Juniper Certification | JNCIA-JUNOS | Day-1 JUNOS Operating System Fundamentals

By Published on

JUN-Operating-System Fundamentals

On today's topic we are going to see on Juniper cert for JNCIA-JUNOS that is an associate level exam that everyone can learn with some networking concepts in which you can use documents from juniper site for those. But now i will explain fundamentals in JUNOS.

JNCIA-Junos - JN0-103 - Juniper Routing & Switching - Tests | Udemy

The JUNOS Operating System provides a common language across juniper routing, switching, and security devices. That the power of one JUNOS operating system reduces complexity in high-performance networks to increase availability and deploy services faster, with lower total cost of ownership.

The main objectives you will be able to get that;
  • To describe this JUNOS OS and it's basic design architecture. 
  • Also you can explain traffic processing for transit expectation and exemption taffic.
  • Also provide a brief overview of JUNOS OS devices.
. Juniper: Send in the Bots for Network Peering, Testing

JUNOS OS Functionality 

  • It is quite compartmentalized into multiple software process. In each process it does handles a portion of devices functionality. 
  • Though each process runs in it's own protected memory space (To be like AI Brain).that ensures by which it cannot run process directly to interface with another.
  • When a single process fails, then the entire system does not necessarily fails.
  • That this modularity also ensures that few new features can be added with less likelihood of breaking current functionality.
Note: JUNOS is a secure network as well as trusted, in operating system by powering the high-performance network infrastructure that offered by Juniper networks. That it provides industry leading performance and scalability (i.e., scale or size).It is built on an open-source operating systems (like Linux or Unix). This JUNOS depends on devices that can run on a modified and hardened version of either Free BSD or Linux.

Difference Between Linux And BSD | Open Source Operating Systems

Stay tuned for more information on Juniper certification preparation for JNCIA-JUNOS associate level exams. 
       

Comments

Post a Comment

Popular posts from this blog

Juniper Certification | JNCIA-JUNOS | Day-5 Exception Traffic Processing

By Published on
Today friends we are going to look over exception at traffic processing  is traffic that is destined for the local system. Unlike transit traffic, exception traffic does not pass through local device. It requires some for of special handling. Now let's see this simple example if you wanted to check if the router up, you would ping its loopback address. This would be regarded as Exception Traffic, as packets destined for a device requires additional processing by the Routing Engine (RE). Traffic that requires the generation of Internet Control Message Protocol (ICMP) messages. ICMP messages are sent to the packet’s source to report various error conditions and to respond to ping requests.  When we see some examples of ICMP errors include destination unreachable messages, which are sent when no entry is present in the forwarding table for the packet’s destination address, and time-to-live (TTL) expired messages, which are sent when a packet’s ...
Read more

Juniper Certification | JNCIA-JUNOS | Day-7 What is SDN and Products in Juniper

By Published on
On this particular day we are going to see on topic called SDN in Juniper. What is SDN ? SDN is a network software defined in networking term as Software Defined Networking. That this software do not run some Junos OS because there are group of designs made for juniper networking into cloud based solutions are made.  These are some products you need to know in juniper; NFX series are network services platform used in junos as customer premises equipment (CPE), that they are designed with these features : to provide very fast custom services  with delivery on demand they are secure on-premises can run and chains with multiple virtualisation network it functions simultaneously in an open environment   it also supports embedded vSRX security functionality Contrail Cloud it is just suite of products that enabling SDN does : network function virtualisation (NFV) and services done in cloud environment   it uti...
Read more

Juniper Certification | JNCIA-JUNOS | Day-4 Transit Traffic Processing

By Published on
Image
On this session we will proceed to Transit Traffic Processing consists of all the traffic that enters an ingress (i.e., an action of going in or entering) a network port, it is compared against the forwarding table entries and it is finally forwarded out an egress (i.e., action of going out or leaving) the network port toward its destination.  A forwarding table entry for a destination must exist for the device running the Junos OS to successfully forward transit traffic to that destination. A Transit Traffic passes through the fo rwarding plane only and is never sent to or processed by the control plane only and it is never sent to or processed by the control plane. By processing transit traffic through the forwarding plane only, platforms running the Junos OS can achieve predictably high in performance rates. From the above image we can see that Transit Traffic can be both ; Unicast Multicast I n Unicast transit traffic which enters one ingress port and it is tra...
Read more