Re: Ipad users are getting 1mpbs Wireless bandwidth in LAN

vinodjad1234 · ‎10-10-2013

Hi Experts ,

I have unfied wireless LAN and we have nealry 200 windows users with 5500 controller and 3500 AP's .

However we have Ipad for some of the users recently who are facing issue with wireless bandwidth ...they are getting around 1-2 mbps ...not sure why ?

Do i need to modify anything in controller for this issue ?

Thanks ,

Vinod

Rasika Nayanajith · ‎10-10-2013

Provide the following output of your WLC. Then we can tell you if anything to be modified

show 802.11b

show 802.11a

show wlan

HTH

Rasika

vinodjad1234 · ‎10-10-2013

Hi Rasika,

Thanks for your reply ...

(Cisco Controller) >show 802.11b

802.11b Network.................................. Enabled

11gSupport....................................... Enabled

11nSupport....................................... Enabled

802.11b/g Operational Rates

802.11b/g 1M Rate............................ Mandatory

802.11b/g 2M Rate............................ Mandatory

802.11b/g 5.5M Rate.......................... Mandatory

802.11b/g 11M Rate........................... Mandatory

802.11g 6M Rate.............................. Supported

802.11g 9M Rate.............................. Supported

802.11g 12M Rate............................. Supported

802.11g 18M Rate............................. Supported

802.11g 24M Rate............................. Supported

802.11g 36M Rate............................. Supported

802.11g 48M Rate............................. Supported

802.11g 54M Rate............................. Supported

802.11n MCS Settings:

MCS 0........................................ Supported

MCS 1........................................ Supported

MCS 2........................................ Supported

MCS 3........................................ Supported

MCS 4........................................ Supported

MCS 5........................................ Supported

MCS 6........................................ Supported

MCS 7........................................ Supported

MCS 8........................................ Supported

MCS 9........................................ Supported

MCS 10....................................... Supported

MCS 11....................................... Supported

MCS 12....................................... Supported

MCS 13....................................... Supported

MCS 14....................................... Supported

MCS 15....................................... Supported

MCS 16....................................... Supported

MCS 17....................................... Supported

MCS 18....................................... Supported

MCS 19....................................... Supported

MCS 20....................................... Supported

MCS 21....................................... Supported

MCS 22....................................... Supported

MCS 23....................................... Supported

802.11n Status:

A-MPDU Tx:

Priority 0............................... Enabled

--More-- or (q)uit

Priority 1............................... Disabled

Priority 2............................... Disabled

Priority 3............................... Disabled

Priority 4............................... Enabled

Priority 5............................... Enabled

Priority 6............................... Disabled

Priority 7............................... Disabled

Aggregation scheduler.................... Enabled

Realtime Timeout..................... 10

A-MSDU Tx:

