| Description | This article describes some options on how to generate multicast traffic. There can be cases where it is required to carry out multicast testing for replicating issues or pre-implementation testing. |
| Scope | Multicast testing. |
| Solution |
Generating traffic for multicast-related issues or pre-implementation testing is not as straightforward as unicast traffic. There are multiple ways of generating multicast traffic. The two options mentioned below have been tested in the lab environment with FortiGate. For the purpose of easiness refer to the below simple diagram.
Option 1: Use a Linux server and client to generate multicast traffic using iPerf ( this option is more straightforward). See the server-side and client-side iPerf command outputs here for reference.
Option 2: Use a VLC media player to multicast a video and receive it from the other end. (Some abnormalities may be observed from the receiving end.)
To make sure the traffic is flowing the easiest way is to do a sniffer with the multicast address as follows. Note: Traffic flow will vary based on your configuration, especially the multicast policy, etc.
FortiGate-81E-POE # dia sniffer packet any ' host 239.255.200.2 ' 4 0 l
Option 2: Use Multicast Tester if Windows is used.
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