diff --git a/perl-xCAT-2.0/xCAT/PPC.pm b/perl-xCAT-2.0/xCAT/PPC.pm
index 2113a9918..07aeb2671 100644
--- a/perl-xCAT-2.0/xCAT/PPC.pm
+++ b/perl-xCAT-2.0/xCAT/PPC.pm
@@ -7,7 +7,7 @@ use xCAT::Utils;
 use xCAT::Usage;
 use POSIX "WNOHANG";
 use Storable qw(freeze thaw);
-use Time::HiRes qw(gettimeofday);
+use Time::HiRes qw(gettimeofday sleep);
 use IO::Select;
 use Socket;
 use xCAT::PPCcli; 
@@ -82,29 +82,30 @@ sub send_msg {
 sub process_command {
 
     my $request  = shift;
-    my $maxp     = 64;
-    my $maxssh   = 10;
     my %nodes    = ();
     my $callback = $request->{callback};
     my $sitetab  = xCAT::Table->new( 'site' );
+    my @site     = qw(ppcmaxp ppctimeout maxssh ppcretry fsptimeout); 
     my $start;
-    my $timeout;
 
     #######################################
-    # Get max processes to fork
+    # Default site table attributes 
+    #######################################
+    $request->{ppcmaxp}    = 64;
+    $request->{ppctimeout} = 0;
+    $request->{fsptimeout} = 0;
+    $request->{ppcretry}   = 3;
+    $request->{maxssh}     = 10;
+
+    #######################################
+    # Get site table attributes 
     #######################################
     if ( defined( $sitetab )) {
-        my ($ent) = $sitetab->getAttribs({ key=>'ppcmaxp'},'value');
-        if ( defined($ent) ) { 
-            $maxp = $ent->{value}; 
-        }
-        ($ent) = $sitetab->getAttribs({ key=>'ppctimeout'},'value');
-        if ( defined($ent) ) { 
-            $timeout = $ent->{value}; 
-        }
-        ($ent) = $sitetab->getAttribs({ key=>'maxssh'},'value');
-        if ( defined($ent) ) {
-            $maxssh = $ent->{value};
+        foreach ( @site ) {
+            my ($ent) = $sitetab->getAttribs({ key=>$_},'value');
+            if ( defined($ent) ) { 
+                $request->{$_} = $ent->{value}; 
+            }
         }
     }
     if ( exists( $request->{verbose} )) {
@@ -127,7 +128,7 @@ sub process_command {
     my $sessions;
     
     foreach ( @$nodes ) {
-        while ( $children > $maxp ) {
+        while ( $children > $request->{ppcmaxp} ) {
             Time::HiRes::sleep(0.1);
         }
         ###################################
@@ -136,13 +137,13 @@ sub process_command {
         ###################################
         if ( $hw ne @$_[0] ) {
             $sessions = 1;
-        } elsif ( $sessions++ >= $maxssh ) {
-            Time::HiRes::sleep(0.1);
+        } elsif ( $sessions++ >= $request->{maxssh} ) {
+            sleep(1);
             $sessions = 1;
         }
         $hw = @$_[0];
 
-        my $pipe = fork_cmd( @$_[0], @$_[1], $request, $timeout );
+        my $pipe = fork_cmd( @$_[0], @$_[1], $request );
         if ( $pipe ) {
             $fds->add( $pipe );
             $children++;
@@ -153,6 +154,7 @@ sub process_command {
     #######################################
     while ( $children > 0 ) {
         child_response( $callback, $fds );
+        Time::HiRes::sleep(0.1);
     }
     if ( exists( $request->{verbose} )) {
         trace( $request, $start );
@@ -329,7 +331,7 @@ sub preprocess_nodes {
     # LPAR-by-LPAR basis - fork one process
     # per LPAR.  
     ##########################################
-    if ( $method =~ /^getmacs|rnetboot$/ ) {
+    if ( $method =~ /^(getmacs|rnetboot)$/ ) {
         while (my ($hcp,$hash) = each(%nodehash) ) {    
             while (my ($mtms,$h) = each(%$hash) ) {
                 while (my ($lpar,$d) = each(%$h)) {
@@ -621,7 +623,6 @@ sub fork_cmd {
     my $host    = shift;
     my $nodes   = shift;
     my $request = shift;
-    my $timeout = shift;
 
     #######################################
     # Pipe childs output back to parent
@@ -645,7 +646,7 @@ sub fork_cmd {
         close( $parent );
         $request->{pipe} = $child;
 
-        invoke_cmd( $host, $nodes, $request, $timeout );
+        invoke_cmd( $host, $nodes, $request );
         exit(0);
     }
     else {
@@ -667,7 +668,6 @@ sub invoke_cmd {
     my $host    = shift;
     my $nodes   = shift;
     my $request = shift;
-    my $timeout = shift;
     my $hwtype  = $request->{hwtype};
     my $verbose = $request->{verbose};
     my @exp;
@@ -687,7 +687,7 @@ sub invoke_cmd {
             send_msg( $request, 1, $@ );
             return;
         }
-        my @exp = xCAT::PPCfsp::connect( $request, $host, $timeout );
+        my @exp = xCAT::PPCfsp::connect( $request, $host );
 
         ####################################
         # Error connecting 
@@ -719,7 +719,7 @@ sub invoke_cmd {
     # Connect to list of remote servers
     ########################################
     foreach ( split /,/, $host ) {
-        @exp = xCAT::PPCcli::connect( $hwtype, $_, $verbose, $timeout );
+        @exp = xCAT::PPCcli::connect( $request, $hwtype, $_ );
 
         ####################################
         # Successfully connected 
@@ -833,6 +833,7 @@ sub runcmd {
 # nodes of the HCPs.
 ##########################################################################
 sub preprocess_request {
+
   my $package  = shift;
   my $req      = shift;
   if ($req->{_xcatdest}) { return [$req]; }    #exit if preprocessed
@@ -1001,3 +1002,4 @@ sub process_request {
 
 
 
+