09-05-2020 12:14 PM - edited 07-05-2021 12:28 PM
Hi to all,
I purchase C9120AXE-E that i converted to C9120AXE-EWC-E.
I use it with 4 Antennas (AIR-ANT2535SDW-R).
I setup it and make test speed with my smartphone (Samsung Galaxy S10+)
I notice Wifi6 logo on my phone after connected to AP.
I make speedtest but i don't exceed 300mbit for a unknow reason.
With wifi 6 I should be able to reach the limit of my internet bandwidth, i.e. 980mbit/s...
Are there any particular settings to implement?
Show conf result below
C9120AXE-1#show conf Using 7433 out of 2097152 bytes ! ! Last configuration change at 17:42:16 UTC Sun Aug 30 2020 by ELRTL55 ! NVRAM config last updated at 17:42:23 UTC Sun Aug 30 2020 by ELRTL55 ! version 17.3 service tcp-keepalives-in service tcp-keepalives-out service timestamps debug datetime msec service timestamps log datetime msec service password-encryption service call-home no platform punt-keepalive disable-kernel-core no platform punt-keepalive settings platform console serial ! hostname C9120AXE-1 ! boot-start-marker boot-end-marker ! aaa new-model ! aaa attribute list wlan_lobby_access ! aaa session-id common no fips authorization-key ! ip name-server xxx.67.xxx.xxx xxx.67.xxx.xxx ip domain timeout 1 login on-success log ! flow exporter default-flow-exporter destination local wlc ! flow monitor default-flow-monitor exporter default-flow-exporter record wireless avc basic ! parameter-map type webauth global type webauth intercept-https-enable ! access-session mac-move deny password encryption aes ! crypto pki trustpoint TP-self-signed-xxxxxxxxxxxxxx enrollment selfsigned subject-name cn=IOS-Self-Signed-Certificate-xxxxxxxxxxxxxx revocation-check none rsakeypair TP-self-signed-xxxxxxxxxxxxx ! crypto pki trustpoint SLA-TrustPoint enrollment terminal revocation-check crl ! crypto pki certificate chain TP-self-signed-xxxxxxxxxxxxxxxxx certificate self-signed 01 nvram:IOS-Self-Sig#1.cer crypto pki certificate chain SLA-TrustPoint certificate ca 01 nvram:CiscoLicensi#1CA.cer ! crypto pki certificate pool cabundle nvram:ios_core.p7b ! service-template webauth-global-inactive inactivity-timer 3600 service-template DEFAULT_LINKSEC_POLICY_MUST_SECURE linksec policy must-secure service-template DEFAULT_LINKSEC_POLICY_SHOULD_SECURE linksec policy should-secure service-template DEFAULT_CRITICAL_VOICE_TEMPLATE voice vlan service-template DEFAULT_CRITICAL_DATA_TEMPLATE memory free low-watermark processor 12998 ! license udi pid C9800-AP sn FGL24XXXXXXXX device classifier username XXXXXXXXX privilege 15 password 6 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX ! redundancy mode sso ! interface GigabitEthernet0 mac-address 0000.5eXX.XXXX ip dhcp client client-id GigabitEthernet0 ip dhcp client broadcast-flag clear ip address dhcp no negotiation auto ! ip http server ip http authentication local ip http secure-server ip forward-protocol nd ip tftp blocksize 8192 ip route 0.0.0.0 0.0.0.0 GigabitEthernet0 250 ip dns server ! control-plane ! banner exec ^C ######################################################################################################## # # # Welcome to the Cisco Catalyst 9800-AP Embedded Wireless Controller command line interface. # # # # Please see command reference guide for the complete list of supported commands for this release: # # https://www.cisco.com/c/en/us/td/docs/wireless/embedded_wireless_controller_configuration_guide.html # # # ######################################################################################################## ^C ! line con 0 exec-timeout 0 0 stopbits 1 line vty 0 4 length 0 transport input ssh line vty 5 15 transport input ssh ! call-home ! If contact email address in call-home is configured as sch-smart-licensing@cisco.com ! the email address configured in Cisco Smart License Portal will be used as contact email address to send SCH notifications. contact-email-addr sch-smart-licensing@cisco.com profile "CiscoTAC-1" active destination transport-method http ntp server 2.ciscome.pool.ntp.org ntp server 0.ciscome.pool.ntp.org ntp server 1.ciscome.pool.ntp.org ! ! ! ! ! wireless aaa policy default-aaa-policy wireless cts-sxp profile default-sxp-profile wireless management interface GigabitEthernet0 wireless profile airtime-fairness default-atf-policy 0 wireless profile flex default-flex-profile description "default flex profile" wireless profile image-download default description "default image download profile" wireless profile mesh default-mesh-profile description "default mesh profile" wireless profile policy "EXX X" no central association no central dhcp no central switching http-tlv-caching session-timeout 86400 no shutdown wireless profile policy "EXX XX" no central association no central dhcp no central switching http-tlv-caching session-timeout 86400 no shutdown wireless profile policy default-policy-profile no central association no central switching description "default policy profile" dhcp-tlv-caching http-tlv-caching ipv4 flow monitor default-flow-monitor input ipv4 flow monitor default-flow-monitor output no shutdown wireless tag site default-site-tag description "default site tag" no local-site wireless tag policy default-policy-tag description "default policy-tag" wlan "ELR +" policy "EXX X" wlan "ELR AIR ++" policy "EXX XX" wireless tag rf default-rf-tag description "default RF tag" wireless country FR wlan "ELR +" 1 "EXX X" security ft security wpa psk set-key ascii 8 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX no security wpa akm dot1x security wpa akm psk security wpa akm sae security wpa wpa3 security pmf optional no shutdown ap dot11 24ghz rf-profile Low_Client_Density_rf_24gh coverage data rssi threshold -90 coverage level 2 coverage voice rssi threshold -90 description "pre configured Low Client Density rfprofile for 2.4gh radio" high-density rx-sop threshold low tx-power v1 threshold -65 no shutdown ap dot11 24ghz rf-profile High_Client_Density_rf_24gh description "pre configured High Client Density rfprofile for 2.4gh radio" high-density rx-sop threshold medium rate RATE_11M disable rate RATE_12M mandatory rate RATE_1M disable rate RATE_2M disable rate RATE_5_5M disable rate RATE_6M disable tx-power min 7 no shutdown ap dot11 24ghz rf-profile Typical_Client_Density_rf_24gh description "pre configured Typical Client Density rfprofile for 2.4gh radio" rate RATE_11M disable rate RATE_12M mandatory rate RATE_1M disable rate RATE_2M disable rate RATE_5_5M disable rate RATE_6M disable no shutdown ap dot11 5ghz rf-profile Low_Client_Density_rf_5gh coverage data rssi threshold -90 coverage level 2 coverage voice rssi threshold -90 description "pre configured Low Client Density rfprofile for 5gh radio" high-density rx-sop threshold low tx-power v1 threshold -60 no shutdown ap dot11 5ghz rf-profile High_Client_Density_rf_5gh description "pre configured High Client Density rfprofile for 5gh radio" high-density rx-sop threshold medium rate RATE_6M disable rate RATE_9M disable tx-power min 7 tx-power v1 threshold -65 no shutdown ap dot11 5ghz rf-profile Typical_Client_Density_rf_5gh description "pre configured Typical Density rfprofile for 5gh radio" no shutdown ap tag-source-priority 2 source filter ap tag-source-priority 3 source ap ap profile default-ap-profile description "default ap profile" mgmtuser username XXXXXXXX password 8 XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX trapflags ap crash trapflags ap noradiocards trapflags ap register end
Thank you for your help in advance.
09-05-2020 03:33 PM
Pls provide below output. Also what is your internet link bandwidth ?
c9800#show wireless client mac-address <wifi_client_macaddr> detail | in Rate|Signal
HTH
Rasika
09-06-2020 01:03 AM - edited 09-06-2020 01:24 AM
Hi,
My Internet bandwidth is true gigabyte (around 960mbits/s)
Command result is :
Current Rate : m11 ss1
Supported Rates : 9.0,18.0,36.0,48.0,54.0
Radio Signal Strength Indicator : -27 dBm
Signal to Noise Ratio : 58 dB
09-06-2020 03:26 AM
09-06-2020 03:30 AM
Hi,
I'm sorry but I don't understand your answer.
How should I interpret the link you give me?
Best Regards.
09-06-2020 03:53 PM
Thank you for the output. As per that your client is connecting MCS11 with 1 Spatial Stream. Since Samsung S10+ capable of 80MHz (assuming your AP configured for 80MHz channel width), the maximum data rate it can get is 600Mbps (see below). There is a difference in data rates shown in this table & throughput value when you do a speed test, typically it is due to overhead (control & management overhead of WiFi, half-duplex nature, other overhead in frame headers/preambles). So throughput is much less than data rates. So if you are getting 300Mbps with MCS11, SS1, that is not a bad result.
However, the client supports 2SS & hence max data rate it can give is 1.2Gbps (look at MCS 11 and 2SS values against 80MHz). Keep the below page for reference for client capabilities
https://clients.mikealbano.com/
Then the question is why not client use 2SS with this AP and it could be the various reason, client may decide to go to 1SS to preserve battery, etc. Even if you get 2SS connection, I would think you will get 500-600Mbps in speed test
HTH
Rasika
*** Pls rate all useful responses ***
09-06-2020 10:50 PM
Hello,
Thank you for this very interesting answer which brings me to other questions.
I managed to get a 600/700mbit throughput by creating an 80Mhz RF profile that I assigned to 5Ghz, I just forced 80Mhz instead of Best.
Am I to understand that it is necessary to create specific profiles instead of leaving the option on Global for the 5Ghz and 2.4Ghz bands?
According to this table, would it be necessary and possible to force devices to use MCS 11 at 80Mhz in order to have the best throughput in all circumstances?
If this is the case, could you advise me in setting up a 5Ghz and 2.4Ghz RF profile please?
You will find below the screens detailing the different possibilities.
Thank you in advance for your help.
09-06-2020 11:24 PM
09-07-2020 12:14 AM - edited 09-07-2020 12:16 AM
I specify that I use two APs and that they serve about 4 to 6 customers maximum.
They are recent S10+ phones, recent Galaxy Tab S6 tablets and one or two workstations also recent Dell 5490 and Lenovo X380.
I don't need a high-density deployment because there are 4 to 6 device connected.
I don't have any other APs in the environment, so I think I can go tease max throughput with a consistent throughput/stability ratio.
09-07-2020 02:32 AM
09-07-2020 11:24 AM - edited 09-07-2020 11:27 AM
Hi,
I will need your advice to know exactly what parameters to select in the different screens below to get the best performance for 5Ghz and 2.4Ghz please?
Many Thanks.
09-08-2020 02:59 AM
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