I requested one employee of extreme network to refer me for a particular opening within one day I got call from hr for first telephonic round .I got shortlisted after first telephonic round and 2nd round telephonic was scheduled.After 2nd round telephonic interviewer told me , he was satisfied with my knowledge.But even after 15 days wait I did not hear from hr .when I followed up ...hr sent me mail that I got rejected..I was not given any reason of rejection