MCS display on Cisco WLC Prime

Anatolii Shavlovskyi · ‎01-28-2016

Hi,

wlc - 5508 v8.1

prime -3.0

testing throughput for 802.11ac i noticed that htc phone has max speed 105 MBps. same htc has 170 Mbps using 802.11ac from Dlink, Unify, Tp-link.

how can i check what msc level is used in for device?

how can i check number of spatial stream?

can i troubleshoot throughput issues?

thank you.

Leo Laohoo · ‎01-28-2016

how can i check what msc level is used in for device?  
how can i check number of spatial stream?

Post the complete output to the WLC CLI command of "sh client detail <HTC MAC address>".

What is the exact model of HTC & firmware version running?

Anatolii Shavlovskyi · ‎01-29-2016

phone: htc one m7 dual sim

android 5.0.2

(Cisco Controller) >show client detail 50:2e:5c:dd:dc:7c
Client MAC Address............................... 50:2e:5c:dd:dc:7c
Client Username ................................. 16573x10207234018954728@fbconnect
AP MAC Address................................... 64:d9:89:42:a2:d0
AP Name.......................................... Cisco_Window
AP radio slot Id................................. 1
Client State..................................... Associated
Client User Group................................ 16573x10207234018954728@fbconnect
Client NAC OOB State............................. Access
Wireless LAN Id.................................. 1
Wireless LAN Network Name (SSID)................. HotSpot
Wireless LAN Profile Name........................ HotSpot
Hotspot (802.11u)................................ Not Supported
BSSID............................................ 64:d9:89:42:a2:df
Connected For ................................... 44 secs
Channel.......................................... 112
IP Address....................................... 10.10.10.84
Gateway Address.................................. 10.10.10.1
Netmask.......................................... 255.255.255.0
IPv6 Address..................................... fe80::522e:5cff:fedd:dc7c
Association Id................................... 2
Authentication Algorithm......................... Open System
Reason Code...................................... 1

--More-- or (q)uit
Status Code...................................... 0
Session Timeout.................................. 86400
Client CCX version............................... No CCX support
QoS Level........................................ Silver
Avg data Rate.................................... 0
Burst data Rate.................................. 0
Avg Real time data Rate.......................... 0
Burst Real Time data Rate........................ 0
802.1P Priority Tag.............................. disabled
CTS Security Group Tag........................... Not Applicable
KTS CAC Capability............................... No
Qos Map Capability............................... No
WMM Support...................................... Enabled
APSD ACs....................................... BK BE VI VO
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
AAA Override ACL Name............................ Guest_Wi-Fi
AAA Override ACL Applied Status.................. Yes

--More-- or (q)uit
AAA Override Flex ACL Name....................... none
AAA Override Flex ACL Applied Status............. Unavailable
AAA URL redirect................................. none
Audit Session ID................................. c0a836ab0000010056ab350e
AAA Role Type.................................... none
Local Policy Applied............................. none
IPv4 ACL Name.................................... none
FlexConnect ACL Applied Status................... Unavailable
IPv4 ACL Applied Status.......................... Unavailable
IPv6 ACL Name.................................... none
IPv6 ACL Applied Status.......................... Unavailable
Layer2 ACL Name.................................. none
Layer2 ACL Applied Status........................ Unavailable
Client Type...................................... Simple IP
Client Type...................................... SimpleIP
mDNS Status...................................... Enabled
mDNS Profile Name................................ default-mdns-profile
No. of mDNS Services Advertised.................. 0
Policy Type...................................... N/A
Encryption Cipher................................ None
Protected Management Frame ...................... No
Management Frame Protection...................... No
EAP Type......................................... Unknown

--More-- or (q)uit
Interface........................................ hotspot
VLAN............................................. 856
Quarantine VLAN.................................. 0
Access VLAN...................................... 856
Local Bridging VLAN.............................. 856
Client Capabilities:
CF Pollable................................ Not implemented
CF Poll Request............................ Not implemented
Short Preamble............................. Implemented
PBCC....................................... Not implemented
Channel Agility............................ Not implemented
Listen Interval............................ 1
Fast BSS Transition........................ Not implemented
11v BSS Transition......................... Not implemented
Client Wifi Direct Capabilities:
WFD capable................................ No
Manged WFD capable......................... No
Cross Connection Capable................... No
Support Concurrent Operation............... No
Fast BSS Transition Details:
Client Statistics:
Number of Bytes Received................... 238521
Number of Bytes Sent....................... 1813864

