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diff --git a/docs/tosca2heat/parser_new_keywords.rst b/docs/tosca2heat/parser_new_keywords.rst
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+New Parser keywords
+===================
+
+1.NFV-tosca new keywords
+------------------------
+
+All keywords in nfv tosca are not implemented in code, and will be
+implemented by parser.
+
+1.1 Nodes types
+~~~~~~~~~~~~~~~
+
+Basic types
+^^^^^^^^^^^
+
+-  tosca.nodes.nfv.VDU
+-  tosca.nodes.nfv.CP
+-  tosca.nodes.nfv.VL
+
+Extend types
+^^^^^^^^^^^^
+
+-  tosca.nodes.nfv.VL.ELine
+-  tosca.nodes.nfv.VL.ELAN
+-  tosca.nodes.nfv.VL.ETree
+-  tosca.nodes.nfv.FP
+
+1.2 Capability types
+~~~~~~~~~~~~~~~~~~~~
+
+Basic types
+^^^^^^^^^^^
+
+-  tosca.capabilities.nfv.VirtualBindable
+-  tosca.capabilities.nfv.VirtualLinkable
+-  tosca.capabilities.nfv.HA.ActiveActive
+-  tosca.capabilities.nfv.HA.ActivePassive
+-  tosca.capabilities.nfv.Metric
+
+Extend types
+^^^^^^^^^^^^
+
+-  tosca.capabilities.nfv.Forwarder
+-  tosca.capabilities.nfv.CPU\_extension
+-  tosca.capabilities.nfv.Memory\_extension
+-  tosca.capabilities.nfv.Hypervisors
+-  tosca.capabilities.nfv.PCIe
+-  tosca.capabilities.nfv.network.Interfaces
+-  tosca.capabilities.nfv.network.Virtual\_switches
+-  tosca.capabilities.nfv.Storage
+
+1.3 Relationship types
+~~~~~~~~~~~~~~~~~~~~~~
+
+Basic types
+^^^^^^^^^^^
+
+-  tosca.relationships.nfv.VirtualBindsTo
+-  tosca.relationships.nfv.VirtualLinksTo
+-  tosca.relationships.nfv.HA
+-  tosca.relationships.nfv.Monitor
+
+Extend types
+^^^^^^^^^^^^
+
+-  tosca.relationships.nfv.ForwardsTo
+
+1.4 Group Types
+~~~~~~~~~~~~~~~
+
+-  tosca.groups.nfv.VNFFG
+
+2.Simple-tosca new keywords
+---------------------------
+
+Some keywords are defined in tosca simple profile,but are not
+impletmented in code,except policy type, which are not yet defined
+completely now.
+
+2.1 topology template keyname
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+-  “substitution\_mappings” syntax
+
+   An optional declaration that exports the topology template as an
+   implementation of a Node type, Which is not supported by toscalib.
+
+2.2 Group types
+~~~~~~~~~~~~~~~
+
+Basic types
+^^^^^^^^^^^
+
+-  tosca.group.root
+
+2.3 Policy Types
+~~~~~~~~~~~~~~~~
+
+Basic types
+^^^^^^^^^^^
+
+-  tosca.policies.Root
+-  tosca.policies.Placement
+-  tosca.policies.Scaling
+
+Extend types
+^^^^^^^^^^^^
+
+-  tosca.policies.Update
+-  tosca.policies.Performance
+-  tosca.policy.placement.Antilocate
+-  tosca.policy.placement.Colocate
+
diff --git a/docs/tosca2heat/simple_rnc_definition/image/vRNC_Definition.PNG b/docs/tosca2heat/simple_rnc_definition/image/vRNC_Definition.PNG
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+++ b/docs/tosca2heat/simple_rnc_definition/image/vRNC_Definition.PNG
diff --git a/docs/tosca2heat/simple_rnc_definition/image/vRNC_Topology.bmp b/docs/tosca2heat/simple_rnc_definition/image/vRNC_Topology.bmp
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+++ b/docs/tosca2heat/simple_rnc_definition/image/vRNC_Topology.bmp
diff --git a/docs/tosca2heat/simple_rnc_definition/vRNC_tosca_intro.rst b/docs/tosca2heat/simple_rnc_definition/vRNC_tosca_intro.rst
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+1. vRNC Topology
+================
+
+The simple vRNC topology is shown below: |vRNC Topology|
+
+-  vRNC includes four networks: EMS\_network, CTRL\_network,
+   Intermedia\_network and extermedia\_network;
+-  vRNC includes four node types: MM, LB, CM and DM;
+-  MM: Stands for Maintain Module, which links to EMS\_network,
+   CTRL\_network and extermedia\_network. It composes of active vdu and
+   standby vds.
+-  CM: Stands for Control Module, which links to CTRL\_network and
+   intermedia\_network. All CM nodes form resource pool and each node
+   composes of active vdu and standby vds.
+-  DM: Stands for Data Module, which links to CTRL\_network and
+   intermedia\_network. All DM nodes form resource pool and each node is
+   a vds.
+-  LB: Stands for LineCard Module, which links to CTRL\_network and
+   intermedia\_network and extermedia\_network. All LB nodes form
+   resource pool and each node is a vds.
+
+2. vRNC Definition
+==================
+
+The files dependency and correspoding specificaiton of vRNC definition
+are shown below： |vRNC Definition|
+
+-  TOSCA\_definition\_1.0.yaml should be the lastest version, which is
+   updated by tosca-parser community, but some keynames (such as
+   substitution\_mappings) in the correspoding standard of
+   《TOSCA-simple-profile-YAML-v1.0》 is not supported.
+-  TOSCA\_nfv\_definition\_1.0.yaml is a new file, and not implemented
+   in code, and the correspoding standard of
+   《tosca-nfv-v1.0-wd02-rev02》 is not complete now.
+
+.. |vRNC Topology| image:: image/vRNC_Topology.bmp
+.. |vRNC Definition| image:: image/vRNC_Definition.png