Hello. I have 2 x Summit X440-24P switches with a 10053-PRO installed in each and connected to fiber. One switch has 3 x AVB devices connected. The other switch had 1 x AVB device connected. Both devices have AVB enabled on all ports. I can ping devices on either switch from the other switch. I have passed data traffic down the default VLAN. I can see all devices joining the AVB VLAN on their respective switches. But the AVB VLAN does not appear to be propagating across the fiber. I have no AVB audio propogating between devices on the fiber. I reached out to Biamp (whose audio processors we are using) and they suggested a couple of things, none which appear to solve the problem as I still have to AVB audio propagating between devices. Any help you can give to an old AV guy is definitely appreciated! Question......when looking at the devices on the AVB VLAN in my configuration, will the number of devices on the VLAN show as 4 on both ends once configured properly? Currently I have 3 on the one and 1 on the other. I want understand this better for future reference and trouble shooting. Thanks for the help.