Priority 0............................... Enabled

Priority 1............................... Enabled

Priority 2............................... Enabled

Priority 3............................... Enabled

Priority 4............................... Enabled

Priority 5............................... Enabled

Priority 6............................... Disabled

Priority 7............................... Disabled

Rifs Rx ..................................... Enabled

Guard Interval .............................. Any

Beacon Interval.................................. 100

CF Pollable mode................................. Disabled

CF Poll Request mandatory........................ Disabled

--More-- or (q)uit

CFP Period....................................... 4

CFP Maximum Duration............................. 60

Default Channel.................................. 1

Default Tx Power Level........................... 0

DTPC Status..................................... Enabled

Call Admission Limit ........................... 105

G711 CU Quantum ................................. 15

ED Threshold..................................... -50

Fragmentation Threshold.......................... 2346

PBCC mandatory................................... Disabled

RTS Threshold.................................... 2347

Short Preamble mandatory......................... Enabled

Short Retry Limit................................ 7

Legacy Tx Beamforming setting.................... Disabled

Traffic Stream Metrics Status.................... Disabled

Expedited BW Request Status...................... Disabled

World Mode....................................... Enabled

Faster Carrier Tracking Loop..................... Disabled

EDCA profile type................................ default-wmm

Voice MAC optimization status.................... Disabled

Call Admission Control (CAC) configuration

Voice AC - Admission control (ACM)............ Disabled

Voice Stream-Size............................. 84000

--More-- or (q)uit

Voice Max-Streams............................. 2

Voice max RF bandwidth........................ 75

Voice reserved roaming bandwidth.............. 6

Voice CAC Method.............................. Load-Based

Voice tspec inactivity timeout................ Disabled

CAC SIP-Voice configuration

SIP based CAC ................................ Disabled

SIP Codec Type ............................... CODEC_TYPE_G711

SIP call bandwidth: .......................... 64

SIP call bandwidth sample-size ............... 20

Video AC - Admission control (ACM)............ Disabled

Video max RF bandwidth........................ Infinite

Video reserved roaming bandwidth.............. 0

Best-effort AC - Admission control (ACM)...... Disabled

Background AC - Admission control (ACM)....... Disabled

Maximum Number of Clients per AP................. 200

802.11a Network.................................. Enabled

11nSupport....................................... Enabled

802.11a Low Band........................... Enabled

802.11a Mid Band........................... Enabled

802.11a High Band.......................... Enabled

802.11a Operational Rates

802.11a 6M Rate.............................. Mandatory

802.11a 9M Rate.............................. Supported

802.11a 12M Rate............................. Mandatory

802.11a 18M Rate............................. Supported

802.11a 24M Rate............................. Mandatory

802.11a 36M Rate............................. Supported

802.11a 48M Rate............................. Supported

802.11a 54M Rate............................. Supported

802.11n MCS Settings:

MCS 0........................................ Supported

MCS 1........................................ Supported

MCS 2........................................ Supported

MCS 3........................................ Supported

MCS 4........................................ Supported

MCS 5........................................ Supported

MCS 6........................................ Supported

MCS 7........................................ Supported

MCS 8........................................ Supported

MCS 9........................................ Supported

MCS 10....................................... Supported

MCS 11....................................... Supported

MCS 12....................................... Supported

MCS 13....................................... Supported

MCS 14....................................... Supported

MCS 15....................................... Supported

MCS 16....................................... Supported

MCS 17....................................... Supported

MCS 18....................................... Supported

MCS 19....................................... Supported

MCS 20....................................... Supported

MCS 21....................................... Supported

MCS 22....................................... Supported

MCS 23....................................... Supported

802.11n Status:

A-MPDU Tx:

Priority 0............................... Enabled

Priority 1............................... Disabled

Priority 2............................... Disabled

--More-- or (q)uit

Priority 3............................... Disabled

Priority 4............................... Enabled

Priority 5............................... Enabled

Priority 6............................... Disabled

Priority 7............................... Disabled

Aggregation scheduler.................... Enabled

Realtime Timeout..................... 10

A-MSDU Tx:

Priority 0............................... Enabled

Priority 1............................... Enabled

Priority 2............................... Enabled

Priority 3............................... Enabled

Priority 4............................... Enabled

Priority 5............................... Enabled

Priority 6............................... Disabled

Priority 7............................... Disabled

Rifs Rx ..................................... Enabled

Guard Interval .............................. Any

Beacon Interval.................................. 100

CF Pollable mandatory............................ Disabled

CF Poll Request mandatory........................ Disabled

CFP Period....................................... 4

CFP Maximum Duration............................. 60

Default Channel.................................. 36

Default Tx Power Level........................... 0

DTPC Status..................................... Enabled

Fragmentation Threshold.......................... 2346

TI Threshold..................................... -50

Legacy Tx Beamforming setting.................... Disabled

Traffic Stream Metrics Status.................... Disabled

Expedited BW Request Status...................... Disabled

World Mode....................................... Enabled

EDCA profile type................................ default-wmm

Voice MAC optimization status.................... Disabled

Call Admission Control (CAC) configuration

Voice AC:

Voice AC - Admission control (ACM)............ Disabled

Voice Stream-Size............................. 84000

Voice Max-Streams............................. 2

Voice max RF bandwidth........................ 75

Voice reserved roaming bandwidth.............. 6

Voice CAC Method ............................. Load-Based

Voice tspec inactivity timeout................ Disabled

CAC SIP-Voice configuration

SIP based CAC ................................ Disabled

SIP Codec Type ............................... CODEC_TYPE_G711

SIP call bandwidth ........................... 64

SIP call bandwith sample-size ................ 20

Video AC:

Video AC - Admission control (ACM)............ Disabled

Video max RF bandwidth........................ Infinite

Video reserved roaming bandwidth.............. 0

Best-effort AC - Admission control (ACM)...... Disabled

Background AC - Admission control (ACM)....... Disabled

Maximum Number of Clients per AP Radio........... 200

WLAN Identifier.................................. 4

Profile Name..................................... xxxxxxx

Network Name (SSID).............................. cccccccc

Status........................................... Enabled

MAC Filtering.................................... Disabled

Broadcast SSID................................... Enabled

AAA Policy Override.............................. Disabled

Network Admission Control

Client Profiling Status ....................... Disabled

Radius-NAC State............................... Disabled

SNMP-NAC State................................. Disabled

Quarantine VLAN................................ 0

Maximum number of Associated Clients............. 0

Maximum number of Clients per AP Radio........... 200

Number of Active Clients......................... 114

Exclusionlist Timeout............................ 60 seconds

Session Timeout.................................. Infinity

CHD per WLAN..................................... Enabled

Webauth DHCP exclusion........................... Disabled

Interface........................................ clients

Multicast Interface.............................. Not Configured

WLAN IPv4 ACL.................................... unconfigured

WLAN IPv6 ACL.................................... unconfigured

DHCP Server...................................... 10.x.x.x

DHCP Address Assignment Required................. Enabled

Static IP client tunneling....................... Disabled

Quality of Service............................... Silver

Scan Defer Priority.............................. 4,5,6

Scan Defer Time.................................. 100 milliseconds

WMM.............................................. Disabled

WMM UAPSD Compliant Client Support............... Disabled

Media Stream Multicast-direct.................... Disabled

CCX - AironetIe Support.......................... Enabled

CCX - Gratuitous ProbeResponse (GPR)............. Disabled

CCX - Diagnostics Channel Capability............. Disabled

Dot11-Phone Mode (7920).......................... Disabled

Wired Protocol................................... None

Passive Client Feature........................... Disabled

Peer-to-Peer Blocking Action..................... Disabled

Radio Policy..................................... All

DTIM period for 802.11a radio.................... 1

DTIM period for 802.11b radio.................... 1

Radius Servers

Authentication................................ 10.x.x.x 1812

Accounting.................................... Disabled

Dynamic Interface............................. Disabled

Local EAP Authentication......................... Disabled

Security

802.11 Authentication:........................ Open System

FT Support.................................... Disabled

Static WEP Keys............................... Disabled

802.1X........................................ Disabled

Wi-Fi Protected Access (WPA/WPA2)............. Enabled

WPA (SSN IE)............................... Enabled

TKIP Cipher............................. Enabled

AES Cipher.............................. Disabled

WPA2 (RSN IE).............................. Enabled

TKIP Cipher............................. Disabled

AES Cipher.............................. Enabled

Auth Key Management

802.1x.................................. Enabled

PSK..................................... Disabled

CCKM.................................... Disabled

FT-1X(802.11r).......................... Disabled

FT-PSK(802.11r)......................... Disabled

FT Reassociation Timeout................... 20

FT Over-The-DS mode........................ Enabled

GTK Randomization.......................... Disabled

SKC Cache Support.......................... Disabled

CCKM TSF Tolerance......................... 1000

