# VP9 and simulcast

**URL:** <https://mediasoup.discourse.group/t/vp9-and-simulcast/4186>\
**Category:** mediasoup libraries\
**Created:** [May 18, 2022, 11:19pm UTC](https://mediasoup.discourse.group/t/vp9-and-simulcast/4186 "2022-05-18T23:19:30Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![JeffMan](https://yyz2.discourse-cdn.com/free1/user_avatar/mediasoup.discourse.group/jeffman/32/1369_2.png) [@JeffMan](https://mediasoup.discourse.group/u/JeffMan)\
**Post date:** [May 18, 2022, 11:19pm UTC](https://mediasoup.discourse.group/t/vp9-and-simulcast/4186/1 "2022-05-18T23:19:30Z")

</div>

```auto
encodings :
                    [
                        { rid: 'r0', scalabilityMode: 'S1T3', maxFramerate: fps },
                        { rid: 'r1', scalabilityMode: 'S1T3', maxFramerate: fps },
                        { rid: 'r2', scalabilityMode: 'S1T3', maxFramerate: fps }
                    ],

```

 ![image](https://global.discourse-cdn.com/free1/uploads/mediasoup/original/2X/1/101913798ab8c162db7ac6d021a8f58ff77b40eb.png)

I thought VP9 supported Simulcast. What am I doing wrong?