Multicast video and VOIP phone paging will not work on same network

alexc5150
Comes here often

Multicast video and VOIP phone paging will not work on same network

The network is set up as follows:

 

MX 84 -> MS425(1) -> MS125(10). 

 

Voice VLAN 2 - 192.168.9.0/24  MX IP 192.168.9.1

TV VLAN 30 - 192.168.100.0/24 MX IP 192.168.100.1

 

The switch ports are configured to Access and assigned the proper VLAN.

 

 

 

I have configured an interface on the MS425 under Routing & DHCP:

 

Interface:

VLAN:30

Name: TV interface 

Subnet: 192.168.100.0/24

IP: 192.168.1.5

DHCP settings: off

OSPF Routing: Disabled

Multicast Routing:  IGMP snooping querier

 

I also have a static route

Name: Default Route

Subnet: 0.0.0.0/0

Next Hop IP: 192.168.100.1

Advertise via OSPF?: No

Preferred over OSPF routes? Not preferred

 

Under Switch Settings I have IGMP snooping ENABLED and Flood unknown multicast traffic DISABLED.

 

With these settings the multicast video works but we are unable to use the PAGE function on the VOIP phones.

 

When I disable IGMP snooping and ENABLE flood the paging works but the video stops working.

 

Also, paging works phones connected to the same switch.

 

Is there a way to assign IGMP snooping to just a VLAN and an entire switch setting?

 

 

2 Replies 2
Bruce
Kind of a big deal

Do you have an IGMP querier setup on VLAN2? (The same as you have an IGMP querier setup on the VLAN30 interface). You need an IGMP querier per VLAN to get the IGMP snooping working on the interfaces.

PhilipDAth
Kind of a big deal
Kind of a big deal

>When I disable IGMP snooping and ENABLE flood the paging works but the video stops working.

 

To me, this suggests a defect in the paging phone multicast software.  The software should be sending an IGMP join - and this suggests it is not.

 

Also check out this excellent post about configuring multicast:

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

Get notified when there are additional replies to this discussion.
Welcome to the Meraki Community!
To start contributing, simply sign in with your Cisco account. If you don't yet have a Cisco account, you can sign up.
Labels