[ns] an idea please!!

[Meeta Gupta]

dear users,
 
                 following is an explanation of a scenario. please suggest me what to do...
 
" there are two nodes say X and Y. X periodically broadcasts a message which Y receives. In response to X's message, Y unicasts a reply to X. Both nodes update respective tables upon receiving the messages. NOW after some time X cannot hear Y but Y hears X. As a result X purges Y's information from its table but Y still maintains X's information. THE PROBLEM is that X is a clusterhead and Y is a member!!!!!. Y keeps on maintaing X's information as its clusterhead while X has no idea of Y."
 
please give me an explanation to this.
 
thank you and regards.
 
Meeta