Non-root AP associates itself?

Question

Hi,
I have three AP , one Root and two non-root. I notice something weird when I type  command "sh dot11 associations"  on Non-root APs.
If I type "sh dot11 associations" on NON-ROOT1 AP there is a lines that shows a client with the name NON-ROOT1 as a client associated, sometimes the line dissapeared but when I type " sh dot11 associations" on NON-ROOT2 AP a similar line is shown ; theres is a line that shows a client with the name NON-ROOT2
What could it be the reason???
NON-ROOT1#sh dot11 associations
802.11 Client Stations on Dot11Radio0:
SSID [enlace] :
MAC Address    IP address      Device        Name                 Parent         State
0018.de16.8d12 192.168.1.221   ccx-client    NON-ROOT1         self           Assoc
0023.4e6c.ec11 192.168.1.72    ccx-client    casa                     self           Assoc
0025.9cab.3073 192.168.1.70    ccx-client    -                          self           Assoc
0027.0c6b.7290 192.168.1.250   11g-bridge    ROOT                 -              Assoc
60fb.4242.aec1 192.168.1.79    unknown       -                         self           Assoc
c42c.0352.fbbb 192.168.1.71    unknown       -                         self           Assoc
NON-ROOT1#
Regards,

Answer 1

Hi ,
I have  few question for you
Are both the Non root associated to the same root bridge ?
Is it possible that one of the Non root is associated to another non root which is running in Non root bridge with clients mode ?
Can you verify the Mac and IP address of the Non root bridge and check if they are the same ?
Regards ,
Sharath K.P.