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Cisco AP question 1142

davec4351
Level 1
Level 1

Hi All, 


i have a cisco 1142 in my home lab, seems that I can not get performance past 90 Mbps, the data rates mention I can get above 144/300 , but just can't seem to get any more performance than what I am seeing even with a device next to the AP. I have autoneg between the switch and the AP on gi0 interface. 


I am using auth open/wpa2 , no aironet extensions, and aes ciphers which I have read on this forum have caused problems in the past. My wired network is getting 400Mbps have a cisco nexus 3k upstream switch and 4351 router, so I think the problem is at the AP level. Any thoughts? 

 

# show run int dot11Radio 1
Building configuration...


dot11 ssid test
authentication open
authentication key-management wpa version 2
dot1x credentials test
guest-mode
wpa-psk ascii 7 test123


Current configuration : 519 bytes
!
interface Dot11Radio1
no ip address
no ip route-cache
load-interval 30
!
encryption mode ciphers aes-ccm
!
ssid test
!
antenna gain 0
peakdetect
speed basic-54.0 m15.
channel width 40-above
channel dfs
station-role root
no dot11 extension aironet
infrastructure-client
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 spanning-disabled
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
end

interface GigabitEthernet0
ip address 192.168.1.7 255.255.255.0
no ip route-cache
duplex auto
speed auto
no keepalive
bridge-group 1
bridge-group 1 spanning-disabled
no bridge-group 1 source-learning
!

 

4 Replies 4

Leo Laohoo
Hall of Fame
Hall of Fame
What is the exact model of the wireless NIC to test the connectivity?

Testing IOS device (iphone 7-plus) but also able to replicate on latest version of Microsoft Surface Pro.

Bernhard82
Level 1
Level 1


Your configuration on the AP looks good. how are you measuring this?

Remember Wireless is a shared medium, depending on the channel utilisation and the capability of your wireless chips will determine the actual throughput of your device.

 

Data rates you mention of 144 and 300 are based on an HT MCS 15, 2 spatial stream  20MHz & 40 MHz wide channel, but actual throughput will be approximately half that. check out ,can find out more by looking at this sheet

https://www.wlanpros.com/resources/mcs-index-802-11ac-vht-chart/

 

 

 

Testing with iperf and speed test through various sources online. 

Review Cisco Networking for a $25 gift card