--More-- or (q)uit
Total Number of Bytes Sent................. 1813864
Total Number of Bytes Recv................. 238521
Number of Bytes Sent (last 90s)............ 1046105
Number of Bytes Recv (last 90s)............ 127288
Number of Packets Received................. 1944
Number of Packets Sent..................... 1862
Number of Interim-Update Sent.............. 0
Number of EAP Id Request Msg Timeouts...... 0
Number of EAP Id Request Msg Failures...... 0
Number of EAP Request Msg Timeouts......... 0
Number of EAP Request Msg Failures......... 0
Number of EAP Key Msg Timeouts............. 0
Number of EAP Key Msg Failures............. 0
Number of Data Retries..................... 420
Number of RTS Retries...................... 0
Number of Duplicate Received Packets....... 3
Number of Decrypt Failed Packets........... 0
Number of Mic Failured Packets............. 0
Number of Mic Missing Packets.............. 0
Number of RA Packets Dropped............... 0
Number of Policy Errors.................... 0
Radio Signal Strength Indicator............ -68 dBm
Signal to Noise Ratio...................... 23 dB

--More-- or (q)uit
Client Rate Limiting Statistics:
Number of Data Packets Received............ 0
Number of Data Rx Packets Dropped.......... 0
Number of Data Bytes Received.............. 0
Number of Data Rx Bytes Dropped............ 0
Number of Realtime Packets Received........ 0
Number of Realtime Rx Packets Dropped...... 0
Number of Realtime Bytes Received.......... 0
Number of Realtime Rx Bytes Dropped........ 0
Number of Data Packets Sent................ 0
Number of Data Tx Packets Dropped.......... 0
Number of Data Bytes Sent.................. 0
Number of Data Tx Bytes Dropped............ 0
Number of Realtime Packets Sent............ 0
Number of Realtime Tx Packets Dropped...... 0
Number of Realtime Bytes Sent.............. 0
Number of Realtime Tx Bytes Dropped........ 0
Nearby AP Statistics:
Cisco_AP_Yannis(slot 0)
antenna0: 592 secs ago................... -63 dBm
antenna1: 592 secs ago................... -63 dBm
Cisco_AP_Yannis(slot 1)
antenna0: 40 secs ago.................... -64 dBm

--More-- or (q)uit
antenna1: 40 secs ago.................... -58 dBm
Cisco_Window(slot 0)
antenna0: 590 secs ago................... -49 dBm
antenna1: 590 secs ago................... -52 dBm
Cisco_Window(slot 1)
antenna0: 44 secs ago.................... -60 dBm
antenna1: 44 secs ago.................... -50 dBm
Cisco_AP_TV(slot 0)
antenna0: 591 secs ago................... -53 dBm
antenna1: 591 secs ago................... -54 dBm
Cisco_AP_TV(slot 1)
antenna0: 40 secs ago.................... -68 dBm
antenna1: 40 secs ago.................... -55 dBm
DNS Server details:
DNS server IP ............................. 193.84.77.159
DNS server IP ............................. 193.84.77.1
Assisted Roaming Prediction List details:

Client Dhcp Required: False
Allowed (URL)IP Addresses
-------------------------

--More-- or (q)uit
AVC Profile Name: ............................... monitor

Leo Laohoo · ‎01-29-2016

Current Rate..................................... m7
Supported Rates.................................. 6.0,9.0,12.0,18.0,24.0,36.0,48.0,54.0

Here it is.

This is telling me only 1 Spatial Stream.

Anatolii Shavlovskyi · ‎01-29-2016

for m7 data rate i should have 48 Mbps, but I have 90 DL, 90 UL, during above show command display.

Can i check what channel bandwidth is used for that client?

Is m7 data rate for DL or UL?

thanks

Leo Laohoo · ‎01-29-2016

Is m7 data rate for DL or UL?

Either. Smartphones & tablets don't have CPU and battery power to do both upload and download.

Anatolii Shavlovskyi · ‎01-29-2016

phones have small antenna gains so UL radio conditions will be worser then in DL.

SO, show client details output displays current rate in DL or UL?

Anatolii Shavlovskyi · ‎01-29-2016

for example, i have connection to 2702 AP.

Dl speed is 65 mb, UL is 135mb.

for this device we have m7 ss1.

we can determine DL and UL speed disbalances by showing data rate in DL and Ul. So, show client details show DL or UL?

why i have DL and UL disbalances?

