I have a Layer 3 switch that is running ipbase feature set. On this switch i have 4 VLANs 2 voice and 2 video. There is a trunk from this switch to another switch. I have enabled ip multicast-routing on the L3 switch. I have IP paging speakers that "rely" on multicast to work. The source comes from a paging relay that then sends out the multicast to the speakers. One speaker is in the same VLAN as the paging relay and works fine (they are both on the layer 3 switch directly). The other speaker is in a different VLAN on the trunked switch. When we send a page to the second speaker, we get no audio.
I'm trying to determine if it's an issue with my multicast configuration or with the IP speaker's configuration.
As a note since i'm running IPBASE I cannot run the ip pim sparse-dense on the VLAN interfaces of the Layer 3 switch. However if i run the command show ip pim interface all of my vlan interfaces are displayed. Likewise if I run the command show ip igmp snooping group it shows several multicast groups some of which are present it several vlans.
I can provide run configs of the switches for more detail, but someone may have an immediate idea without them so just let me know!
With these outputs is it safe to say that the L3 switch is correctly seeing the clients register to the Multicast group, and that when traffic destined to that multicast address, it will be sent to those two vlans?
I know the basics for Cisco routers and switches but what I want to know is, if I set up VTP on a switch, is there a way to send it through routers to other switches? This will probably end up more hassle than gain, but it's interesting and cool to p...