SAVI AV Audio Video display issues.

[Popstroke]

Hello,

We use SAVI Audio Video Encoders at our locations. I have currently set up a new Network with A MX and some meraki switches. Does anyone know the required settings I need to make in order to get these servers operational?  They disconnect and video streams are not working correctly full of pixels etc.

[GIdenJoe]

Does your video system work with multicast?
If it does then you will need to put the L3 boundary of the network on the switches and run IGMP querier on it.

If you need PTP then these switches aren't the correct choice for your deployment.

I'm quite sure your stream would work perfectly fine if both transmitter and receiver is on the same switch but starts to cut out on different switches.

[Popstroke]

It does use Multicast. Right now I have the Mx doing the Layer 3 and Vlan routing. So I will need to move it the the switch? Do not need PTP.

They are all on the same switch.

[GIdenJoe]

In any deployment that uses multicast to go from server to client you require IGMP on the switches AND you require an IGMP querier.

So you have 2 options depending on your setup.

If your multicast transmitter and receivers are on the same subnet and the same VLAN ID then you could keep your routing on the MX.  However your switch which must either a Catalyst or a routing MS switch that supports either IGMP querier alone or full PIM-SM.  And give it an IP in the same subnet as your deployment.  Then you can enable the feature.

Important note however that it is IGMPv2 that is supported and fast-leave is not supported in MS switches.  So if your setup requires it then you would need Catalyst switches running IOS-XE with optionally cloud management: source device configured.

If however the source and destinations live on different subnets then you need full PIM-SM routing and then you require at least MS250 or Catalyst switches and the routing for both subnets must be done on that switch then.

[PhilipDAth]

Check out this guide:

https://community.meraki.com/t5/Switching/Multicast-Basic-s/m-p/25867/highlight/true#M2125

There is also the multicast troubleshooting guide.

https://documentation.meraki.com/Switching/MS_-_Switches/Troubleshooting_and_Support/Troubleshooting...

[Brash]

@GIdenJoe 's post is pretty much spot on.

IGMP if all in an L2 domain and PIM-SM for multicast that has to move across an L3 domain.

Personally, I'd suggest:

 - Separating all of your multicast equipment onto a separate VLAN('s) from other devices in the network

 - Adding in a Catalyst 9300 in Meraki configuration mode (assuming that meets your other requirements) and connecting all of your multicast equipment to that. You can then set the IGMP querier on this device thereby limiting the traffic heading up to the MX.

The guides @PhilipDAth provided do a very good job at describing Multicast configuration and best practices within the Meraki environment.

[Popstroke]

Thank you for the info.

My setup is 7 9300's stacked. I have 6 separate VLANS off the MX. The SAVI VLAN is set as a interface on one 9300 now. I have not had a chance to test. But Basically eveything else on my network is Cloud camera's and WAP and IP Tv's that talk to the SAVI server. 

So basically my server and encoders and Ip Tv's for SAVI are on one VLAN and switch with an Interface for the VLAN. with IGMP on.

[GIdenJoe]

Then don't forget to enable IGMP querier in the interface settings.

[Popstroke]

We are also going to fiber run some Harden switches in the Feild. Will those have the same interface. since there will be TV's that need to talk to that Savi server on the TV Vlan.