(Cisco Controller) >show client detail 50:2e:5c:dd:dc:7c
Client MAC Address............................... 50:2e:5c:dd:dc:7c
Client Username ................................. 16573x10207234018954728@fbconnect
AP MAC Address................................... 5c:83:8f:57:d4:40
AP Name.......................................... Cisco_AP_Window
AP radio slot Id................................. 1
Client State..................................... Associated
Client User Group................................ 16573x10207234018954728@fbconnect
Client NAC OOB State............................. Access
Wireless LAN Id.................................. 1
Wireless LAN Network Name (SSID)................. HotSpot
Wireless LAN Profile Name........................ HotSpot
Hotspot (802.11u)................................ Not Supported
BSSID............................................ 5c:83:8f:57:d4:4f
Connected For ................................... 556 secs
Channel.......................................... 36
IP Address....................................... 10.10.10.84
Gateway Address.................................. Unknown
Netmask.......................................... Unknown
IPv6 Address..................................... fe80::522e:5cff:fedd:dc7c
Association Id................................... 3
Authentication Algorithm......................... Open System
Reason Code...................................... 1

--More-- or (q)uit
Status Code...................................... 0
Session Timeout.................................. 86400
Client CCX version............................... No CCX support
QoS Level........................................ Silver
Avg data Rate.................................... 0
Burst data Rate.................................. 0
Avg Real time data Rate.......................... 0
Burst Real Time data Rate........................ 0
802.1P Priority Tag.............................. disabled
CTS Security Group Tag........................... Not Applicable
KTS CAC Capability............................... No
Qos Map Capability............................... No
WMM Support...................................... Enabled
APSD ACs....................................... BK BE VI VO
Current Rate..................................... m6 ss1
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
AAA Override ACL Name............................ Guest_Wi-Fi
AAA Override ACL Applied Status.................. Yes

--More-- or (q)uit
AAA Override Flex ACL Name....................... none
AAA Override Flex ACL Applied Status............. Unavailable
AAA URL redirect................................. none
Audit Session ID................................. c0a836ab0000011c56ab4fb1
AAA Role Type.................................... none
Local Policy Applied............................. none
IPv4 ACL Name.................................... none
FlexConnect ACL Applied Status................... Unavailable
IPv4 ACL Applied Status.......................... Unavailable
IPv6 ACL Name.................................... none
IPv6 ACL Applied Status.......................... Unavailable
Layer2 ACL Name.................................. none
Layer2 ACL Applied Status........................ Unavailable
Client Type...................................... Simple IP
Client Type...................................... SimpleIP
mDNS Status...................................... Enabled
mDNS Profile Name................................ default-mdns-profile
No. of mDNS Services Advertised.................. 0
Policy Type...................................... N/A
Encryption Cipher................................ None
Protected Management Frame ...................... No
Management Frame Protection...................... No
EAP Type......................................... Unknown

--More-- or (q)uit
Interface........................................ hotspot
VLAN............................................. 856
Quarantine VLAN.................................. 0
Access VLAN...................................... 856
Local Bridging VLAN.............................. 856
Client Capabilities:
CF Pollable................................ Not implemented
CF Poll Request............................ Not implemented
Short Preamble............................. Implemented
PBCC....................................... Not implemented
Channel Agility............................ Not implemented
Listen Interval............................ 1
Fast BSS Transition........................ Not implemented
11v BSS Transition......................... Not implemented
Client Wifi Direct Capabilities:
WFD capable................................ No
Manged WFD capable......................... No
Cross Connection Capable................... No
Support Concurrent Operation............... No
Fast BSS Transition Details:
Client Statistics:
Number of Bytes Received................... 574469679
Number of Bytes Sent....................... 257127687

--More-- or (q)uit
Total Number of Bytes Sent................. 257127687
Total Number of Bytes Recv................. 574469679
Number of Bytes Sent (last 90s)............ 10215
Number of Bytes Recv (last 90s)............ 15976
Number of Packets Received................. 468291
Number of Packets Sent..................... 353419
Number of Interim-Update Sent.............. 0
Number of EAP Id Request Msg Timeouts...... 0
Number of EAP Id Request Msg Failures...... 0
Number of EAP Request Msg Timeouts......... 0
Number of EAP Request Msg Failures......... 0
Number of EAP Key Msg Timeouts............. 0
Number of EAP Key Msg Failures............. 0
Number of Data Retries..................... 193073
Number of RTS Retries...................... 0
Number of Duplicate Received Packets....... 29
Number of Decrypt Failed Packets........... 0
Number of Mic Failured Packets............. 0
Number of Mic Missing Packets.............. 0
Number of RA Packets Dropped............... 0
Number of Policy Errors.................... 0
Radio Signal Strength Indicator............ -54 dBm
Signal to Noise Ratio...................... 40 dB

