cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
248
Views
0
Helpful
5
Replies
Highlighted
Beginner

Informacast Paging No Audio for Multicast

Hello

 

I am having issues using Paging with Mutlicast.

 

I have read that I need to activate IP-MULTICAST in router and/or switch L3. In my case it would be L3 but my IOS arent IPSERVICES so I can't activate multicast.

 

I was wondering if I put my Paging Server in the same Vlan that use my phones the audio go through succefully to my phones or anyway I would need to activae multicast?

Everyone's tags (3)
5 REPLIES 5
Highlighted
Rising star

Re: Informacast Paging No Audio for Multicast

It is layer 2 multicast at that point and uses IGMP snooping. 

Look at the license you have supported do you supported IGMP snooping and layer 2 mcast?

 

Similar Thread

https://community.cisco.com/t5/switching/ip-base-license/td-p/2579539

 

Highlighted
Beginner

Re: Informacast Paging No Audio for Multicast

My Switches are L3 and I can't enable multicat because I don't have access to "ip multicast routing" command

 

So I want to know if I put my paging server in the same vlan that my IP Phone I still would need multicast

Highlighted
Rising star

Re: Informacast Paging No Audio for Multicast

The answer is yes liked stated above. It is layer 2 mcast.... see comment above about igmp snooping. 

 

Show your exact model and licenses you ordered on the switch if you need someone to comment on it. The IP services model of licensing is a pretty old one, but I no longer quote licensing alot.

Highlighted
Beginner

Re: Informacast Paging No Audio for Multicast

Ok do you mean that now I have to enable just multicast in L2 with IGMP Snooping?

 

I think the commands should be:

 

ip pim sparse-dense-mode

ip igmp version 3

 

Under vlan de voice right?

Highlighted
VIP Collaborator

Re: Informacast Paging No Audio for Multicast

Yes, you need to configure those commands under your interface vlan. For example:

interface Vlan10
 ip address 172.16.1.1 255.255.255.0
 ip pim sparse-dense-mode
 ip igmp version 3

Please check below document for more details:

https://www.cisco.com/c/en/us/support/docs/switches/catalyst-6500-series-switches/68131-cat-multicast-prob.html 

 

 

Please rate helpful posts and if applicable mark "Accept as a Solution".
Thanks, Vaijanath S.
CreatePlease to create content
Content for Community-Ad
Future of Work Virtual Summit Day 5

Cisco COVID-19 Survey