diff --git a/xCAT-server/lib/perl/xCAT/PPC.pm b/xCAT-server/lib/perl/xCAT/PPC.pm
index 386e6deb3..13de70c85 100644
--- a/xCAT-server/lib/perl/xCAT/PPC.pm
+++ b/xCAT-server/lib/perl/xCAT/PPC.pm
@@ -284,9 +284,14 @@ sub process_command {
         my $unreachable_nodes;
         my $noderange = join (',', @$nodes);
         my @output = xCAT::Utils->runcmd("pping $noderange", -1);
+
         foreach my $line (@output) {
             my ($hostname, $result) = split ':', $line;
-            $node->{$hostname}->{reachable} = 1;
+            my ($token,    $status) = split ' ', $result;
+            chomp($token);
+            if ($token eq 'ping') {
+                $node->{$hostname}->{reachable} = 1;
+            }
         }
 
         foreach ( @$nodes ) {