Wi-Fi Direct policy configured................ Disabled

EAP-Passthrough............................... Disabled

CKIP ......................................... Disabled

Web Based Authentication...................... Disabled

Web-Passthrough............................... Disabled

Conditional Web Redirect...................... Disabled

Splash-Page Web Redirect...................... Disabled

Auto Anchor................................... Disabled

FlexConnect Local Switching................... Disabled

FlexConnect Local Authentication.............. Disabled

FlexConnect Learn IP Address.................. Enabled

Client MFP.................................... Optional

Tkip MIC Countermeasure Hold-down Timer....... 60

Call Snooping.................................... Disabled

Roamed Call Re-Anchor Policy..................... Disabled

SIP CAC Fail Send-486-Busy Policy................ Enabled

SIP CAC Fail Send Dis-Association Policy......... Disabled

KTS based CAC Policy............................. Disabled

Band Select...................................... Disabled

Load Balancing................................... Disabled

Multicast Buffer................................. Disabled

Mobility Anchor List

WLAN ID IP Address Status

------- --------------- ------

802.11u........................................ Disabled

Access Network type............................ Not configured

Network Authentication type.................... Not configured

Internet service............................... Disabled

HESSID......................................... 00:00:00:00:00:00

Hotspot 2.0.................................... Disabled

WAN Metrics configuration

Link status.................................. 0

Link symmetry................................ 0

Downlink speed............................... 0

Uplink speed................................. 0

--More-- or (q)uit

Mobility Services Advertisement Protocol....... Disabled

Please do let me know if I need to modify anything ....

Rasika Nayanajith · ‎10-10-2013

Hi Vinod,

I can see few modifications you have to do. Keep in mind thess changes will disturb users and therefore you have to do this during a maintenance outage window.

1. At the moment you have enable all low-data rates which is not a good thing. disable all data rates below 11Mbps. You can do that using following CLI commands on WLC (you can do this via GUI as well)

config 802.11b disable network

config 802.11b rate disabled 1

config 802.11b rate disabled 2

config 802.11b rate disabled 5.5

config 802.11b rate disabled 6

config 802.11b rate disabled 9

config 802.11b rate disabled 11

config 802.11b rate mandatory 12

config 802.11b enable network

config 802.11a disable network

y

config 802.11a rate disabled 6

config 802.11a rate disabled 9

config 802.11a enable network

2. You have disabled WMM on your WLAN network, which mean your client cannot get 802.11n speeds even though controller is supported these data rates. So you have to enable it.

config wlan disable 4

config wlan wmm allow 4

config wlan enable 4

3. Under WLAN security you have enable WPA/TKIP & WPA2/AES. I would leave it only for WPA2/AES. If client associate WPA/TKIP, then they can't get 802.11n speeds. To support 11n speeds you should have WPA2/AES & WMM enabled.

Once you do this test it again & see. You should have improved results

HTH

Rasika

**** Pls rate all useful responses ****

Abhishek Abhishek · ‎10-10-2013

With QoS, bandwidth can be managed more efficiently across LANs, which includes WLANs and WANs. This is how QoS provides enhanced and reliable network service:

Cisco Unified Wireless Products support WMM, a QoS system based on the IEEE 802.11e draft that has been published by the Wi-Fi Alliance.

The controller supports four QoS levels:

Platinum/Voice—Ensures a high quality of service for voice over wireless.

Gold/Video—Supports high-quality video applications.

Silver/Best Effort—Supports normal bandwidth for clients. This is the default setting.

Bronze/Background—Provides the lowest bandwidth for guest services.

vinodjad1234 · ‎10-11-2013

Hi ,

Thank you so much for replying with all the details ....

I will go ahead schedule the maintenance window for making above changes and revert you with the result.

Rasika Nayanajith · ‎10-11-2013

No worries... if that works rate our responses & mark this post as "answered" .....

Rasika

vinodjad1234 · ‎10-15-2013

Hi ,

Unfortunately we are getting the same speed i.e.1 Mbps .

Is there any settings to be changed in iPad devices ....

Thanks

Rasika Nayanajith · ‎10-15-2013

Try to download a file from your local LAN to a wireless device. That will prove the connectivity speed from wireless client to AP. In the above we do not know where the bottleneck is.

