Monthly Archives: April 2023

67. Routing and Forwarding tables Let’s get to the Junos terminal and understand how to view the routing and the forwarding table. All right, I’m here at the terminal of a Junos device. As you can see, I’m in the operational mode to view the routing table. I’ll use the command show route. This shows […]

64. Introduction to Routing Let’s now shift our focus to routing, let’s understand why do we need to set up routing information? Let’s begin with a simple topology. So here I have two devices or two endpoints. The first one has an IP address of one ninety to 168. One . 10./twenty four. And the […]

61. Unified ISSU Let’s now talk about a unified ISIS u. This topic is an extension to the topic of upgrading Junos that we talked about in the last video. Let’s talk about this. Unified ISIS u stands for unified inservice software upgrade. This feature allows you to upgrade your Junos device between two different […]

58. Junos Naming Convention Let’s talk about the Junos naming convention. So in this lecture, we’ll understand how Junos names its software images. There’s a lot of important points that we’re going to cover in this video. So make sure you have a pen and a paper to take the notes or make sure are […]

55. System and Chassis Information Welcome back. Let’s look at the commands that we can use to view system and Chessie information. We’re going to try these commands from the terminal. But if you’d like to bookmark the commands, here’s the list. These are the commands that we’re going to use to view the system […]

53. Rescue Configuration Let’s now talk about rescue configuration. A rescue configuration is a user defined, known good configuration that is designed to restore connectivity in the event of configuration problems. So when you put a Judo’s device and let’s say the active configuration is corrupted, the Junos device will automatically load the rescue configuration […]

50. Tracing Let’s talk about an interesting topic called tracing. Tracing allows you to track events that occur on the Junos device. And this includes both normal operations and error conditions. Tracing is the Junos term for what other vendors call as debug. So if you worked on equipment from other vendors, you might have […]

47. Configuration Groups Let’s talk about an interesting topic called the configuration groups. So what is a configuration group? Well, a configuration group is a configuration snippet that can be applied to other parts of the configuration. So you would start by creating a configuration group containing configuration statements. And this can then be applied […]

44. Interface Naming Conversion Let’s understand the interface naming convention on a Junos device. Junos uses a standard naming convention for its interfaces, and most interfaces are named as type hyphen FBC Forward/Pich Forward/port type represents the type of interface which is gigabit Ethernet or Fast. Ethan Net FBC stands for Flexible Pig Concentrator. In […]

41. User Accounts Let’s now talk about user accounts, user accounts provide a way for users to access the Junos device. When you create a user account on a journalist device, a home directory gets assigned to the user. The path for which is/V.A./home,/the user name of the device. Normally, when you’re creating a user […]