18 Aug

Generate multicast​ traffic in VIRL using Ostinato

Cisco and VIRL logos

Ostinato is a traffic generator. You can use it to craft packets and send flow into your network. You can even send multiple streams if required. It is a tool that network admins and developers should use for testing the system or application against various scenarios. Ostinato is by default available on Cisco VIRL so we can use it as a packet generator in our simulations.

Ostinato consists of two components – the LXC image run in a simulation that generates the traffic and GUI frontend. In this article, I will show you how to use it to generate a multicast stream in VIRL simulation.

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01 Jun

How to manage simulation in VIRL from local network

Cisco and VIRL logos

I’ve been using Cisco VIRL for over two years for both learning technologies and testing new solutions as PoC. Accessing devices in simulation via embedded console link is easy but not efficient. I always wanted to manage simulation in VIRL from my laptop not desktop PC. Also in many scenarios you  may want to connect external servers like netflow collector or IPAM software you wanna test. Also it’s quite handy to have access to running simulation form Internet, isn’t it?

Let me show you how I connect Cisco VIRL running simulation to other devices in my network and to Internet. In this tutorial I assume that you didn’t change default VIRL networking configuration.

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