--More-- or (q)uit
Client Rate Limiting Statistics:
Number of Data Packets Received............ 0
Number of Data Rx Packets Dropped.......... 0
Number of Data Bytes Received.............. 0
Number of Data Rx Bytes Dropped............ 0
Number of Realtime Packets Received........ 0
Number of Realtime Rx Packets Dropped...... 0
Number of Realtime Bytes Received.......... 0
Number of Realtime Rx Bytes Dropped........ 0
Number of Data Packets Sent................ 0
Number of Data Tx Packets Dropped.......... 0
Number of Data Bytes Sent.................. 0
Number of Data Tx Bytes Dropped............ 0
Number of Realtime Packets Sent............ 0
Number of Realtime Tx Packets Dropped...... 0
Number of Realtime Bytes Sent.............. 0
Number of Realtime Tx Bytes Dropped........ 0
Nearby AP Statistics:
Cisco_AP_Window(slot 1)
antenna0: 28 secs ago.................... -47 dBm
antenna1: 28 secs ago.................... -54 dBm
Cisco_AP_TV(slot 1)
antenna0: 27 secs ago.................... -58 dBm

--More-- or (q)uit
antenna1: 27 secs ago.................... -56 dBm
DNS Server details:
DNS server IP ............................. 193.84.77.159
DNS server IP ............................. 193.84.77.1
Assisted Roaming Prediction List details:

Client Dhcp Required: False
Allowed (URL)IP Addresses
-------------------------

AVC Profile Name: ............................... monitor

Leo Laohoo · ‎01-30-2016

Dl speed is 65 mb, UL is 135mb.

Ok, here's the thing, the output shows the smartphone negotiating to MCS 6 (SS of 1) so this means up to 135 Mbps.

The question that needs to be answer is this: Can this wireless client really process 135 Mbps?

What the software can say the phone "can" negotiate and what the actual speed achievable are two different things.

Radio Signal Strength Indicator............ -68 dBm
Signal to Noise Ratio...................... 23 dB

Hmmmm ... Good signal but SNR is not good.

Reginald Pugh · ‎01-30-2016

Good handy chart to use; by Keith Parsons at WLANPros

http://www.wlanpros.com/wp-content/uploads/2015/06/MCS-Index-802.11n-and-802.11ac.pdf

Also note :what is the APs transmit power set to? The other tested APs ( Dlink, Unify, Tp-link). May be transmitting at a higher transmit power or using a different chanel than the model of AP you have 2702i < internal antenna?

Thus the lower SNR for the environment and rates shifting based on the RF conditions around the 2702i AP using internal antennas opposed to external as I assume the other APs use external higher gain antennas?

Reginald Pugh · ‎01-30-2016

Also look at this chart -comparing SNR to MCS from Andrew Von Nagy

http://www.wlanpros.com/wp-content/uploads/2015/06/Revolution-Wi-FI-MCS-to-SNR-Single-Page.pdf

Hope this helps!

Anatolii Shavlovskyi · ‎02-01-2016

Hi,

I saw 160 Mbps with Htc One m7 connected to Dlink and TP-link. So, this phone can process 160 Mbps.

Output TX power on Dlik, TP-link was 21 dBm.

I tested speed with iperf and speedtest, the difference is not so big about several Mbps.

cisco configuration:

I set Power Level Assignment on WLC: on Demand (Max Power 21 dBm)

All APs work on different channels. I

How can I check UL current rate for connected client?

Leo Laohoo · ‎01-30-2016

we can determine DL and UL speed disbalances by showing data rate in DL and Ul. So, show client details show DL or UL?

MCS 6 or MCS 7 ... won't make any difference. Wireless clients, like smartphones or tablets do not have CPU & battery capacity, to push that speed. Smartphones still come with one antenna. Speedtest will show that they can go that fast but speedtest is a "low intensity" test.

HTC One is stated on the spec sheet as "802.11 a/b/g/n/ac". How's 802.11ac possible if there's only one antenna?