Khalil Ismayilov, Author at Plixer

Configuring sFlow on Arista devices

Today I want to show you how to configure sFlow on your Arista device and demonstrate its featured output through Plixer Scrutinizer. Our goal is to define multicast flow on our switch.

Network Operations

Cisco ISR4300 IPFIX configuration

05.12.21 - Khalil Ismayilov

I recently helped a customer configure NetFlow on their ISR4300. I found that ISR43XX/44XX routers run IOS-XE, which only supports Flexible NetFlow (FNF). NetFlow is a Cisco technology that provides statistics on packets flowing through the router. It’s the standard for acquiring IP operational data from IP networks.

Network Operations

Custom script-based sensor for PRTG

03.12.21 - Khalil Ismayilov

Today I would like to explain how to create a custom script that sends specific information to PRTG as a sensor. Customers often ask me how to use PRTG to tack the uptime and downtime of Scrutinizer. So, what specific parameter needs to be set up so that the PRTG sensor would react immediately on it?

Network Operations

Defining top talkers with Flexible NetFlow and AVC

12.16.20 - Khalil Ismayilov

I was recently on a call with a customer who wanted to know which applications use the most bandwidth during working hours—i.e. their top talkers. This gave me a great opportunity to review a specific feature of Flexible NetFlow and AVC integration. I’ve decided to build a small lab with a simple network configuration where I could set up a couple of VLANs, a trunk communication between L2 and L3 devices, and couple of devices. The end goal is to define what host under what VLAN is using what application the most.

Security Operations

How to detect a reverse SSH tunnel

09.28.20 - Khalil Ismayilov

Today we are going to talk about Plixer’s new Flow Analytics algorithm, Reverse SSH Shell, which has been included in the latest Plixer Scrutinizer update. The Reverse SSH Shell algorithm identifies possible reverse SSH tunnels to external destinations.