Anyway when you getting the above low performance please get the output of "show client detail " of your WLC to see the data rate client is connnected.

HTH

Rasika

vinodjad1234 · ‎10-15-2013

Hi ,

Please find details below for client data rates :

Client MAC Address............................... 38:0f:4a:x:xx:xx

Client Username ................................. SHAxxx

AP MAC Address................................... 44:e4:d9:84:ed:40

AP Name.......................................... INccccccccc

Client State..................................... Associated

Client NAC OOB State............................. Access

Wireless LAN Id.................................. 4

802.11u.......................................... Not Supported

BSSID............................................ 44:e4:d9:84:ed:4d

Connected For ................................... 2063 secs

Channel.......................................... 149

IP Address....................................... 10.x.x.x

IPv6 Address..................................... fex,x,x,6

Association Id................................... 2

Authentication Algorithm......................... Open System

Reason Code...................................... 1

Status Code...................................... 0

Client CCX version............................... No CCX support

Re-Authentication Timeout........................ 84350

QoS Level........................................ Silver

802.1P Priority Tag.............................. disabled

CTS Security Group Tag........................... Not Applicable

KTS CAC Capability............................... No

WMM Support...................................... Enabled

APSD ACs....................................... BK BE VI VO

Power Save....................................... OFF

Current Rate..................................... m7

Supported Rates.................................. 6.0,9.0,12.0,18.0,24.0,36.0,

............................................. 48.0,54.0

Mobility State................................... Local

Mobility Move Count.............................. 0

Security Policy Completed........................ Yes

Policy Manager State............................. RUN

Policy Manager Rule Created...................... Yes

Audit Session ID................................. 0a411e1200016387525cea01

IPv4 ACL Name.................................... none

IPv4 ACL Applied Status.......................... Unavailable

IPv6 ACL Name.................................... none

IPv6 ACL Applied Status.......................... Unavailable

Policy Type...................................... WPA2

Authentication Key Management.................... 802.1x

Encryption Cipher................................ CCMP (AES)

Management Frame Protection...................... No

EAP Type......................................... EAP-TLS

Interface........................................ xxxxx

Thanks

Rasika Nayanajith · ‎10-15-2013

Hi Vinod,

As you can see your iPad client is connected m7 (MCS7) data rates. Since iPad support single spacial stream this would be around 65Mbps. Even if your AP support multiple streams (2 in case of 3502) because of client limitation you cannot go anything above MCS7. (See below chart for detail)

In conclusion, your iPad connect to your wireless at least 65Mbps. Therefore it is not the bottleneck. If you doing this testing with internet, better to check what is the throughput you get on that service. Definetely issue is not wireless speed client get connected.

Without enabling WMM & WPA2/AES, you will never get these 802.11n data rates.

Hope it clears

Regards

Rasika

**** Pls rate all useful responses ****

Scott Fella · ‎10-15-2013

Edit: didn't see the other post

Repost your updated show WLAN

Sent from Cisco Technical Support iPhone App

-Scott
*** Please rate helpful posts ***

vinodjad1234 · ‎10-15-2013

Hi Scott,

Please output below :

