Question on 802.11r

[Ben Greear]

On 11/11/2013 09:50 AM, Ben Greear wrote:
> On 11/11/2013 09:40 AM, Dan Williams wrote:
>> On Mon, 2013-11-11 at 09:25 -0800, Ben Greear wrote:
>>> Hello!
>>>
>>> I am trying to do some testing of 802.11r with some Cisco APs and controller
>>> and linux + supplicant on the station side.
>>>
>>> I am curious if anyone has any suggestions on how to go about making supplicant
>>> do it's part of the deal.  I am thinking that maybe I need to send wpa_cli commands
>>> to 'gently' move the station from one AP to the other without doing a total
>>> station reset/reconfigure?
>>
>> Are you looking for "wpa_cli roam <bssid>" ?
> 
> That sounds very promising.  I'll give that a try.

So, it seems to do what I want.  I'm testing with APs on different
channels, in case that matters.

A question though....any idea what that MLME command failure
is about and why it decides to scan again?

1384204830.493728: sta1: State: COMPLETED -> AUTHENTICATING
1384204830.493738: EAPOL: External notification - EAP success=0
1384204830.493746: EAPOL: External notification - EAP fail=0
1384204830.493750: EAPOL: External notification - portControl=Auto
1384204830.493757: nl80211: Authenticate (ifindex=6)
1384204830.493762:   * bssid=dc:a5:f4:f3:ce:9e
1384204830.493766:   * freq=5300
1384204830.493770:   * SSID - hexdump_ascii(len=10):
     61 69 72 6f 6e 65 74 31 2d 35                     aironet1-5
1384204830.493779:   * IEs - hexdump(len=0): [NULL]
1384204830.493783:   * Auth Type 0
1384204830.493804: sta1: nl80211: MLME command failed (auth): ret=-2 (No such file or directory)
1384204830.493811: nl80211: Trigger single channel scan to refresh cfg80211 BSS entry
1384204830.493816: sta1: nl80211: scan request
1384204830.493822: nl80211: Scan SSID - hexdump_ascii(len=10):
     61 69 72 6f 6e 65 74 31 2d 35                     aironet1-5
1384204830.493832: nl80211: Scan frequency 5300 MHz
1384204830.495429: Scan requested (ret=0) - scan timeout 30 seconds
1384204830.495687: nl80211: Event message available
1384204830.495709: nl80211: Drv Event 33 (NL80211_CMD_TRIGGER_SCAN) received for sta1
1384204830.495719: sta1: nl80211: Scan trigger
1384204830.607596: RTM_NEWLINK: operstate=1 ifi_flags=0x11043 ([UP][RUNNING][LOWER_UP])
1384204830.607645: RTM_NEWLINK, IFLA_IFNAME: Interface 'sta1' added
1384204830.607670: nl80211: if_removed already cleared - ignore event
1384204830.607682: nl80211: Event message available
1384204830.607707: nl80211: Drv Event 34 (NL80211_CMD_NEW_SCAN_RESULTS) received for sta1
1384204830.607722: sta1: nl80211: New scan results available
1384204830.607730: nl80211: Scan results for missing cfg80211 BSS entry
1384204830.607735: nl80211: Try to authenticate again
1384204830.607744: nl80211: Authenticate (ifindex=6)
1384204830.607752:   * bssid=dc:a5:f4:f3:ce:9e
1384204830.607760:   * freq=5300
1384204830.607765:   * SSID - hexdump_ascii(len=10):
     61 69 72 6f 6e 65 74 31 2d 35                     aironet1-5
1384204830.607780:   * IEs - hexdump(len=0): [NULL]
1384204830.607787:   * Auth Type 0
1384204830.634919: nl80211: Authentication request send successfully
1384204830.634964: RTM_NEWLINK: operstate=1 ifi_flags=0x1003 ([UP])
1384204830.634975: RTM_NEWLINK, IFLA_IFNAME: Interface 'sta1' added
1384204830.634992: nl80211: if_removed already cleared - ignore event
1384204830.635002: RTM_NEWLINK: operstate=1 ifi_flags=0x1043 ([UP][RUNNING])
1384204830.635008: RTM_NEWLINK, IFLA_IFNAME: Interface 'sta1' added
1384204830.635021: nl80211: if_removed already cleared - ignore event
1384204830.635029: nl80211: Event message available


(Full logs available if you wish).

Thanks,
Ben

> 
> Thanks,
> Ben
> 


-- 
Ben Greear <greearb at candelatech.com>
Candela Technologies Inc  http://www.candelatech.com