There was a download of IxNetwork 7.0 on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. This program was originally designed by Ixia.
The following version: 7.0 is the most frequently downloaded one by the program users. IxNetwork.exe is the most common filename for this program's installer. The software is categorized as Internet & Network Tools. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software.
From the developer:
IxNetwork is a program that provides wire-rate traffic generation with service modeling that builds realistic, dynamically-controllable data-plane traffic. It allows you to perform tests performance by using comprehensive emulation for routing, switching, multi-protocol label switching (MPLS), IP multicast, broadband access, authentication, carrier Ethernet, data center bridging (DCB), and defined networking (SDN) protocols.
You may want to check out more software, such as MBT Navigator, CMUD or ICB2000, which might be similar to IxNetwork.