1. Simple tutorial
Yang & Netconf

2. Yang - Modules and submodules
Header statements
yang-version, namespace, prefix
Linkage statement
import and include
Meta information
organization, contact
Revision history
revision

3. Yang - Modules and submodules
module besip-module { namespace "besip"; prefix acme; import “my-types" { prefix mt; } include “some-submodule"; organization “Besip Inc."; contact description “Example module"; revision { description "Initial revision."; …

4. Yang - Statements basic special leaf leaf-list container list must
when
augment

5. Yang - Types Bit fields References Other Integral String Binary data
{,u}int{8,16,32,64}
String
string, enumeration, boolean
Binary data
binary
Bit fields
bits
References
instance-identifier, keyref
Other
typedef, union, grouping

6. Yang - Example NETCONF YANG list user { <user> key name;
leaf name {
type string; }
leaf uid {
type uint32;
leaf full-name {
leaf class {
default viewer;
NETCONF
<user>
<name>glocks</name>
<full-name>Goldie</full-name>
<class>intruder</class>
</user>
<name>snowey</name>
<full-name>Snow</full-name>
<class>free-loader</class>
<name>rzull</name>
<full-name>Repun</full-name>

7. Yang - RPC NETCONF YANG <rpc xmlns="urn:mumble"> rpc activate {
input {
leaf inputText {
type string; }
output {
leaf status {
NETCONF
<rpc xmlns="urn:mumble">
<activate>
<inputText> some text
</inputText>
</activate>
</rpc>
<rpc-reply>
<status> current status
</status>

8. Netconf netconfd program is a NETCONF-over-SSH server implementation
driven directly by YANG files
robust and secure database interface using standard NETCONF protocol operations
Supports <candidate>, <running>, and <startup> databases
support for database locking, editing, validation
subtree and full XPath filtering
Complete XML 1.0 implementation with full support for XML Namespaces

9. Netconf – DBs (XML document)

10. Netconf - Session Start session End session
Exchanging <hello> tag elements
<hello>
<capabilities>
<capability>first-capability</capability>
<!- - tag elements for additional capabilities - ->
</capabilities>
</hello>
End session
<close-session>
<kill-session>

11. Netconf - Requests Operation requests <rpc>
<get-interface-information>
<interface-name>ge-2/3/0</interface-name>
<detail/>
</get-interface-information>
</rpc>
<rpc-reply xmlns="URN" xmlns:junos="URL">
<ok/>
</rpc-reply>

12. Netconf - Requests Configuration requests – get config <rpc>
<source>
<candidate/>
</source>
<filter type="subtree">
<configuration>
<system>
<login/>
</system>
</configuration>
</filter>
</get-config>
</rpc>

13. Netconf - Requests Configuration requests – edit config <rpc>
<target>
<candidate/>
</target>
<config>
<configuration>
<system>
<login>
<user>
<name>admin</name>
<full-name>Administrator</full-name>
<class>superuser</class>
</user>
</login>
</system>
</configuration>
</config>
</edit-config>
</rpc>

14. Netconf - Operations
<get> Retrieve <running> or state data.
<get-config> Retrieve all or part of a configuration.
<edit-config> Edit the target configuration.
<copy-config> Copy an entire configuration.
<delete-config> Delete a configuration.
<commit> Activate edits in <candidate>.
<cancel-commit> Cancel a confirmed-commit operation.
<discard-changes> Discard edits in <candidate>.
<load> Load a YANG module.
<get-schema> Retrieve a YANG or YIN module definition file.
<create-subscription> Start receiving notifications.

15. Netconf - Operations <lock> Lock a database.
<unlock> Unlock a database.
<partial-lock> Lock part of the <running> database.
<partial-unlock> Unlock part of the <running> database.
<validate> Validate a database.
<get-my-session> Retrieve session customization parameters.
<close-session> Terminate the current session.
<kill-session> Terminate a NETCONF session.
<set-my-session> Set the session customization parameters.
<set-log-level> Set the logging verbosity level.
<restart> Restart the server.
<shutdown> Shutdown the server.