Juniper Certification | JNCIA-JUNOS | Day-2 Separation of control and forwarding in JUNOS

On today we are going to move on to separation of control and forwarding in JUNOS from this below image you can see ;
From this above image we can tell that the JUNOS modularity is the separation of the control a plane and by forwarding or data plane. The processes that controls routing and switching protocols are cleanly separated from the processes that forward frames, or packets, or both of it through a device running the JUNOS OS. That, these kind of design which enables you to tune each process for maximum performance and reliability.


That this separation of the control and forwarding planes is one of the key reasons that JUNOS OS can support many different platforms from a common code base.

From the above image we can look over that It illustrates a basic view of the Junos architecture and also highlighting the control and forwarding planes. The Routing Engine i.e., RE performs the control plane functions of the juniper networking device.


Now we will see that RE is the main function like a brain (for a machine) of that particular platform. It is responsible for performing protocol updates in various protocol and also management of the software in processes that can reside inside a protected memory environment (like a secure folder).   


The RE is based on an X86 or PowerPC architecture depending on their specific platform which is running the Junos OS. Though the RE maintains the routing tables and connects to the Packet Forwarding Engines (PFE).




Stay tuned for more information for Juniper cert for JNCIA-JUNOS and also you can see for ccna notes also at this blogspot youngccnaguru.blogspot.com with lab practices.

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