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New Member

unable to enable 802.11n on 897VAW

Hi all,

 

I am trying to configure the wireless AP in  a 897vaw. I cannot find any options relating to 802.11n in the cli.

 

I have read the configure guide for the 890 series and checked the data sheet and the 897vaw should support 802.11n. I have configured the wireless AP with the below and when I use inISSDer I can only see A and G being advertised.

 

What have i missed :(

interface Dot11Radio0
 no ip address
 no ip route-cache
 !
 encryption vlan 20 mode ciphers tkip
 !
 broadcast-key vlan 20 change 30
 !
 !
 ssid xxx
 !
 antenna gain 0
 mbssid
 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 Dot11Radio0.20
 encapsulation dot1Q 20
 no ip route-cache
 bridge-group 2
 bridge-group 2 subscriber-loop-control
 bridge-group 2 block-unknown-source
 no bridge-group 2 source-learning
 no bridge-group 2 unicast-flooding
 bridge-group 2 spanning-disabled
!
interface Dot11Radio1
 no ip address
 no ip route-cache
 !
 encryption vlan 20 mode ciphers tkip
 !
 broadcast-key vlan 20 change 30
 !
 !
 ssid xxx
 !
 antenna gain 0
 no dfs band block
 mbssid
 channel 5280
 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 Dot11Radio1.20
 encapsulation dot1Q 20
 no ip route-cache
 bridge-group 2
 bridge-group 2 subscriber-loop-control
 bridge-group 2 block-unknown-source
 no bridge-group 2 source-learning
 no bridge-group 2 unicast-flooding
 bridge-group 2 spanning-disabled

 

 

 

 

6 REPLIES
Hall of Fame Super Gold

For 802.11n, you must have

For 802.11n, you must have the following enabled: 

 

1.  WMM; 

2.  WPA2 AES/PSK

New Member

Hi Leo, I have no option for

Okay I have checked and I get no option for wmm in either golbal level or ssid level

 


ap(config)# interface Dot11Radio 0
ap(config-if)#wmm
               ^
% Invalid input detected at '^' marker.

ap(config-if)#?
Interface configuration commands:
 cut
  vocera                  Enable radio fix for Vocera
  world-mode              Dot11 radio world mode

ap(config-if)#

 

ap(config)#dot11 ssid xxx
ap(config-ssid)#no disable-wmm
                    ^
% Invalid input detected at '^' marker.

ap(config-ssid)#?
ssid configuration commands:
  accounting           radius accounting
  authentication       authentication method
  dot1x                SSID Config Commands for IEEE 802.1X
  exit                 Exit from ssid sub mode
  guest-mode           guest ssid
  ids                  IDS MFP Client Configuration
  information-element  Add information element
  infrastructure-ssid  ssid used to associate to other infrastructure devices
  ip                   IP options
  max-associations     set maximum associations for ssid
  mbssid               Multiple BSSID
  mobility             enable L3 mobility
  no                   Negate a command or set its defaults
  vlan                 bind ssid to vlan
  wpa-psk              Configure Wi-Fi Protected Access pre-shared key

 

/Mike

Hi,Try this:ap(config)#int

Hi,

Try this:

ap(config)#int do0
ap(config-if)#dot11 qos mode ?
  wmm  Enable WMM clients

Or via gui interface.

 

Regards

New Member

Okay cool thanks for the

Okay cool thanks for the answers. I enabled AES and it defaulted over to N. The next questions is why do the clients join the 2.4ghz channel and not the 5ghz. If I  turn off the 2,4 channel the client then joins the 5ghz channel and then remembers to join that channel all the time. I would like most the of clients to join the 5ghz first and then join the 2,4 if they dont support

 

Also the speed reported on the 2,4 channel is 150 I was expecting 300ish

Hall of Fame Super Gold

2.4 Ghz won't and don't

2.4 Ghz won't and don't support 802.11n.  

 

Why would your clients like to join 2.4 Ghz will depend entirely on the wireless NIC of your clients and it's got nothing to do with the AP.  

New Member

A small correction here.2

A small correction here.

2.4Ghz do support 802.11N... what it does not support is 802.11N 40-Mhz channels or channel bonding.

The reason why only 150Mbps are being achieved, is because most probably the wireless client is only using one spatial stream, thus is only achieving M7 which is the maximum "N" speed with one stream. Even though, on 2.4Ghz M7 with a single channel 20Mhz wide, the real data rate should be 72Mbps.

To achieve real 300ish speeds as you said, you need a wireless client with at least two antennas and using 5Ghz with 40Mhz wide channels.

With two streams the data rates should be between M8 and m15.

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