diff --git a/xCAT/templates/mypostscript/mypostscript.tmpl b/xCAT/templates/mypostscript/mypostscript.tmpl
index 4cce4eb5b..63cf33efe 100755
--- a/xCAT/templates/mypostscript/mypostscript.tmpl
+++ b/xCAT/templates/mypostscript/mypostscript.tmpl
@@ -13,10 +13,21 @@
 ENABLESSHBETWEENNODES=#Subroutine:xCAT::Template::enablesshbetweennodes:$NODE#
 export ENABLESSHBETWEENNODES
 
+## tabdump(<TABLENAME>) is used to get all the information in the <TABLENAME> table 
+## The <TABLENAME> only could be non-"node key" table and two keys table, such as networks, passwd.
+## And <TABLENAME> also couldn't be log related tables.
+## The site table is used so frequent that the <TABLENAME> couldn't be the site table.
+## And if the key is the node, you should use #TABLE...# instead of tabdump().
+## And each attribute=value pair will be delimited  by "||" .
+## We may put special characters in the comments attribute. 
+## So the comments attribute will be put as the last in the list,
+## and the parsing should be more carefull.   
+tabdump(networks)
 
 NODE=$NODE
 export NODE
 
+
 ## nfsserver,installnic,primarynic,routenames from the noderes tab
 NFSSERVER=#TABLE:noderes:$NODE:nfsserver#
 export NFSSERVER