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Create your own Telemetry Sensor in Junos

Junos offers a broad range of automation capabilities, starting from a YANG based configuration and state information base , accessible via CLI, NETCONF and REST over gRPC based JET APIs directly into various Junos daemons. Some readers might even be familiar with custom YANG, allowing...

mwiget's profile image

Blog Entry
Collecting comprehensive switch interface information

Symptoms When working with EX / QFX switches it is often required to collect comprehensive interface status data. Not any single show command will provide all the details and merging the output of several commands is tedious and time consuming. On top of this, it can be tricky to...

lacko's profile image

Blog Entry
Using Python to script CoS on EX / QFX switches

The Challenge of Scripting Have you ever been faced with the challenge of querying or changing the configuration of several hundreds or even thousands of devices on your network? Have you ever considered using Python language to create a script that analyses the current configuration and...

lacko's profile image

Blog Entry
Deploy Juniper vMX via Docker Compose

Being able to download and run Juniper vMX on KVM and ESXi has really helped me learning more about networking, telemetry and build automation solutions. But the software dependencies combined with manual editing and launch of shell scripts per vMX instance felt a bit outdated to me. Why...

mwiget's profile image

Blog Entry
L2 security on IPv6

When I wrote a blog about using a switch as security device in 2013, I couldn’t have predicted the attention it got. It might have been the fact that I publicly admitted to being aware of my mental state for writing about switches in a security oriented blog space. Or maybe it was the content of...


Blog Entry
JUNOS Hashtags

Imagine that you can tag configuration elements in JUNOS with arbitrary strings and selectively display parts of the configuration based on a tag value. Much like you use hashtags in social media networks. The hashtag can represent a customer, a service, a temporary feature, or just about...


Blog Entry
Code-Free Automation

When you hear the word “automation”, what do you visualize? Usually it will be some script, code or program that is executed to repeat the manual activity at machine speeds. There are other simpler ways automation manifests in. With Junos, you get some features that help you automate work...


Blog Entry
How-To: Deployment of DSCP PFC and Scheduler Mapping on QFX5200

Background, Introduction and New Deployment Design Juniper’s QFX5200 Ethernet Switch supports flexible 10GbE, 25GbE, 40GbE, 50GbE, and 100GbE interfaces for Ethernet connectivity, which delivers a line-rate, low-latency, and high-density platform for building large Hub-and-Spoke IP-fabric data...


Blog Entry
OpenConfig and gRPC Junos Telemetry Interface

Starting in Junos OS Release 16.1R3 one can request streaming telemetry data using the gRPC framework with vendor-neutral data models based on OpenConfig. Great, but what configuration is required and is there a simple client available to test and troubleshoot it? I recently faced this question...

mwiget's profile image

Blog Entry
Junos Node Slicing Demo Videos

Junos Node Slicing Demo Videos Have you read about Node Slicing on the TechWiki , or in the press here or here ? We announced support for this cool feature in with 17.2 and the buzz from our customers has been great. Seeing is believing and since all of you cannot come visit Sunnyvale...