WLAN Identifier.................................. 4

Profile Name..................................... xxxxx

Network Name (SSID).............................. xxxxx

Status........................................... Enabled

MAC Filtering.................................... Disabled

Broadcast SSID................................... Enabled

AAA Policy Override.............................. Disabled

Network Admission Control

Client Profiling Status ....................... Disabled

Radius-NAC State............................... Disabled

SNMP-NAC State................................. Disabled

Quarantine VLAN................................ 0

Maximum number of Associated Clients............. 0

Maximum number of Clients per AP Radio........... 200

Number of Active Clients......................... 84

Exclusionlist Timeout............................ 60 seconds

Session Timeout.................................. Infinity

CHD per WLAN..................................... Enabled

Webauth DHCP exclusion........................... Disabled

Interface........................................ xxxxx

Multicast Interface.............................. Not Configured

WLAN IPv4 ACL.................................... unconfigured

WLAN IPv6 ACL.................................... unconfigured

DHCP Server...................................... 10.x.x.x

DHCP Address Assignment Required................. Enabled

Static IP client tunneling....................... Disabled

Quality of Service............................... Silver

Scan Defer Priority.............................. 4,5,6

Scan Defer Time.................................. 100 milliseconds

WMM.............................................. Allowed

WMM UAPSD Compliant Client Support............... Disabled

Media Stream Multicast-direct.................... Disabled

CCX - AironetIe Support.......................... Enabled

CCX - Gratuitous ProbeResponse (GPR)............. Disabled

CCX - Diagnostics Channel Capability............. Disabled

Dot11-Phone Mode (7920).......................... Disabled

Wired Protocol................................... None

Passive Client Feature........................... Disabled

Peer-to-Peer Blocking Action..................... Disabled

Radio Policy..................................... All

DTIM period for 802.11a radio.................... 1

DTIM period for 802.11b radio.................... 1

Radius Servers

Authentication................................ 160.x.x.x 1812

Accounting.................................... Disabled

Dynamic Interface............................. Disabled

Local EAP Authentication......................... Disabled

Security

802.11 Authentication:........................ Open System

FT Support.................................... Disabled

Static WEP Keys............................... Disabled

802.1X........................................ Disabled

Wi-Fi Protected Access (WPA/WPA2)............. Enabled

WPA (SSN IE)............................... Disabled

WPA2 (RSN IE).............................. Enabled

TKIP Cipher............................. Disabled

AES Cipher.............................. Enabled

Auth Key Management

802.1x.................................. Enabled

PSK..................................... Disabled

CCKM.................................... Disabled

FT-1X(802.11r).......................... Disabled

FT-PSK(802.11r)......................... Disabled

FT Reassociation Timeout................... 20

FT Over-The-DS mode........................ Enabled

GTK Randomization.......................... Disabled

SKC Cache Support.......................... Disabled

CCKM TSF Tolerance......................... 1000

Wi-Fi Direct policy configured................ Disabled

EAP-Passthrough............................... Disabled

CKIP ......................................... Disabled

Web Based Authentication...................... Disabled

Web-Passthrough............................... Disabled

Conditional Web Redirect...................... Disabled

Splash-Page Web Redirect...................... Disabled

Auto Anchor................................... Disabled

FlexConnect Local Switching................... Disabled

FlexConnect Local Authentication.............. Disabled

FlexConnect Learn IP Address.................. Enabled

Client MFP.................................... Optional

Tkip MIC Countermeasure Hold-down Timer....... 60

Call Snooping.................................... Disabled

Roamed Call Re-Anchor Policy..................... Disabled

SIP CAC Fail Send-486-Busy Policy................ Enabled

SIP CAC Fail Send Dis-Association Policy......... Disabled

KTS based CAC Policy............................. Disabled

Band Select...................................... Disabled

Load Balancing................................... Disabled

Multicast Buffer................................. Disabled

Mobility Anchor List

WLAN ID IP Address Status

------- --------------- ------

802.11u........................................ Disabled

Access Network type............................ Not configured

Network Authentication type.................... Not configured

Internet service............................... Disabled

HESSID......................................... 00:00:00:00:00:00

Hotspot 2.0.................................... Disabled

WAN Metrics configuration

Link status.................................. 0

Link symmetry................................ 0

Downlink speed............................... 0

Uplink speed................................. 0

Mobility Services Advertisement Protocol....... Disabled

Thanks

Lin Guo · ‎10-15-2013

Install iPerf App onto your iPad, setup PC as a server on your LAN, see what speed you get from WiFi. You may get supprised.

Jacob Jennings · ‎10-21-2013

Go to Wireless > Access Points > Global Configuration.

On the middle right side, set the Global TCP Adjust MSS to 1363.

Let me know if this helps.