disk between backups…. After a crash, Time Machine must scan the whole disk to determine what it has to do because it cannot trust the information that it left behind. Connected via an Ethernet connection, this phase would typically take 20 minutes on an older PowerBook. Being connected wirelessly stretches this phase out to over 3 hours.” [http://www.girr.org/mac_stuff/backups.html]
According to the following KB article it can sometimes take a very long time if Time Machine begins this “deep traversal” and has to compare data inventories. This may apply to your situation, particularly if many Gigs of data are involved. (http://support.apple.com/kb/TS1516)
*Anti-Virus Software*
Running anti-virus software can interfere with the backup process. Either disable it altogether, or try the suggestion outlined here, “If you use third-party anti-virus scanning software and have issues, make sure your Time Machine back up folder (Backups.backupdb on the Time Machine disk) is excluded from virus scanning.” (http://support.apple.com/kb/TS1516)
*Software Updates* #
Installing new software, upgrading existing software, or updating Mac OS X system software can create major changes in the structure of your Macs directories. Time Machine will backup every file that has changed since the installation.
If you take a look at the Console logs Time Machine may be reporting that your backups need "deep traversal". That's fine. Time Machine knows what is wrong and how to fix it. If you have a great deal of data, it may take quite awhile.
After an OS update (like 10.5.5) Time Machine realizes the system no longer matches what it looked like during the previous backup. So it has determined that it's earlier catalogue of what-should-be-where is 'untrustable'. So it is going to go item-by-item comparing the before and after of your system. If you have just performed an OS Update then Time Machine knows what it's doing - let it do it!
*Spotlight Keeps Indexing Backup Drive* #
It may be that Time Machine can’t proceed or complete a backup due to a Spotlight indexing error. During this period, take a look at the Spotlight icon in the upper right corner of your screen. Is there a tiny dot pulsating in the center of the spyglass? Click on the icon. Is there a progress bar displayed? Generally Spotlight indexing is a good thing. But at time it may hang and never progress, preventing backups from taking place.
Go to System Prefs --> Spotlight --> Privacy Tab.
Drag your Time Machine disk into the window. It should now be among the items to exclude from indexing.
Now quit System Prefs.
Reopen System Prefs and remove ("-") the Time Machine disk from the window.
This should clear out Spotlights cache. Naturally, Spotlight should begin indexing again (maybe even for a few hours depending on how much data there is), but it should eventually stop.
*Reboot Time Capsule* #
Stop the backup from the Time Machine menu.
When the Time Machine icon stops spinning, unplug the TC from the wall outlet.
Wait 10-15 seconds.
Re-plug it in again.
After it has restarted (30-60 seconds), attempt another backup.
Time Machine will report “Preparing…” again, but it shouldn’t be lasting more than a couple of hours.
Let us know if any of the suggestions above helped in your case.
Cheers!

T530 and win8 latency issues

I have a Thinkpad T530 (2392-3JG) with a clean installation of Windows 8. I have been experiencing some gaming issues, when once in a while my ping rises to 500ms. I tested the issue by pinging my default gateway, and the lowest ping was 3ms, climbing to 500ms once every 15 seconds or so. I tried the same test on my win7 installation on another partition (but on the same machine), it does something similar, while ping jums "only" to about 300ms. On my sister's computer I get a constant 1ms ping to my default gateway, as it should. Therefore I think the problems must be somewhere in the drivers.
I downloaded the Intel Wireless LAN (11agn) drivers from this site: http://support.lenovo.com/en_US/downloads/detail.page?DocID=HT072084

I followed these steps and my latency issue did improve by about 20% - 25% so thank you, I'm now getting a PING of around 75ms - 80ms.
But I would also like to know if there are any changes I can make to the WGA600N Gaming Adapter that would decrease my PING time even further.
Since I decreased the Beacon Interval and Threshold values on the router, should I also decrease them on the advanced settings page of the gaming adapter?
On this advanced settings page there are also the options of Aggregation enabling, Short GI enabling, and Extra Wireless Protection -- Which of these boxes, if any, should I have checked?
Also, should Frame Bursting be enabled on the router, and would enabling DMZ or QoS help any? If so, would I want to put the gaming adapter's IP address/MAC address into the DMZ/QoS or the PS3's IP address/MAC address?
Thank you for any further assisstance you can lend!

Wireless aironet 1250 agn latency issue

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