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CCNP UPSIDE DOWN : NEW CCNP 2020 NETCONF/YANG TOPIC | IT NETWORKS


What are NETCONF and YANG??

1) Definitions

- Acronym : NETwork CONFiguration Protocol,

It is a network device management protocol, provides a mechanim for configuring devices and querying the network configuration protocol and status.




It looks just like SNMP !!

But as we already now SNMP uses MIB (Management Information Base) files to model data.


NETCONF uses YANG to describe the interaction models between the NETCONF client and server.


2) WHY would we use NETCONF and YANG?

Guys it`s the era of network automation !

Traditional CLI mode and SNMP do not meet the requirements of CLOUD BASED NETWORK because of these disadvanatges:


   - Traditional CLI is based on MAN-MACHINE interfaces,
   - Configurations are complex,
   - Maintenance costs are too expensive and you know that configuration changes from a vendor to         another and device interworking is hard.

Some vendor examples:

CISCO

JUNIPER

HUAWEI

HEWLETT PACKARD



A beginner engineer needs to learn each CLI configs and gets deep into them which will take lots of time and efforts which is very hard.


Here comes NETCONF and YANG !

Engineers will be able to perform automatic configuration without caring about heterogenous network equipements and this will be done from a GRAPHICAL APPLICATION.



NETCONF uses the C/S (Client /Server)communication mode, in most of the time we find an NMS, controller, or application which function as a CLIENT and a network device like a router, a switch which function as a SERVER.


Based on the same YANG model, the client generates XML packets that comply with NETCONF communication requirements and the server identifies the XML packets and performs related operations to achive communication.


Learn more:

In Programing

How to install PYTHON 3.8.0 :
https://itnetworks2020.blogspot.com/2019/12/1-programming-with-python-installing.html

In Security

Endpoint introduction :
https://itnetworks2020.blogspot.com/2019/10/endpoints-introduction.html

Firewalls:
https://itnetworks2020.blogspot.com/2019/10/firewalls.html

Security Email Gateways:
https://itnetworks2020.blogspot.com/2019/10/secure-email-gateway.html

CyberSecurity Evolution : UnKnown Threats:
https://itnetworks2020.blogspot.com/2019/10/cybersecurity-evolution-unknown-threats.html

CyberSecurity Evolution : Known Threats
https://itnetworks2020.blogspot.com/2019/10/cybersecurity-evolution-known-threats.html






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