diff --git a/xCAT-server/lib/perl/xCAT/PPC.pm b/xCAT-server/lib/perl/xCAT/PPC.pm
index bc97fc778..040121845 100644
--- a/xCAT-server/lib/perl/xCAT/PPC.pm
+++ b/xCAT-server/lib/perl/xCAT/PPC.pm
@@ -818,23 +818,6 @@ sub preprocess_nodes {
             return undef;
         }
     }
-    
-    %::CEC_FRAME_CHILDREN;
-    if ( $request->{fsp_api} == 1 || $request->{command} =~ /^(mkhwconn|rmhwconn)$/) {
-         my @ps = $tabs{ppc}->getAllNodeAttribs(['node','parent','nodetype']); 
-         for my $entry ( @ps ) {
-             my $tmp_parent = $entry->{parent};
-             my $tmp_node = $entry->{node};
-             my $tmp_type = $entry->{nodetype};
-             if(defined($tmp_node) && defined($tmp_type) && ($tmp_type =~ /^(fsp|bpa)$/ && $tmp_parent) ) {
-                 #print "$tmp_node\n";
-                 $::CEC_FRAME_CHILDREN{$tmp_parent} .= "$tmp_node,";
-             }
-         }
-
-    }
-
-    # print Dumper(\%::CEC_FRAME_CHILDREN);
 
     ##########################################
     # Group nodes